Average annual temperature is 25.5 °C
Absolute maximum temperature: 35.1 °C
Absolute minimum temperature: 18.9 °C
Number of sunny days: 94 days
Number of rainy days: 271 days
Look at detailed online map of Mertelu
* Weather data for Mertelu 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) | 30.1 | 29.8 | 31.3 | 31.4 | 31.6 | 32.7 | 31.5 | 32.6 | 33.7 | 35.0 | 35.1 | 34.7 |
| Average daytime temperature (°C) | 28.5 | 28.5 | 29.5 | 29.6 | 29.9 | 30.4 | 29.0 | 30.6 | 31.3 | 33.1 | 32.2 | 31.4 |
| Average temperature (°C) | 24.8 | 24.6 | 25.1 | 25.5 | 25.5 | 25.7 | 24.5 | 24.5 | 25.1 | 27.0 | 27.1 | 26.7 |
| Average night temperature (°C) | 22.1 | 22.3 | 22.1 | 22.5 | 22.4 | 22.5 | 21.4 | 20.6 | 21.3 | 22.8 | 23.6 | 23.1 |
| Absolute minimum temperature (°C) | 21.3 | 21.3 | 20.9 | 21.1 | 20.6 | 20.6 | 18.9 | 19.2 | 19.5 | 21.8 | 22.4 | 21.5 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 12.0 | 12.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 | 11.0 | 12.0 | 12.0 | 12.0 | 12.0 |
| Daylight mean duration (h) | 12.5 | 12.4 | 12.1 | 11.9 | 11.8 | 11.7 | 11.7 | 11.9 | 12.1 | 12.3 | 12.5 | 12.6 |
| Daylight minimum duration (h) | 12.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 | 11.0 | 11.0 | 11.0 | 12.0 | 12.0 | 12.0 |
| Sunshine mean duration (h) | 8.3 | 6.0 | 8.7 | 8.9 | 9.8 | 10.5 | 10.2 | 10.8 | 11.0 | 11.1 | 10.3 | 9.8 |
| Precipitation (mm) | 183 | 353 | 230 | 176 | 136 | 31 | 37 | 4 | 2 | 30 | 100 | 82 |
| Sunny days | 0 | 0 | 0 | 0 | 10 | 3 | 17 | 23 | 24 | 6 | 2 | 9 |
| Rainy days | 31 | 28 | 31 | 30 | 21 | 27 | 14 | 8 | 6 | 25 | 28 | 22 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Mertelu is at