Average annual temperature is 25.0 °C
Absolute maximum temperature: 32.6 °C
Absolute minimum temperature: 21.2 °C
Number of sunny days: 3 days
Number of rainy days: 362 days
Look at detailed online map of Nionganja
* Weather data for Nionganja 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) | 31.5 | 31.0 | 31.4 | 32.1 | 32.0 | 30.6 | 30.8 | 31.9 | 32.3 | 32.6 | 32.1 | 32.3 |
| Average daytime temperature (°C) | 28.7 | 28.3 | 29.5 | 28.5 | 29.0 | 28.5 | 29.1 | 29.9 | 30.1 | 29.7 | 30.1 | 29.4 |
| Average temperature (°C) | 24.9 | 24.7 | 25.1 | 24.7 | 25.0 | 24.8 | 24.9 | 25.2 | 25.4 | 25.1 | 25.5 | 25.3 |
| Average night temperature (°C) | 22.4 | 22.4 | 22.3 | 22.4 | 22.7 | 22.5 | 22.5 | 22.5 | 22.8 | 22.5 | 22.8 | 22.9 |
| Absolute minimum temperature (°C) | 21.2 | 21.5 | 21.6 | 21.7 | 22.0 | 21.2 | 21.4 | 21.6 | 21.4 | 21.7 | 21.8 | 22.1 |
| 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 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 |
| Daylight mean duration (h) | 12.3 | 12.2 | 12.1 | 12.0 | 12.0 | 11.9 | 11.9 | 12.0 | 12.1 | 12.2 | 12.3 | 12.3 |
| Daylight minimum 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 |
| Sunshine mean duration (h) | 8.4 | 6.2 | 8.1 | 7.2 | 7.8 | 8.4 | 9.0 | 9.9 | 9.4 | 9.1 | 9.5 | 7.9 |
| Precipitation (mm) | 296 | 480 | 260 | 329 | 368 | 236 | 266 | 164 | 194 | 298 | 278 | 444 |
| Sunny days | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 1 | 0 | 0 | 0 |
| Rainy days | 31 | 28 | 31 | 30 | 30 | 30 | 30 | 31 | 29 | 31 | 30 | 31 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Nionganja is at