Climate averages 1991–2020
Ambon weather
in September.
A warm, moderately wet month: the 9th warmest and the 2nd driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a warm month in Ambon: daytime highs average 26.8°C and nights cool to about 25.0°C. By daytime temperature it is the 9th warmest of the 12 months.
Expect about 71 mm of rain on roughly 14 days, which makes September a moderately wet month (the 2nd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 05 min on an average September day.
The nearest other city in this atlas is Sorong (464 km away). In September its highs average 29.4°C, 2.7°C warmer than Ambon, with 249 mm of rain.
Among the 200 cities listed in Indonesia, Ambon ranks joint 191st of 200 for the warmest September highs and 101st of 200 for the driest September (rainfall, lowest first). The mean September high of those 200 cities is 30.1°C; Ambon is 3.3°C cooler than that mean.
From September to October, average highs rise by 0.9°C to 27.7°C, and monthly rainfall falls from 71 mm to 70 mm.
The annual picture
September in context
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, selected | 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
September in nearby cities
- Sorong in SeptemberIndonesia · 464 kmHigh 29.4°C · Low 23.9°C · 249 mm rain
- Ternate in SeptemberIndonesia · 507 kmHigh 27.5°C · Low 25.4°C · 180 mm rain
- Tual in SeptemberIndonesia · 550 kmHigh 26.5°C · Low 24.9°C · 40 mm rain
- Dili in SeptemberTimor Leste · 613 kmHigh 32.0°C · Low 22.5°C · 20 mm rain
- Kendari in SeptemberIndonesia · 630 kmHigh 29.6°C · Low 23.4°C · 82 mm rain
- Baubau in SeptemberIndonesia · 649 kmHigh 30.2°C · Low 23.6°C · 24 mm rain
- Kotamobagu in SeptemberIndonesia · 655 kmHigh 28.8°C · Low 22.0°C · 181 mm rain
- Bitung in SeptemberIndonesia · 664 kmHigh 29.4°C · Low 25.1°C · 66 mm rain
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 limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Ambon) is explained once on the Ambon year overview and on the Sources, method and limits page.