Amsterdam has an indoor-first climate for Ficus elastica, with an outdoor climate-match score of 40/100. The score does not say whether a plant can live in your home. It compares the city’s outdoor normals with the climate envelope measured at quality-filtered records in the species’ native range, then separates that outdoor comparison from the care pressure on a potted indoor plant.
The useful answer is seasonal: the strongest fully suitable outdoor window is no month in the 30-year normal. A broader, marginal window is no reliable outdoor window, but marginal months need day-by-day judgment and a protected, shaded position. Indoors, use the monthly calendar below to decide when to check the pot sooner or later. It is deliberately not a fixed watering schedule.
The direct climate answer for Amsterdam
Outdoor radiation is the largest mismatch in Amsterdam. The comparison is a macroclimate signal: window glass, orientation, trees, buildings, and distance from the window still determine the light that reaches an indoor leaf. The city’s low-temperature signal reaches -4.7°C in the coldest part of the normal year, while the hot-temperature signal reaches 26.8°C. Those are outdoor climate values, not indoor room measurements.
The local pattern is not a generic season swap. In the 1991–2020 NASA POWER normal, December is the wettest month and April is the driest, while outdoor solar input peaks in June and bottoms out in December. For an indoor Rubber Plant in Amsterdam, those signals matter because pot drying can change even when your room temperature changes only a little.
The overall score is rounded to the nearest five. That is intentional: reanalysis grids, occurrence locations, a city’s microclimates, and the difference between outdoor weather and an actual room do not justify single-point precision.
What this local climate means for a Rubber Plant
Rubber Plants respond best to stability. Use the city profile to anticipate seasonal changes around the window, then keep placement, drainage, and watering decisions consistent enough to isolate the real cause of any leaf response. A climate shift can change pot drying, but it does not prove that a yellow leaf needs more water.
Read the monthly signal through the root zone and the canopy together. Check moisture below the surface, compare pot weight with the last cycle, and note whether the newest leaf is expanding normally. Sudden lower-leaf drop after a move, a cold draft, or a large change in light is more useful evidence than the calendar by itself.
An outdoor stay is optional, not required. If local normals show a suitable window, introduce the plant to bright shade gradually, protect the leaves from abrupt direct sun, and bring it inside before marginal nights. In cities with no reliable outdoor window, one stable bright indoor position is the safer long-term plan.
Outdoor climate match: 40/100
25/100 — Cold-Night Compatibility. Amsterdam is the clearest macroclimate constraint.
65/100 — Warm-Season Heat Compatibility. Amsterdam overlaps the habitat envelope but needs seasonal management.
20/100 — Outdoor Solar-Climate Compatibility. Amsterdam is the clearest macroclimate constraint.
35/100 — Precipitation And Humidity Compatibility. Amsterdam is the clearest macroclimate constraint.
60/100 — Seasonal-Rhythm Compatibility. Amsterdam departs materially from the habitat envelope.
The weighted score uses cold 30%, heat 20%, moisture 20%, light 20%, and seasonality 10%. Cold receives the largest weight because Ficus elastica is frost-sensitive and a single cold exposure can matter more than a modest mismatch in annual averages. “Light” here means outdoor solar climate, not the light at a particular windowsill.
Native climate versus Amsterdam
The plant Climate DNA was built from 30 spatially thinned GBIF occurrence records within the POWO native range of Nepal to western Yunnan and western Malesia. CHELSA 1981–2010 values were sampled at those coordinates, then summarized with robust percentiles so a small number of extreme records could not define the whole envelope. The city side uses the NASA POWER custom 1991–2020 climatology for a consistent long-term monthly comparison.
| Signal | Native occurrence envelope (p10–p90) | Amsterdam normal |
|---|---|---|
| Coldest-month minimum | 6.0 to 22.9°C | -4.7°C low-temperature signal |
| Warmest-month maximum | 27.7 to 36.9°C | 26.8°C hot-temperature signal |
| Annual precipitation | 957 to 3404 mm | 830 mm |
| Relative humidity | 59 to 68% | 85% |
| Outdoor solar climate | 14.1 to 19.3 MJ/m²/day | 10.6 MJ/m²/day |
These comparisons describe macroclimate. Ficus elastica is a large wet-tropical tree, so regional open-sky solar radiation cannot be read as the light reaching a potted leaf through glass or below a canopy.
