Average annual temperature is 25.6 °C
Absolute maximum temperature: 34.8 °C
Absolute minimum temperature: 18.2 °C
Number of sunny days: 18 days
Number of rainy days: 347 days
Look at detailed online map of Opau
* Weather data for Opau 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) | 34.8 | 34.0 | 34.3 | 32.8 | 31.6 | 31.9 | 31.2 | 30.1 | 31.8 | 30.8 | 34.0 | 33.8 |
| Average daytime temperature (°C) | 31.6 | 31.5 | 31.2 | 30.8 | 29.5 | 29.1 | 28.7 | 28.1 | 28.5 | 29.2 | 30.9 | 31.6 |
| Average temperature (°C) | 26.7 | 26.4 | 26.2 | 25.8 | 25.4 | 25.2 | 25.0 | 24.3 | 24.6 | 25.1 | 25.9 | 26.8 |
| Average night temperature (°C) | 23.5 | 23.4 | 23.2 | 23.1 | 23.2 | 23.0 | 22.6 | 21.8 | 22.2 | 22.7 | 22.9 | 23.7 |
| Absolute minimum temperature (°C) | 21.8 | 22.5 | 21.7 | 22.1 | 22.0 | 22.2 | 20.4 | 18.5 | 18.2 | 21.4 | 20.6 | 22.1 |
| 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) | 12.5 | 12.4 | 12.1 | 11.9 | 11.8 | 11.7 | 11.7 | 11.9 | 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) | 8.8 | 7.8 | 8.7 | 8.8 | 6.7 | 7.8 | 8.4 | 9.0 | 8.4 | 8.1 | 9.5 | 9.4 |
| Precipitation (mm) | 238 | 306 | 361 | 382 | 433 | 331 | 220 | 201 | 282 | 473 | 282 | 236 |
| Sunny days | 5 | 1 | 2 | 0 | 0 | 0 | 4 | 2 | 3 | 1 | 0 | 0 |
| Rainy days | 26 | 27 | 29 | 30 | 31 | 30 | 27 | 29 | 27 | 30 | 30 | 31 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Opau is at