Climate averages 1991–2020
Ambon weather
by month.
See how the year changes. December (tied with November) has the highest average daily maximum; October has the lowest average monthly rainfall.
Long-term climate patterns, not a forecast for a particular trip.
Across the year Ambon averages a daytime high of 27.6°C and a nighttime low of 25.6°C, with about 1,766 mm of rain on roughly 248 days. December (tied with November) is the warmest month (average high 28.5°C) and July (tied with August) the coolest (26.1°C). June is the wettest month with 241 mm; October is the driest with 70 mm.
The annual picture
A year in Ambon
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Ambon climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 28.3°C26.3°C | 26.3°C | 160 | 23.7 | 12.312 h |
| February | 28.4°C26.4°C | 26.4°C | 122 | 20.0 | 12.212 h |
| March | 28.4°C26.1°C | 26.1°C | 158 | 22.8 | 12.112 h |
| April | 28.1°C25.8°C | 25.8°C | 203 | 24.9 | 12.012 h |
| May | 27.6°C25.7°C | 25.7°C | 230 | 24.6 | 12.012 h |
| June | 26.7°C25.1°C | 25.1°C | 241 | 23.9 | 11.912 h |
| July | 26.1°C24.7°C | 24.7°C | 175 | 21.9 | 11.912 h |
| August | 26.1°C24.6°C | 24.6°C | 100 | 16.7 | 12.012 h |
| September | 26.8°C25.0°C | 25.0°C | 71 | 14.3 | 12.112 h |
| October | 27.7°C25.4°C | 25.4°C | 70 | 14.9 | 12.212 h |
| November | 28.5°C25.9°C | 25.9°C | 79 | 16.6 | 12.312 h |
| December | 28.5°C26.3°C | 26.3°C | 157 | 23.8 | 12.312 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
Nearby cities
- SorongIndonesia · 464 kmHigh 29.2°C · Low 24.2°C · 3,549 mm rain a year
- TernateIndonesia · 507 kmHigh 27.8°C · Low 25.5°C · 2,779 mm rain a year
- TualIndonesia · 550 kmHigh 27.2°C · Low 25.4°C · 1,904 mm rain a year
- DiliTimor Leste · 613 kmHigh 30.3°C · Low 23.6°C · 1,483 mm rain a year
- KendariIndonesia · 630 kmHigh 29.5°C · Low 24.1°C · 2,860 mm rain a year
- BaubauIndonesia · 649 kmHigh 29.2°C · Low 24.5°C · 1,881 mm rain a year
- KotamobaguIndonesia · 655 kmHigh 28.7°C · Low 22.7°C · 3,460 mm rain a year
- BitungIndonesia · 664 kmHigh 29.1°C · Low 25.1°C · 1,879 mm rain a year
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsWhat do the high and low temperatures mean?
We average the daily maximum and daily minimum for each calendar month over 1991–2020. They are not record extremes, a forecast range or temperatures at a fixed time of day.
How is a rain day counted?
A local calendar day (standard time, UTC+9, no daylight saving) with at least 1 mm of total precipitation counts as one rain day. We count these for each year and month, then average across 30 years. The average does not predict which days will be wet.
Where do the numbers come from?
ERA5-Land (temperature) and ERA5 (precipitation) reanalysis from the Copernicus Climate Change Service, read from the Open-Meteo open-data archive. Temperature comes from the 0.1° model cell at -3.70°, 128.20° (2 km from the city centre), adjusted up by 0.6°C for the difference between the city's elevation (12 m) and the cell's (107 m). Rain comes from the 0.25° cell at -3.75°, 128.25°. These are model estimates, not weather-station readings; coast, hills and city streets can differ.
Does this page show sunshine, humidity or sea temperature?
No. The data used here contain air temperature and precipitation only. Daylight hours are calculated from the city's latitude (sunrise to sunset), not measured sunshine.