Average annual temperature is 20.6 °C
Absolute maximum temperature: 29.7 °C
Absolute minimum temperature: 14.2 °C
Number of sunny days: 2 days
Number of rainy days: 363 days
Look at detailed online map of Koiomkane
* Weather data for Koiomkane 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) | 29.1 | 29.0 | 29.6 | 29.4 | 28.9 | 28.3 | 29.7 | 27.3 | 28.9 | 28.7 | 29.3 | 29.7 |
| Average daytime temperature (°C) | 27.3 | 27.1 | 27.2 | 26.5 | 25.6 | 25.3 | 25.3 | 23.9 | 24.3 | 25.9 | 27.0 | 27.7 |
| Average temperature (°C) | 21.2 | 21.1 | 20.9 | 20.8 | 20.7 | 20.3 | 20.2 | 19.6 | 19.9 | 20.4 | 21.0 | 21.5 |
| Average night temperature (°C) | 17.9 | 18.0 | 17.7 | 17.9 | 18.1 | 17.7 | 17.6 | 17.2 | 17.6 | 17.4 | 17.7 | 18.2 |
| Absolute minimum temperature (°C) | 16.8 | 16.8 | 16.2 | 16.3 | 16.6 | 16.6 | 15.2 | 14.2 | 15.9 | 15.7 | 16.1 | 16.8 |
| 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) | 8.1 | 7.2 | 8.5 | 7.9 | 6.9 | 7.5 | 7.7 | 7.2 | 6.2 | 7.7 | 9.2 | 9.1 |
| Precipitation (mm) | 363 | 481 | 424 | 488 | 538 | 363 | 414 | 582 | 594 | 557 | 395 | 431 |
| Sunny days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 |
| Rainy days | 31 | 28 | 31 | 30 | 31 | 30 | 31 | 31 | 30 | 29 | 30 | 31 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Koiomkane is at