Average annual temperature is 11.2 °C
Absolute maximum temperature: 18.9 °C
Absolute minimum temperature: 2.3 °C
Number of sunny days: 19 days
Number of rainy days: 346 days
Look at detailed online map of Ilai
* Weather data for Ilai 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) | 17.1 | 16.9 | 17.2 | 17.6 | 17.3 | 17.1 | 17.1 | 15.8 | 17.1 | 16.0 | 18.9 | 17.2 |
| Average daytime temperature (°C) | 15.0 | 14.6 | 14.8 | 15.3 | 14.9 | 14.9 | 14.4 | 13.8 | 14.8 | 14.5 | 15.8 | 15.9 |
| Average temperature (°C) | 11.3 | 11.0 | 11.0 | 11.6 | 11.7 | 11.6 | 10.7 | 10.3 | 10.8 | 11.2 | 11.2 | 11.6 |
| Average night temperature (°C) | 8.1 | 8.4 | 7.7 | 8.1 | 9.0 | 8.9 | 7.6 | 7.7 | 7.7 | 8.2 | 7.1 | 8.1 |
| Absolute minimum temperature (°C) | 6.0 | 7.2 | 4.6 | 5.2 | 5.3 | 5.6 | 3.7 | 3.6 | 2.3 | 4.6 | 3.1 | 5.3 |
| 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) | 12.5 | 12.4 | 12.1 | 11.9 | 11.7 | 11.6 | 11.7 | 11.8 | 12.1 | 12.3 | 12.5 | 12.6 |
| 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) | 7.1 | 5.3 | 7.6 | 8.1 | 5.7 | 7.3 | 8.1 | 8.7 | 8.9 | 7.9 | 9.6 | 9.8 |
| Precipitation (mm) | 262 | 378 | 418 | 329 | 600 | 254 | 117 | 182 | 271 | 484 | 246 | 234 |
| Sunny days | 0 | 1 | 0 | 2 | 1 | 1 | 5 | 2 | 1 | 1 | 3 | 2 |
| Rainy days | 31 | 27 | 31 | 28 | 30 | 29 | 26 | 29 | 29 | 30 | 27 | 29 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Ilai during the most sunny months:
The largest precipitation sum in Ilai is at