Month-by-month Rubber Plant care calendar
| Month | Mean temp | Colder-night signal | Humidity | VPD | Pot-check pressure | Outdoors | What to do |
|---|---|---|---|---|---|---|---|
| January | 3.3°C | -4.7°C | 91% | 0.07 kPa | low | indoors | Keep the plant indoors and away from cold glass or drafts; let the pot dry further before rechecking. |
| February | 3.5°C | -3.8°C | 90% | 0.08 kPa | low | indoors | Keep the plant indoors and away from cold glass or drafts; let the pot dry further before rechecking. |
| March | 5.7°C | -1.5°C | 86% | 0.13 kPa | low | indoors | Keep the plant indoors and away from cold glass or drafts; let the pot dry further before rechecking. |
| April | 8.9°C | 1.2°C | 82% | 0.21 kPa | low | indoors | Keep the plant indoors and away from cold glass or drafts; let the pot dry further before rechecking. |
| May | 12.5°C | 4.7°C | 80% | 0.29 kPa | low | indoors | Keep the plant indoors and away from cold glass or drafts; let the pot dry further before rechecking. |
| June | 15.4°C | 8.7°C | 80% | 0.36 kPa | moderate | indoors | Keep the plant indoors and away from cold glass or drafts; let the pot dry further before rechecking. |
| July | 17.7°C | 11.4°C | 80% | 0.41 kPa | moderate | indoors | Keep a steady indoor routine and adjust from soil moisture and new growth, not the calendar alone. |
| August | 17.9°C | 11.5°C | 80% | 0.41 kPa | moderate | indoors | Keep a steady indoor routine and adjust from soil moisture and new growth, not the calendar alone. |
| September | 15.2°C | 8.7°C | 82% | 0.30 kPa | low | indoors | Keep the plant indoors and away from cold glass or drafts; let the pot dry further before rechecking. |
| October | 11.3°C | 3.5°C | 86% | 0.19 kPa | low | indoors | Keep the plant indoors and away from cold glass or drafts; let the pot dry further before rechecking. |
| November | 7.3°C | 0.3°C | 90% | 0.10 kPa | low | indoors | Keep the plant indoors and away from cold glass or drafts; let the pot dry further before rechecking. |
| December | 4.4°C | -3.2°C | 91% | 0.07 kPa | low | indoors | Keep the plant indoors and away from cold glass or drafts; let the pot dry further before rechecking. |
The low-temperature column uses NASA POWER’s monthly minimum-average climatology, not a forecast and not a room reading. The drying column is vapor-pressure deficit calculated from the monthly temperature and relative humidity. It compares atmospheric drying pressure between months but does not measure water leaving your specific pot.
How to use the watering-pressure signal
The pressure scale is relative within Amsterdam. A high-pressure month means the local mix of temperature, humidity, and atmospheric drying suggests checking the substrate earlier than in a low-pressure month. It never means “water now.” Pot diameter, root density, substrate, indoor heating or air conditioning, and distance from the window can easily outweigh the outdoor monthly signal.
Use the same observation loop all year: feel or probe the root zone, note the pot’s weight, look for active growth, and compare how long drying took after the previous watering. If the mix is still moist, wait. If it is dry at the depth appropriate for the pot and the plant is actively using water, water thoroughly and let the excess drain.
The 12-month climate dossier for Amsterdam
This section expands the table into month-to-month changes. Each comparison uses only the stored 1991–2020 city normal and the occurrence-derived plant envelope; it does not infer the conditions inside a particular room.
January in Amsterdam: severe cold risk, low check pressure
Amsterdam’s January profile pairs a 3.3°C mean with 91% humidity and 72 mm of modeled precipitation. From December to January, the mean changes -1.1°C, solar input changes +0.7 MJ/m²/day, and VPD changes 0.0 kPa. Its -4.7°C low-temperature signal falls below the native-record p10 of 6.0°C. Action: Keep the plant indoors and away from cold glass or drafts; let the pot dry further before rechecking. For a Rubber Plant, keep the root-zone check tied to pot weight and the newest leaf: stable upright growth is stronger evidence than the date. Protect the canopy from abrupt direct sun and temperature swings when moving it near glass or outdoors.
