Average annual temperature is 22.2 °C
Absolute maximum temperature: 30.2 °C
Absolute minimum temperature: 16.9 °C
Number of sunny days: 16 days
Number of rainy days: 349 days
Look at detailed online map of Bona
* Weather data for Bona 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) | 30.0 | 29.8 | 29.3 | 28.6 | 28.7 | 28.0 | 27.7 | 28.2 | 28.1 | 29.2 | 29.3 | 30.2 |
| Average daytime temperature (°C) | 27.7 | 27.0 | 27.0 | 26.4 | 25.6 | 26.1 | 26.0 | 25.9 | 25.9 | 27.0 | 27.6 | 28.2 |
| Average temperature (°C) | 23.0 | 22.7 | 22.4 | 22.1 | 21.8 | 21.9 | 21.8 | 21.4 | 21.5 | 22.1 | 22.8 | 23.4 |
| Average night temperature (°C) | 20.2 | 20.0 | 19.8 | 19.5 | 19.9 | 19.7 | 19.5 | 18.8 | 19.1 | 19.6 | 20.0 | 20.5 |
| Absolute minimum temperature (°C) | 18.8 | 19.2 | 19.1 | 18.3 | 19.0 | 19.0 | 17.9 | 17.3 | 16.9 | 18.1 | 18.9 | 19.4 |
| 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) | 9.1 | 8.5 | 8.5 | 7.9 | 6.3 | 8.5 | 8.1 | 8.8 | 7.9 | 8.2 | 9.2 | 9.7 |
| Precipitation (mm) | 423 | 278 | 425 | 475 | 870 | 397 | 447 | 190 | 437 | 400 | 476 | 350 |
| Sunny days | 2 | 0 | 0 | 1 | 0 | 1 | 1 | 5 | 2 | 3 | 1 | 0 |
| Rainy days | 29 | 28 | 31 | 29 | 31 | 29 | 30 | 26 | 28 | 28 | 29 | 31 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Bona is at