Average annual temperature is 25.7 °C
Absolute maximum temperature: 33.2 °C
Absolute minimum temperature: 18.5 °C
Number of sunny days: 65 days
Number of rainy days: 300 days
Look at detailed online map of Idumava
* Weather data for Idumava 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) | 33.1 | 33.1 | 33.2 | 31.2 | 31.3 | 31.0 | 31.0 | 31.2 | 31.7 | 30.5 | 31.6 | 32.4 |
| Average daytime temperature (°C) | 30.9 | 30.5 | 30.3 | 29.9 | 28.7 | 29.2 | 29.1 | 29.2 | 29.9 | 28.7 | 29.9 | 31.1 |
| Average temperature (°C) | 26.6 | 26.2 | 25.9 | 25.5 | 25.4 | 25.4 | 25.2 | 24.8 | 25.4 | 25.1 | 25.8 | 26.7 |
| Average night temperature (°C) | 23.7 | 23.6 | 22.9 | 22.8 | 23.1 | 22.9 | 22.2 | 21.8 | 22.4 | 22.8 | 22.6 | 23.6 |
| Absolute minimum temperature (°C) | 22.3 | 21.6 | 20.3 | 21.9 | 21.8 | 20.1 | 19.5 | 18.9 | 18.5 | 20.6 | 18.9 | 21.8 |
| 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 | 11.6 | 11.6 | 11.8 | 12.1 | 12.3 | 12.5 | 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 | 8.7 | 9.0 | 9.3 | 7.2 | 9.4 | 9.6 | 10.3 | 10.1 | 9.3 | 10.5 | 10.5 |
| Precipitation (mm) | 142 | 354 | 200 | 225 | 438 | 81 | 73 | 56 | 94 | 281 | 124 | 181 |
| Sunny days | 7 | 2 | 3 | 1 | 3 | 10 | 8 | 15 | 10 | 3 | 3 | 0 |
| Rainy days | 24 | 26 | 28 | 29 | 28 | 20 | 23 | 16 | 20 | 28 | 27 | 31 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Idumava is at