Average annual temperature is 23.0 °C
Absolute maximum temperature: 28.9 °C
Absolute minimum temperature: 18.3 °C
Number of sunny days: 5 days
Number of rainy days: 360 days
Look at detailed online map of Guadalcanal Province
* Weather data for Guadalcanal Province 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) | 28.1 | 28.2 | 28.4 | 27.7 | 27.4 | 27.3 | 26.8 | 26.7 | 28.1 | 28.2 | 28.1 | 28.9 |
| Average daytime temperature (°C) | 26.3 | 26.5 | 26.4 | 26.7 | 26.5 | 25.6 | 25.1 | 24.5 | 26.1 | 26.8 | 26.3 | 26.6 |
| Average temperature (°C) | 23.1 | 23.3 | 23.0 | 23.0 | 23.3 | 22.9 | 22.6 | 22.0 | 22.9 | 23.2 | 23.1 | 23.3 |
| Average night temperature (°C) | 20.9 | 21.1 | 20.7 | 20.5 | 21.3 | 21.2 | 21.2 | 20.7 | 21.0 | 21.0 | 21.1 | 20.9 |
| Absolute minimum temperature (°C) | 19.9 | 20.2 | 19.3 | 19.2 | 19.8 | 20.0 | 20.4 | 20.1 | 19.1 | 19.4 | 18.7 | 18.3 |
| 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 | 12.6 | 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) | 7.9 | 8.7 | 8.0 | 9.6 | 8.7 | 9.2 | 7.1 | 7.3 | 9.5 | 9.0 | 8.0 | 8.0 |
| Precipitation (mm) | 313 | 339 | 393 | 209 | 324 | 238 | 457 | 424 | 212 | 361 | 453 | 815 |
| Sunny days | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 4 | 0 | 0 | 0 |
| Rainy days | 31 | 28 | 31 | 30 | 30 | 30 | 31 | 31 | 26 | 31 | 30 | 31 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Guadalcanal Province is at