Average annual temperature is 16.4 °C
Absolute maximum temperature: 24.8 °C
Absolute minimum temperature: 9.1 °C
Number of sunny days: 12 days
Number of rainy days: 353 days
Look at detailed online map of Aru
* Weather data for Aru 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) | 24.6 | 23.0 | 23.4 | 24.8 | 24.5 | 24.1 | 24.0 | 22.0 | 24.2 | 23.5 | 24.6 | 24.4 |
| Average daytime temperature (°C) | 21.7 | 21.0 | 21.6 | 21.3 | 21.0 | 21.2 | 20.7 | 19.8 | 20.1 | 21.2 | 22.0 | 22.3 |
| Average temperature (°C) | 16.6 | 16.6 | 16.3 | 16.3 | 16.7 | 16.6 | 16.3 | 15.9 | 16.1 | 16.1 | 16.5 | 16.9 |
| Average night temperature (°C) | 13.0 | 13.7 | 12.7 | 12.8 | 14.0 | 13.4 | 13.3 | 13.5 | 13.5 | 12.4 | 12.2 | 13.0 |
| Absolute minimum temperature (°C) | 11.3 | 11.8 | 11.1 | 10.8 | 12.4 | 11.2 | 10.7 | 10.1 | 10.9 | 9.1 | 9.5 | 11.5 |
| 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) | 7.9 | 6.6 | 7.7 | 6.8 | 5.4 | 7.3 | 6.9 | 6.6 | 5.9 | 7.3 | 8.8 | 8.5 |
| Precipitation (mm) | 372 | 198 | 373 | 395 | 513 | 417 | 347 | 330 | 590 | 499 | 302 | 258 |
| Sunny days | 1 | 1 | 0 | 0 | 0 | 2 | 0 | 1 | 0 | 3 | 4 | 0 |
| Rainy days | 30 | 27 | 31 | 30 | 31 | 28 | 31 | 30 | 30 | 28 | 26 | 31 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Aru is at