Climate averages 1991–2020
Sandakan weather
in September.
A hot, very wet month: the joint 3rd warmest and the 7th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a hot month in Sandakan: daytime highs average 30.1°C and nights cool to about 24.4°C. By daytime temperature it is the joint 3rd warmest of the 12 months.
Expect about 243 mm of rain on roughly 27 days, which makes September a very wet month (the 7th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 09 min on an average September day.
The nearest other city in this atlas is Lahad Datu (94 km away). In September its highs average 29.5°C, 0.6°C cooler than Sandakan, with 168 mm of rain.
Among the 72 cities listed in Malaysia, Sandakan ranks joint 10th of 72 for the warmest September highs and 65th of 72 for the driest September (rainfall, lowest first). The mean September high of those 72 cities is 29.6°C; Sandakan is 0.5°C warmer than that mean.
From September to October, average highs fall by 0.6°C to 29.5°C, and monthly rainfall rises from 243 mm to 282 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
Sandakan climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 27.8°C23.8°C | 23.8°C | 287 | 27.8 | 11.812 h |
| February | 28.1°C23.8°C | 23.8°C | 217 | 23.8 | 11.912 h |
| March | 29.0°C24.1°C | 24.1°C | 197 | 23.5 | 12.112 h |
| April | 30.0°C24.6°C | 24.6°C | 169 | 21.9 | 12.212 h |
| May | 30.3°C24.9°C | 24.9°C | 237 | 26.9 | 12.412 h |
| June | 30.1°C24.6°C | 24.6°C | 244 | 26.3 | 12.512 h |
| July | 30.0°C24.4°C | 24.4°C | 222 | 26.0 | 12.412 h |
| August | 30.2°C24.5°C | 24.5°C | 225 | 26.6 | 12.312 h |
| September, selected | 30.1°C24.4°C | 24.4°C | 243 | 26.8 | 12.212 h |
| October | 29.5°C24.2°C | 24.2°C | 282 | 29.0 | 12.012 h |
| November | 28.9°C24.1°C | 24.1°C | 278 | 28.5 | 11.912 h |
| December | 28.5°C24.0°C | 24.0°C | 289 | 29.5 | 11.812 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
- Lahad Datu in SeptemberMalaysia · 94 kmHigh 29.5°C · Low 24.1°C · 168 mm rain
- Tawau in SeptemberMalaysia · 179 kmHigh 29.0°C · Low 24.2°C · 176 mm rain
- Keningau in SeptemberMalaysia · 224 kmHigh 29.9°C · Low 21.7°C · 122 mm rain
- Kota Kinabalu in SeptemberMalaysia · 227 kmHigh 29.1°C · Low 24.2°C · 173 mm rain
- Putatan in SeptemberMalaysia · 228 kmHigh 29.2°C · Low 23.9°C · 173 mm rain
- Tarakan in SeptemberIndonesia · 287 kmHigh 28.4°C · Low 24.9°C · 227 mm rain
- Jolo in SeptemberPhilippines · 320 kmHigh 28.1°C · Low 26.1°C · 101 mm rain
- Labuan in SeptemberMalaysia · 324 kmHigh 29.3°C · Low 25.2°C · 158 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 Sandakan) is explained once on the Sandakan year overview and on the Sources, method and limits page.