Average annual temperature is 24.1 °C
Absolute maximum temperature: 30.9 °C
Absolute minimum temperature: 19.0 °C
Number of sunny days: 12 days
Number of rainy days: 353 days
Look at detailed online map of Posei
* Weather data for Posei 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) | 29.0 | 30.9 | 29.9 | 29.0 | 29.0 | 27.9 | 28.9 | 28.1 | 28.8 | 29.3 | 29.8 | 30.1 |
| Average daytime temperature (°C) | 27.5 | 27.9 | 27.8 | 27.5 | 27.2 | 26.7 | 27.1 | 26.4 | 27.0 | 27.9 | 27.8 | 28.6 |
| Average temperature (°C) | 24.4 | 24.5 | 24.3 | 24.1 | 24.1 | 23.6 | 23.6 | 23.2 | 23.5 | 24.2 | 24.4 | 24.9 |
| Average night temperature (°C) | 22.1 | 22.1 | 21.7 | 21.6 | 21.9 | 21.5 | 21.2 | 21.0 | 21.0 | 21.6 | 21.9 | 22.2 |
| Absolute minimum temperature (°C) | 20.2 | 20.5 | 20.7 | 20.9 | 20.7 | 19.4 | 19.1 | 19.4 | 19.0 | 20.5 | 20.5 | 20.7 |
| 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) | 12.5 | 12.4 | 12.1 | 11.9 | 11.8 | 11.7 | 11.7 | 11.9 | 12.1 | 12.3 | 12.5 | 12.6 |
| 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) | 7.6 | 7.9 | 8.5 | 8.8 | 7.2 | 8.2 | 8.8 | 9.2 | 9.3 | 10.0 | 9.9 | 9.8 |
| Precipitation (mm) | 261 | 346 | 290 | 286 | 246 | 113 | 274 | 204 | 175 | 386 | 279 | 293 |
| Sunny days | 0 | 0 | 0 | 2 | 0 | 1 | 2 | 2 | 3 | 0 | 0 | 2 |
| Rainy days | 31 | 28 | 31 | 28 | 31 | 29 | 29 | 29 | 27 | 31 | 30 | 29 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Posei is at