Average annual temperature is 19.9 °C
Absolute maximum temperature: 27.3 °C
Absolute minimum temperature: 14.3 °C
Number of sunny days: 5 days
Number of rainy days: 360 days
Look at detailed online map of Mainuki
* Weather data for Mainuki 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) | 27.0 | 27.3 | 27.2 | 25.8 | 25.9 | 25.7 | 26.2 | 24.8 | 25.8 | 26.7 | 26.7 | 26.0 |
| Average daytime temperature (°C) | 25.2 | 25.0 | 24.4 | 24.5 | 24.1 | 24.0 | 23.2 | 23.0 | 23.5 | 24.6 | 24.3 | 24.8 |
| Average temperature (°C) | 20.4 | 20.4 | 20.1 | 19.9 | 20.2 | 19.7 | 19.5 | 19.2 | 19.4 | 20.0 | 19.9 | 20.3 |
| Average night temperature (°C) | 17.6 | 17.5 | 17.2 | 17.0 | 17.8 | 17.2 | 17.4 | 17.1 | 17.1 | 17.4 | 17.1 | 17.5 |
| Absolute minimum temperature (°C) | 15.1 | 16.2 | 15.8 | 14.3 | 16.1 | 15.8 | 16.2 | 16.0 | 15.2 | 16.0 | 15.0 | 15.1 |
| 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) | 9.8 | 8.4 | 7.9 | 8.9 | 7.3 | 8.2 | 6.6 | 6.7 | 7.5 | 8.5 | 8.4 | 8.9 |
| Precipitation (mm) | 231 | 213 | 256 | 248 | 338 | 315 | 319 | 425 | 457 | 326 | 309 | 296 |
| Sunny days | 1 | 1 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 1 | 0 |
| Rainy days | 30 | 27 | 31 | 29 | 31 | 29 | 31 | 31 | 30 | 31 | 29 | 31 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Mainuki is at