February in Amsterdam: severe cold risk, low check pressure
For February in Amsterdam, the climate normal reads 3.5°C, 90% relative humidity, and 5.0 MJ/m²/day of solar input. From January to February, the mean changes +0.2°C, solar input changes +2.4 MJ/m²/day, and VPD changes +0.0 kPa. Its -3.8°C low-temperature signal falls below the native-record p10 of 6.0°C. Action: Keep the plant indoors and away from cold glass or drafts; let the pot dry further before rechecking. For a Rubber Plant, keep the root-zone check tied to pot weight and the newest leaf: stable upright growth is stronger evidence than the date. Protect the canopy from abrupt direct sun and temperature swings when moving it near glass or outdoors.
March in Amsterdam: severe cold risk, low check pressure
The Amsterdam signal for March is defined by -1.5°C on the low side, 14.1°C on the high side, and 0.13 kPa VPD. From February to March, the mean changes +2.2°C, solar input changes +4.3 MJ/m²/day, and VPD changes +0.1 kPa. Its -1.5°C low-temperature signal falls below the native-record p10 of 6.0°C. Action: Keep the plant indoors and away from cold glass or drafts; let the pot dry further before rechecking. For a Rubber Plant, keep the root-zone check tied to pot weight and the newest leaf: stable upright growth is stronger evidence than the date. Protect the canopy from abrupt direct sun and temperature swings when moving it near glass or outdoors.
April in Amsterdam: severe cold risk, low check pressure
In Amsterdam, April brings 42 mm modeled precipitation, a 82% humidity normal, and low pot-check pressure. From March to April, the mean changes +3.2°C, solar input changes +5.6 MJ/m²/day, and VPD changes +0.1 kPa. Its 1.2°C low-temperature signal falls below the native-record p10 of 6.0°C. Action: Keep the plant indoors and away from cold glass or drafts; let the pot dry further before rechecking. For a Rubber Plant, keep the root-zone check tied to pot weight and the newest leaf: stable upright growth is stronger evidence than the date. Protect the canopy from abrupt direct sun and temperature swings when moving it near glass or outdoors.
May in Amsterdam: severe cold risk, low check pressure
May places Amsterdam at 12.5°C mean temperature with a slow growth signal and indoors outdoor status. From April to May, the mean changes +3.6°C, solar input changes +3.7 MJ/m²/day, and VPD changes +0.1 kPa. Its 4.7°C low-temperature signal falls below the native-record p10 of 6.0°C. Action: Keep the plant indoors and away from cold glass or drafts; let the pot dry further before rechecking. For a Rubber Plant, keep the root-zone check tied to pot weight and the newest leaf: stable upright growth is stronger evidence than the date. Protect the canopy from abrupt direct sun and temperature swings when moving it near glass or outdoors.
June in Amsterdam: high cold risk, moderate check pressure
The practical June reading for Amsterdam: 19.3 MJ/m²/day outdoors, 0.36 kPa VPD, and moderate relative check pressure. From May to June, the mean changes +2.9°C, solar input changes +0.7 MJ/m²/day, and VPD changes +0.1 kPa. Both temperature signals remain inside the broad p10–p90 native-record envelope. Action: Keep the plant indoors and away from cold glass or drafts; let the pot dry further before rechecking. For a Rubber Plant, keep the root-zone check tied to pot weight and the newest leaf: stable upright growth is stronger evidence than the date. Protect the canopy from abrupt direct sun and temperature swings when moving it near glass or outdoors.
July in Amsterdam: moderate cold risk, moderate check pressure
Amsterdam’s midyear July normal spans a 11.4°C low signal to a 26.8°C high signal, with 80% humidity. From June to July, the mean changes +2.3°C, solar input changes -0.4 MJ/m²/day, and VPD changes +0.0 kPa. Both temperature signals remain inside the broad p10–p90 native-record envelope. Action: Keep a steady indoor routine and adjust from soil moisture and new growth, not the calendar alone. For a Rubber Plant, keep the root-zone check tied to pot weight and the newest leaf: stable upright growth is stronger evidence than the date. Protect the canopy from abrupt direct sun and temperature swings when moving it near glass or outdoors.
