Average annual temperature is 23.8 °C
Absolute maximum temperature: 30.2 °C
Absolute minimum temperature: 18.5 °C
Number of sunny days: 18 days
Number of rainy days: 347 days
Look at detailed online map of Goilanai
* Weather data for Goilanai 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 | 29.6 | 29.4 | 29.4 | 28.6 | 27.4 | 26.5 | 25.8 | 27.2 | 28.6 | 29.3 | 30.2 |
| Average daytime temperature (°C) | 28.0 | 27.6 | 28.0 | 27.5 | 25.8 | 25.6 | 25.1 | 24.7 | 25.5 | 26.3 | 26.9 | 28.7 |
| Average temperature (°C) | 24.8 | 24.6 | 24.7 | 24.4 | 23.7 | 23.5 | 22.7 | 22.0 | 22.6 | 23.2 | 23.7 | 25.1 |
| Average night temperature (°C) | 22.9 | 22.6 | 22.6 | 22.1 | 22.1 | 21.9 | 21.1 | 20.1 | 20.6 | 21.4 | 21.5 | 22.8 |
| Absolute minimum temperature (°C) | 21.3 | 21.6 | 21.2 | 20.3 | 21.1 | 20.7 | 19.5 | 18.5 | 18.5 | 19.3 | 19.4 | 20.6 |
| 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) | 12.6 | 12.4 | 12.2 | 11.9 | 11.6 | 11.5 | 11.6 | 11.8 | 12.0 | 12.3 | 12.6 | 12.7 |
| 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) | 9.4 | 8.2 | 10.1 | 9.9 | 6.8 | 9.2 | 8.8 | 10.1 | 9.6 | 9.1 | 10.2 | 11.1 |
| Precipitation (mm) | 223 | 366 | 137 | 181 | 518 | 165 | 169 | 82 | 111 | 195 | 142 | 106 |
| Sunny days | 1 | 0 | 1 | 2 | 1 | 2 | 1 | 3 | 3 | 2 | 1 | 1 |
| Rainy days | 30 | 28 | 30 | 28 | 30 | 28 | 30 | 28 | 27 | 29 | 29 | 30 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Goilanai is at