Average annual temperature is 25.9 °C
Absolute maximum temperature: 32.0 °C
Absolute minimum temperature: 20.3 °C
Number of sunny days: 18 days
Number of rainy days: 347 days
Look at detailed online map of Boisi
* Weather data for Boisi 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) | 31.4 | 31.6 | 31.5 | 31.0 | 31.2 | 30.2 | 30.3 | 30.5 | 30.2 | 30.7 | 31.2 | 32.0 |
| Average daytime temperature (°C) | 29.0 | 29.2 | 29.6 | 29.3 | 28.9 | 28.4 | 28.4 | 27.8 | 28.3 | 29.6 | 29.6 | 30.2 |
| Average temperature (°C) | 26.4 | 26.3 | 26.4 | 26.0 | 25.9 | 25.3 | 25.2 | 24.9 | 25.1 | 26.1 | 26.2 | 26.7 |
| Average night temperature (°C) | 23.9 | 23.9 | 23.8 | 23.1 | 23.2 | 22.6 | 22.5 | 22.5 | 22.3 | 23.3 | 23.3 | 23.9 |
| Absolute minimum temperature (°C) | 21.9 | 22.2 | 21.6 | 21.8 | 21.9 | 21.1 | 20.3 | 20.8 | 20.7 | 21.7 | 22.0 | 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 | 11.0 | 12.0 | 12.0 | 12.0 | 12.0 |
| Daylight mean duration (h) | 12.5 | 12.3 | 12.1 | 11.9 | 11.8 | 11.7 | 11.8 | 11.9 | 12.1 | 12.3 | 12.4 | 12.5 |
| 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) | 8.2 | 8.1 | 8.6 | 8.8 | 7.3 | 8.0 | 8.1 | 8.6 | 8.4 | 10.0 | 10.5 | 10.0 |
| Precipitation (mm) | 200 | 236 | 123 | 368 | 468 | 325 | 331 | 203 | 198 | 323 | 198 | 208 |
| Sunny days | 2 | 1 | 0 | 1 | 1 | 1 | 3 | 1 | 1 | 2 | 1 | 4 |
| Rainy days | 29 | 27 | 31 | 29 | 30 | 29 | 28 | 30 | 29 | 29 | 29 | 27 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Boisi is at