Average annual temperature is 26.6 °C
Absolute maximum temperature: 32.0 °C
Absolute minimum temperature: 22.4 °C
Number of sunny days: 15 days
Number of rainy days: 350 days
Look at detailed online map of Iaviau
* Weather data for Iaviau Papua New Guinea is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 31.8 | 31.5 | 32.0 | 31.1 | 30.4 | 29.3 | 28.7 | 27.7 | 28.3 | 29.1 | 29.9 | 31.2 |
| Average daytime temperature (°C) | 29.9 | 29.7 | 30.0 | 29.5 | 28.1 | 28.0 | 27.3 | 26.9 | 27.4 | 27.7 | 28.3 | 30.1 |
| Average temperature (°C) | 27.6 | 27.4 | 27.6 | 27.3 | 26.4 | 26.4 | 25.9 | 25.3 | 25.6 | 25.9 | 26.4 | 27.8 |
| Average night temperature (°C) | 25.9 | 25.5 | 25.7 | 25.3 | 24.7 | 25.0 | 24.5 | 24.0 | 24.2 | 24.5 | 24.7 | 26.2 |
| Absolute minimum temperature (°C) | 23.8 | 23.6 | 22.8 | 23.7 | 23.2 | 23.1 | 23.0 | 23.0 | 22.4 | 23.1 | 23.3 | 23.2 |
| 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 | 11.6 | 11.5 | 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) | 9.4 | 8.3 | 10.2 | 10.1 | 6.5 | 9.0 | 8.9 | 10.1 | 9.7 | 9.1 | 10.1 | 11.2 |
| Precipitation (mm) | 174 | 252 | 147 | 175 | 650 | 222 | 224 | 101 | 155 | 201 | 165 | 104 |
| Sunny days | 1 | 1 | 1 | 0 | 1 | 1 | 0 | 3 | 3 | 1 | 3 | 0 |
| Rainy days | 30 | 27 | 30 | 30 | 30 | 29 | 31 | 28 | 27 | 30 | 27 | 31 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Iaviau is at