Average annual temperature is 26.3 °C
Absolute maximum temperature: 34.6 °C
Absolute minimum temperature: 21.9 °C
Number of sunny days: 5 days
Number of rainy days: 360 days
Look at detailed online map of Old Buna
* Weather data for Old Buna 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) | 34.0 | 34.3 | 34.1 | 32.6 | 33.3 | 33.1 | 33.5 | 34.1 | 34.2 | 34.5 | 34.6 | 34.4 |
| Average daytime temperature (°C) | 31.3 | 31.0 | 31.6 | 29.9 | 30.9 | 30.9 | 31.2 | 31.7 | 31.7 | 31.9 | 31.9 | 30.9 |
| Average temperature (°C) | 26.2 | 26.0 | 26.2 | 25.7 | 26.4 | 26.2 | 26.3 | 26.3 | 26.3 | 26.5 | 26.7 | 26.2 |
| Average night temperature (°C) | 23.5 | 23.5 | 23.3 | 23.4 | 23.7 | 23.4 | 23.4 | 23.0 | 23.3 | 23.4 | 23.6 | 23.8 |
| Absolute minimum temperature (°C) | 22.7 | 22.7 | 22.7 | 22.6 | 22.8 | 22.6 | 22.6 | 21.9 | 22.7 | 22.8 | 22.9 | 23.2 |
| 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 | 11.9 | 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) | 8.3 | 7.1 | 7.7 | 6.6 | 7.5 | 8.7 | 8.6 | 9.2 | 9.0 | 8.8 | 8.9 | 7.1 |
| Precipitation (mm) | 542 | 669 | 712 | 622 | 652 | 357 | 361 | 480 | 617 | 538 | 575 | 852 |
| Sunny days | 0 | 0 | 1 | 0 | 0 | 3 | 0 | 1 | 0 | 0 | 0 | 0 |
| Rainy days | 31 | 28 | 30 | 30 | 31 | 27 | 31 | 30 | 30 | 31 | 30 | 31 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Old Buna is at