Average annual temperature is 26.0 °C
Absolute maximum temperature: 34.4 °C
Absolute minimum temperature: 19.1 °C
Number of sunny days: 42 days
Number of rainy days: 323 days
Look at detailed online map of Ianu
* Weather data for Ianu 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) | 34.4 | 32.9 | 32.6 | 31.2 | 30.3 | 29.3 | 29.0 | 27.3 | 28.9 | 28.9 | 31.1 | 31.6 |
| Average daytime temperature (°C) | 31.1 | 30.8 | 30.1 | 29.7 | 28.2 | 27.6 | 27.1 | 26.1 | 26.9 | 27.5 | 28.5 | 30.4 |
| Average temperature (°C) | 27.8 | 27.2 | 27.0 | 26.6 | 26.0 | 25.7 | 24.9 | 23.9 | 24.7 | 25.3 | 26.0 | 27.2 |
| Average night temperature (°C) | 25.2 | 24.8 | 24.4 | 24.4 | 24.6 | 24.0 | 23.2 | 22.0 | 22.9 | 23.7 | 23.8 | 24.6 |
| Absolute minimum temperature (°C) | 23.7 | 23.4 | 23.3 | 23.4 | 23.1 | 22.3 | 20.3 | 19.8 | 19.1 | 20.8 | 20.6 | 23.5 |
| 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 | 11.5 | 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) | 10.1 | 8.8 | 9.9 | 9.6 | 7.2 | 9.0 | 8.9 | 9.4 | 9.2 | 9.0 | 10.7 | 11.0 |
| Precipitation (mm) | 117 | 241 | 184 | 191 | 576 | 108 | 151 | 99 | 199 | 424 | 58 | 160 |
| Sunny days | 7 | 2 | 5 | 0 | 0 | 3 | 5 | 3 | 5 | 2 | 8 | 2 |
| Rainy days | 24 | 26 | 26 | 30 | 31 | 27 | 26 | 28 | 25 | 29 | 22 | 29 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Ianu is at