Average annual temperature is 27.5 °C
Absolute maximum temperature: 29.9 °C
Absolute minimum temperature: 24.1 °C
Number of sunny days: 37 days
Number of rainy days: 328 days
Look at detailed online map of Siaina
* Weather data for Siaina Wallis and Futuna is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 29.5 | 29.4 | 29.5 | 29.9 | 29.4 | 29.3 | 28.9 | 29.1 | 28.7 | 28.8 | 29.7 | 29.6 |
| Average daytime temperature (°C) | 28.0 | 28.5 | 28.6 | 28.5 | 28.7 | 28.3 | 28.0 | 28.1 | 28.0 | 27.8 | 29.0 | 28.7 |
| Average temperature (°C) | 27.1 | 27.5 | 27.7 | 27.6 | 27.6 | 27.4 | 27.3 | 27.4 | 27.5 | 27.1 | 28.2 | 27.8 |
| Average night temperature (°C) | 26.0 | 26.2 | 26.6 | 26.1 | 26.3 | 26.4 | 26.3 | 26.6 | 26.7 | 26.1 | 27.0 | 26.5 |
| Absolute minimum temperature (°C) | 24.4 | 24.8 | 24.2 | 25.1 | 24.3 | 24.1 | 24.5 | 24.8 | 25.3 | 24.5 | 25.4 | 25.0 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 12.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 | 11.0 | 11.0 | 12.0 | 12.0 | 12.0 | 12.0 |
| Daylight mean duration (h) | 12.8 | 12.5 | 12.2 | 11.8 | 11.5 | 11.4 | 11.4 | 11.7 | 12.0 | 12.4 | 12.7 | 12.9 |
| Daylight minimum duration (h) | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 | 11.0 | 11.0 | 11.0 | 11.0 | 12.0 | 12.0 | 12.0 |
| Sunshine mean duration (h) | 8.9 | 9.7 | 8.8 | 9.9 | 9.4 | 9.7 | 9.7 | 9.9 | 11.1 | 10.5 | 11.1 | 10.6 |
| Precipitation (mm) | 574 | 318 | 361 | 179 | 226 | 196 | 256 | 219 | 47 | 162 | 134 | 302 |
| Sunny days | 2 | 3 | 4 | 0 | 2 | 5 | 4 | 4 | 7 | 4 | 1 | 1 |
| Rainy days | 29 | 25 | 27 | 30 | 29 | 25 | 27 | 27 | 23 | 27 | 29 | 30 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Siaina is at