Average annual temperature is 25.7 °C
Absolute maximum temperature: 31.7 °C
Absolute minimum temperature: 21.3 °C
Number of sunny days: 11 days
Number of rainy days: 354 days
Look at detailed online map of Koilonambo
* Weather data for Koilonambo Solomon Islands is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 31.3 | 31.7 | 31.0 | 30.3 | 30.5 | 30.0 | 30.3 | 29.1 | 30.5 | 30.3 | 30.6 | 30.9 |
| Average daytime temperature (°C) | 29.4 | 29.6 | 29.1 | 29.4 | 29.3 | 29.0 | 28.4 | 27.8 | 28.9 | 29.2 | 29.1 | 29.2 |
| Average temperature (°C) | 25.8 | 26.3 | 25.8 | 25.8 | 26.0 | 25.8 | 25.2 | 24.8 | 25.5 | 25.8 | 25.8 | 26.1 |
| Average night temperature (°C) | 23.7 | 24.1 | 23.5 | 23.4 | 23.9 | 23.7 | 23.2 | 23.1 | 23.0 | 23.4 | 23.6 | 23.8 |
| Absolute minimum temperature (°C) | 22.6 | 22.8 | 22.4 | 22.2 | 22.7 | 22.9 | 21.4 | 21.7 | 22.1 | 22.1 | 22.7 | 21.3 |
| 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) | 12.6 | 12.4 | 12.2 | 11.9 | 11.7 | 11.6 | 11.6 | 11.8 | 12.0 | 12.3 | 12.5 | 12.7 |
| 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) | 7.7 | 9.0 | 8.3 | 9.9 | 8.7 | 9.6 | 8.0 | 8.0 | 9.6 | 9.5 | 8.7 | 9.4 |
| Precipitation (mm) | 376 | 274 | 455 | 317 | 282 | 223 | 384 | 396 | 244 | 315 | 321 | 420 |
| Sunny days | 1 | 1 | 1 | 2 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 4 |
| Rainy days | 30 | 27 | 30 | 28 | 31 | 30 | 30 | 31 | 29 | 31 | 30 | 27 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Koilonambo is at