Average annual temperature is 27.4 °C
Absolute maximum temperature: 37.6 °C
Absolute minimum temperature: 21.4 °C
Number of sunny days: 99 days
Number of rainy days: 266 days
Look at detailed online map of Merak
* Weather data for Merak 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) | 31.9 | 31.0 | 33.0 | 33.2 | 33.7 | 34.3 | 33.8 | 36.1 | 37.6 | 37.2 | 36.3 | 37.0 |
| Average daytime temperature (°C) | 29.9 | 28.8 | 31.0 | 31.8 | 32.2 | 33.2 | 32.5 | 34.1 | 35.5 | 36.2 | 34.5 | 33.5 |
| Average temperature (°C) | 25.7 | 25.5 | 26.0 | 26.6 | 27.5 | 27.9 | 27.2 | 27.9 | 28.7 | 29.5 | 28.3 | 27.8 |
| Average night temperature (°C) | 23.1 | 23.2 | 23.0 | 23.5 | 24.1 | 24.2 | 23.4 | 23.0 | 23.7 | 24.8 | 24.8 | 24.7 |
| Absolute minimum temperature (°C) | 22.4 | 22.2 | 21.9 | 22.3 | 23.3 | 22.4 | 21.9 | 21.4 | 21.9 | 23.6 | 23.5 | 23.7 |
| 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 | 12.3 | 12.1 | 12.0 | 11.8 | 11.7 | 11.8 | 11.9 | 12.1 | 12.3 | 12.4 | 12.5 |
| 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) | 8.5 | 7.0 | 9.0 | 9.5 | 10.2 | 10.7 | 10.5 | 10.9 | 11.0 | 11.1 | 10.4 | 9.3 |
| Precipitation (mm) | 305 | 325 | 336 | 205 | 63 | 36 | 40 | 1 | 13 | 42 | 172 | 192 |
| Sunny days | 0 | 0 | 0 | 0 | 14 | 9 | 18 | 25 | 20 | 7 | 1 | 5 |
| Rainy days | 31 | 28 | 31 | 30 | 17 | 21 | 13 | 6 | 10 | 24 | 29 | 26 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Merak is at