Average annual temperature is 25.6 °C
Absolute maximum temperature: 35.1 °C
Absolute minimum temperature: 19.9 °C
Number of sunny days: 21 days
Number of rainy days: 344 days
Look at detailed online map of Opka
* Weather data for Opka 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) | 35.1 | 33.1 | 33.0 | 33.0 | 32.8 | 32.3 | 31.7 | 32.0 | 32.5 | 34.5 | 33.2 | 33.6 |
| Average daytime temperature (°C) | 31.4 | 31.4 | 30.8 | 30.4 | 29.6 | 29.8 | 29.8 | 29.7 | 29.7 | 31.5 | 31.2 | 32.1 |
| Average temperature (°C) | 26.2 | 26.0 | 25.6 | 25.5 | 25.3 | 25.4 | 25.2 | 25.1 | 25.1 | 25.9 | 26.0 | 26.5 |
| Average night temperature (°C) | 23.1 | 23.0 | 22.8 | 22.9 | 23.0 | 23.0 | 22.7 | 22.1 | 22.3 | 22.6 | 22.9 | 23.4 |
| Absolute minimum temperature (°C) | 22.3 | 22.3 | 21.8 | 22.3 | 21.9 | 22.2 | 21.5 | 21.0 | 19.9 | 20.4 | 22.1 | 22.4 |
| 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 | 11.9 | 11.8 | 11.8 | 11.9 | 12.1 | 12.2 | 12.4 | 12.4 |
| 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) | 8.8 | 8.4 | 8.3 | 7.5 | 6.1 | 6.3 | 6.3 | 6.8 | 6.5 | 8.0 | 7.9 | 9.2 |
| Precipitation (mm) | 441 | 346 | 516 | 694 | 659 | 376 | 397 | 207 | 426 | 384 | 454 | 487 |
| Sunny days | 3 | 1 | 0 | 1 | 2 | 0 | 0 | 1 | 5 | 5 | 3 | 0 |
| Rainy days | 28 | 27 | 31 | 29 | 29 | 30 | 31 | 30 | 25 | 26 | 27 | 31 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Opka is at