Average annual temperature is 25.8 °C
Absolute maximum temperature: 32.4 °C
Absolute minimum temperature: 21.4 °C
Number of sunny days: 13 days
Number of rainy days: 352 days
Look at detailed online map of Bougainville
* Weather data for Bougainville 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) | 31.9 | 32.4 | 30.8 | 30.6 | 32.1 | 31.1 | 31.5 | 30.1 | 30.5 | 30.9 | 30.6 | 30.5 |
| Average daytime temperature (°C) | 30.0 | 30.1 | 29.4 | 29.4 | 29.4 | 28.8 | 28.5 | 27.9 | 28.3 | 29.1 | 29.0 | 29.4 |
| Average temperature (°C) | 26.3 | 26.4 | 25.9 | 25.8 | 26.1 | 25.6 | 25.4 | 24.9 | 25.1 | 25.7 | 25.7 | 26.3 |
| Average night temperature (°C) | 23.4 | 23.8 | 23.3 | 23.1 | 23.8 | 23.3 | 23.6 | 23.1 | 23.1 | 23.3 | 23.3 | 24.0 |
| Absolute minimum temperature (°C) | 22.4 | 22.5 | 21.5 | 21.5 | 22.7 | 22.3 | 22.6 | 22.1 | 22.1 | 22.4 | 21.4 | 22.9 |
| 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) | 12.4 | 12.3 | 12.1 | 12.0 | 11.8 | 11.8 | 11.8 | 11.9 | 12.1 | 12.2 | 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) | 9.7 | 8.8 | 8.0 | 9.2 | 7.1 | 8.5 | 6.6 | 7.0 | 7.4 | 8.9 | 8.4 | 9.5 |
| Precipitation (mm) | 453 | 293 | 389 | 362 | 412 | 394 | 358 | 488 | 550 | 437 | 297 | 327 |
| Sunny days | 0 | 1 | 2 | 5 | 0 | 1 | 0 | 0 | 0 | 0 | 4 | 0 |
| Rainy days | 31 | 27 | 29 | 25 | 31 | 29 | 31 | 31 | 30 | 31 | 26 | 31 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Bougainville is at