Average annual temperature is 25.9 °C
Absolute maximum temperature: 32.5 °C
Absolute minimum temperature: 18.5 °C
Number of sunny days: 35 days
Number of rainy days: 330 days
Look at detailed online map of Iwai
* Weather data for Iwai 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 | 31.8 | 32.2 | 31.8 | 30.6 | 30.0 | 29.6 | 30.2 | 31.4 | 31.6 | 31.6 | 32.5 |
| Average daytime temperature (°C) | 30.0 | 30.0 | 30.4 | 30.1 | 28.5 | 28.7 | 28.3 | 28.3 | 29.4 | 29.5 | 30.1 | 31.3 |
| Average temperature (°C) | 26.8 | 26.7 | 26.8 | 26.4 | 25.8 | 25.5 | 24.9 | 24.2 | 25.2 | 25.7 | 26.1 | 27.3 |
| Average night temperature (°C) | 24.6 | 24.3 | 24.3 | 23.7 | 23.7 | 23.3 | 22.7 | 21.1 | 22.5 | 23.1 | 23.3 | 24.4 |
| Absolute minimum temperature (°C) | 23.1 | 22.8 | 22.6 | 22.0 | 22.7 | 21.4 | 20.5 | 18.5 | 19.2 | 21.1 | 20.3 | 22.5 |
| 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 | 11.6 | 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) | 9.0 | 8.0 | 9.7 | 9.5 | 6.4 | 8.9 | 8.6 | 10.0 | 9.3 | 9.0 | 10.2 | 10.8 |
| Precipitation (mm) | 245 | 367 | 181 | 176 | 474 | 121 | 120 | 23 | 55 | 309 | 142 | 113 |
| Sunny days | 0 | 0 | 0 | 3 | 1 | 6 | 3 | 8 | 5 | 3 | 4 | 2 |
| Rainy days | 31 | 28 | 31 | 27 | 30 | 24 | 28 | 23 | 25 | 28 | 26 | 29 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Iwai is at