August in Amsterdam: moderate cold risk, moderate check pressure
By August, Amsterdam records 17.9°C mean temperature, 82 mm modeled precipitation, and an active macroclimate growth band. From July to August, the mean changes +0.2°C, solar input changes -3.0 MJ/m²/day, and VPD changes 0.0 kPa. Both temperature signals remain inside the broad p10–p90 native-record envelope. Action: Keep a steady indoor routine and adjust from soil moisture and new growth, not the calendar alone. For a Rubber Plant, keep the root-zone check tied to pot weight and the newest leaf: stable upright growth is stronger evidence than the date. Protect the canopy from abrupt direct sun and temperature swings when moving it near glass or outdoors.
September in Amsterdam: high cold risk, low check pressure
The late-season September combination in Amsterdam is 82% humidity, 0.30 kPa VPD, and 11.1 MJ/m²/day solar input. From August to September, the mean changes -2.7°C, solar input changes -4.8 MJ/m²/day, and VPD changes -0.1 kPa. Both temperature signals remain inside the broad p10–p90 native-record envelope. Action: Keep the plant indoors and away from cold glass or drafts; let the pot dry further before rechecking. For a Rubber Plant, keep the root-zone check tied to pot weight and the newest leaf: stable upright growth is stronger evidence than the date. Protect the canopy from abrupt direct sun and temperature swings when moving it near glass or outdoors.
October in Amsterdam: severe cold risk, low check pressure
For a Amsterdam Rubber Plant, October is kept indoors, with low relative pot-check pressure and a 11.3°C mean. From September to October, the mean changes -3.9°C, solar input changes -4.9 MJ/m²/day, and VPD changes -0.1 kPa. Its 3.5°C low-temperature signal falls below the native-record p10 of 6.0°C. Action: Keep the plant indoors and away from cold glass or drafts; let the pot dry further before rechecking. For a Rubber Plant, keep the root-zone check tied to pot weight and the newest leaf: stable upright growth is stronger evidence than the date. Protect the canopy from abrupt direct sun and temperature swings when moving it near glass or outdoors.
November in Amsterdam: severe cold risk, low check pressure
November shifts Amsterdam to a dormant-like growth signal, backed by 7.3°C mean temperature and 90% humidity. From October to November, the mean changes -4.0°C, solar input changes -3.3 MJ/m²/day, and VPD changes -0.1 kPa. Its 0.3°C low-temperature signal falls below the native-record p10 of 6.0°C. Action: Keep the plant indoors and away from cold glass or drafts; let the pot dry further before rechecking. For a Rubber Plant, keep the root-zone check tied to pot weight and the newest leaf: stable upright growth is stronger evidence than the date. Protect the canopy from abrupt direct sun and temperature swings when moving it near glass or outdoors.
December in Amsterdam: severe cold risk, low check pressure
Closing the climate year, December in Amsterdam shows -3.2°C on the low side, 0.07 kPa VPD, and low check pressure. From November to December, the mean changes -2.9°C, solar input changes -1.0 MJ/m²/day, and VPD changes -0.0 kPa. Its -3.2°C low-temperature signal falls below the native-record p10 of 6.0°C. Action: Keep the plant indoors and away from cold glass or drafts; let the pot dry further before rechecking. For a Rubber Plant, keep the root-zone check tied to pot weight and the newest leaf: stable upright growth is stronger evidence than the date. Protect the canopy from abrupt direct sun and temperature swings when moving it near glass or outdoors.
How Amsterdam differs from the other 9 cities
Within this 10-city cluster, Amsterdam ranks #7 for overall outdoor match, #5 for cold severity, #10 for heat, #5 for annual precipitation, #1 for humidity, and #8 for solar input. These are descriptive ranks within this selected cluster, not claims about every city.
