Average annual temperature is 26.5 °C
Absolute maximum temperature: 32.2 °C
Absolute minimum temperature: 22.4 °C
Number of sunny days: 2 days
Number of rainy days: 363 days
Look at detailed online map of Si’uniu
* Weather data for Si’uniu Samoa is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 30.2 | 30.5 | 30.7 | 31.1 | 30.7 | 30.5 | 30.1 | 30.7 | 30.3 | 30.8 | 32.2 | 31.1 |
| Average daytime temperature (°C) | 28.9 | 29.2 | 29.6 | 29.5 | 29.1 | 29.1 | 28.7 | 29.4 | 28.5 | 29.1 | 30.3 | 29.9 |
| Average temperature (°C) | 26.6 | 26.8 | 27.2 | 26.9 | 26.7 | 26.5 | 25.7 | 26.2 | 25.8 | 26.0 | 27.0 | 26.7 |
| Average night temperature (°C) | 25.0 | 25.2 | 25.5 | 25.1 | 25.0 | 24.7 | 23.7 | 23.9 | 23.9 | 24.1 | 24.5 | 24.6 |
| Absolute minimum temperature (°C) | 23.5 | 23.9 | 24.7 | 23.4 | 24.1 | 22.8 | 22.5 | 22.6 | 22.5 | 22.4 | 22.5 | 23.7 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 12.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 | 11.0 | 11.0 | 12.0 | 12.0 | 12.0 | 12.0 |
| Daylight mean duration (h) | 12.8 | 12.6 | 12.2 | 11.8 | 11.5 | 11.3 | 11.4 | 11.7 | 12.0 | 12.4 | 12.8 | 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) | 9.0 | 9.4 | 9.1 | 9.8 | 9.0 | 9.7 | 9.3 | 9.9 | 10.6 | 10.5 | 10.9 | 9.7 |
| Precipitation (mm) | 418 | 206 | 249 | 210 | 311 | 140 | 170 | 114 | 135 | 263 | 166 | 230 |
| Sunny days | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 0 |
| Rainy days | 31 | 28 | 31 | 30 | 31 | 30 | 30 | 30 | 30 | 31 | 30 | 31 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Si’uniu is at