Average annual temperature is 25.4 °C
Absolute maximum temperature: 33.4 °C
Absolute minimum temperature: 21.1 °C
Number of sunny days: 18 days
Number of rainy days: 347 days
Look at detailed online map of Gerayau
* Weather data for Gerayau 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) | 31.2 | 31.8 | 31.5 | 33.1 | 32.7 | 31.6 | 32.5 | 33.0 | 33.0 | 33.4 | 32.9 | 32.1 |
| Average daytime temperature (°C) | 29.1 | 29.7 | 29.3 | 30.8 | 30.6 | 29.8 | 30.0 | 30.4 | 30.9 | 31.3 | 30.9 | 30.4 |
| Average temperature (°C) | 24.6 | 24.8 | 24.7 | 25.7 | 25.9 | 25.5 | 25.5 | 25.7 | 25.8 | 25.8 | 25.7 | 25.5 |
| Average night temperature (°C) | 21.8 | 21.9 | 21.8 | 22.4 | 22.9 | 22.5 | 22.3 | 22.4 | 22.4 | 22.4 | 22.5 | 22.7 |
| Absolute minimum temperature (°C) | 21.2 | 21.1 | 21.3 | 21.4 | 21.7 | 21.8 | 21.5 | 21.7 | 21.5 | 21.5 | 21.7 | 21.6 |
| 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) | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 | 12.2 | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 |
| 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) | 7.7 | 7.5 | 7.3 | 9.0 | 8.8 | 8.5 | 8.8 | 8.2 | 8.6 | 8.7 | 8.5 | 8.4 |
| Precipitation (mm) | 364 | 450 | 617 | 280 | 265 | 264 | 224 | 322 | 240 | 426 | 382 | 426 |
| Sunny days | 0 | 0 | 1 | 2 | 1 | 1 | 7 | 0 | 4 | 2 | 0 | 0 |
| Rainy days | 31 | 28 | 30 | 28 | 30 | 29 | 24 | 31 | 26 | 29 | 30 | 31 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Gerayau is at