The nearest climate profile in the cluster is London, with a normalized distance of 0.155; the most contrasting profile is Brisbane at 1.673. The largest mean-temperature difference from London appears in January (-0.8°C), while the largest VPD difference occurs in July (-0.1 kPa).
| Month | Mean temp vs London | Humidity vs peer | Solar vs peer | VPD vs peer |
|---|---|---|---|---|
| January | -0.8°C | -2.0% | -0.4 MJ/m²/day | +0.0 kPa |
| February | -0.7°C | 0.0% | -0.4 MJ/m²/day | 0.0 kPa |
| March | -0.5°C | 0.0% | 0.0 MJ/m²/day | 0.0 kPa |
| April | +0.1°C | 0.0% | +0.9 MJ/m²/day | 0.0 kPa |
| May | +0.4°C | +1.0% | +1.1 MJ/m²/day | 0.0 kPa |
| June | +0.2°C | +2.0% | +0.4 MJ/m²/day | -0.0 kPa |
| July | +0.2°C | +4.0% | +0.5 MJ/m²/day | -0.1 kPa |
| August | +0.6°C | +3.0% | +0.5 MJ/m²/day | -0.0 kPa |
| September | +0.7°C | +1.0% | -0.3 MJ/m²/day | -0.0 kPa |
| October | +0.4°C | -1.0% | -0.5 MJ/m²/day | +0.0 kPa |
| November | +0.2°C | -2.0% | -0.7 MJ/m²/day | +0.0 kPa |
| December | -0.2°C | -3.0% | -0.4 MJ/m²/day | +0.0 kPa |
This nearest-neighbor table is useful when advice from another city looks tempting: it shows exactly which months and climate signals transfer reasonably and which do not.
The biggest mismatch and the first three adjustments
Outdoor radiation is the largest mismatch in Amsterdam. The comparison is a macroclimate signal: window glass, orientation, trees, buildings, and distance from the window still determine the light that reaches an indoor leaf. That mismatch is why the page keeps outdoor suitability separate from local care pressure: a poor outdoor cold match can coexist with a perfectly manageable indoor plant.
- Light buffering: Translate outdoor radiation into indoor placement cautiously: use bright indirect light and acclimate before any outdoor exposure.
- Cold protection: Treat cold nights as the hard stop: move the plant in before the first marginal month, not after visible damage.
- Drying control: Track how long the pot takes to dry. Local air and ET pressure change the check interval more reliably than a weekly schedule.
If you are moving a plant outside, acclimate it gradually in bright shade. Reverse the move before the first marginal cold month. A forecast always outranks a climate normal for a decision on a particular day.
Confidence and limits
The plant Climate DNA confidence is medium (58/100). It reflects sample size, geographic coverage across 29 quarter-degree cells, and coordinate-precision reporting. The city side uses one consistent NASA POWER source and period for every page in this cluster, which improves comparison but cannot resolve neighborhood, elevation, coastal, building, or room-level differences.
This model does not claim a physiological survival threshold. GBIF occurrence locations show where records exist; CHELSA and NASA POWER describe modeled macroclimate; neither dataset observes your plant, pot, or window. Use the result as a prioritization aid and combine it with current forecasts and direct observation.
Methodology and sources
- Taxonomy: GBIF Species API record; accepted name Ficus elastica.
- Native distribution: Plants of the World Online; Nepal to China (western Yunnan) and western Malesia.
- Occurrences: GBIF occurrence search; bad coordinates, uncertainty over 10 km, non-native countries, cultivated/introduced status, duplicates, and licenses other than CC0/CC-BY were excluded.
- Plant climate: CHELSA-climatologies V2.1, 1981–2010, CC0-1.0.
- City climate: NASA POWER Climatology API, custom 1991–2020 climatology, service v2.9.7. NASA POWER referencing guide.
Continue your Rubber Plant plan
Start with the complete Rubber Plant indoor care guide, browse the Rubber Plant climate guides by city, then compare another city climate:
- Rubber Plant care in London
- Rubber Plant care in Toronto
- Rubber Plant care in Vancouver
- Rubber Plant care in Sydney
Turn the climate signal into observations
Use KnowYourPlant to identify your plant, log what you see, and keep care notes for the conditions in your actual home.
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