Average annual temperature is 20.4 °C
Absolute maximum temperature: 27.6 °C
Absolute minimum temperature: 14.4 °C
Number of sunny days: 20 days
Number of rainy days: 345 days
Look at detailed online map of Ulumamis
* Weather data for Ulumamis Indonesia is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 25.6 | 26.0 | 25.9 | 26.4 | 27.0 | 27.6 | 27.3 | 27.2 | 26.6 | 26.7 | 26.1 | 26.6 |
| Average daytime temperature (°C) | 23.4 | 23.8 | 23.9 | 24.8 | 25.2 | 25.6 | 25.1 | 25.0 | 25.0 | 24.9 | 24.9 | 24.3 |
| Average temperature (°C) | 19.3 | 19.5 | 19.7 | 20.3 | 20.9 | 21.0 | 20.8 | 20.5 | 20.7 | 20.6 | 20.5 | 20.4 |
| Average night temperature (°C) | 16.5 | 16.5 | 16.7 | 17.6 | 18.1 | 17.9 | 17.8 | 17.8 | 17.9 | 17.8 | 18.0 | 18.1 |
| Absolute minimum temperature (°C) | 15.0 | 14.4 | 15.2 | 16.0 | 16.4 | 16.8 | 16.6 | 16.9 | 16.9 | 16.8 | 17.2 | 17.1 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 |
| Daylight mean duration (h) | 12.0 | 12.1 | 12.1 | 12.2 | 12.2 | 12.2 | 12.2 | 12.2 | 12.1 | 12.1 | 12.0 | 12.0 |
| Daylight minimum duration (h) | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 |
| Sunshine mean duration (h) | 7.6 | 8.9 | 8.4 | 8.2 | 8.4 | 8.8 | 8.9 | 8.1 | 8.6 | 8.3 | 7.7 | 8.1 |
| Precipitation (mm) | 141 | 227 | 229 | 198 | 147 | 142 | 96 | 267 | 194 | 236 | 363 | 380 |
| Sunny days | 1 | 2 | 0 | 0 | 3 | 3 | 8 | 1 | 2 | 0 | 0 | 0 |
| Rainy days | 30 | 26 | 31 | 30 | 28 | 27 | 23 | 30 | 28 | 31 | 30 | 31 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Ulumamis is at