Average annual temperature is 19.0 °C
Absolute maximum temperature: 27.5 °C
Absolute minimum temperature: 11.3 °C
Number of sunny days: 14 days
Number of rainy days: 351 days
Look at detailed online map of Oinama
* Weather data for Oinama 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) | 25.9 | 26.5 | 26.5 | 26.1 | 26.5 | 25.3 | 25.8 | 24.3 | 26.2 | 26.5 | 27.3 | 27.5 |
| Average daytime temperature (°C) | 24.1 | 23.9 | 24.1 | 24.0 | 23.6 | 23.3 | 23.0 | 22.0 | 23.1 | 23.7 | 24.5 | 24.7 |
| Average temperature (°C) | 19.3 | 19.4 | 19.2 | 19.2 | 19.3 | 18.9 | 18.6 | 18.2 | 18.6 | 18.8 | 19.3 | 19.8 |
| Average night temperature (°C) | 15.8 | 16.6 | 15.7 | 15.9 | 16.5 | 15.7 | 15.5 | 15.9 | 15.5 | 15.6 | 15.7 | 16.5 |
| Absolute minimum temperature (°C) | 14.5 | 14.2 | 14.1 | 14.1 | 14.3 | 11.3 | 13.4 | 12.3 | 12.9 | 11.8 | 11.9 | 14.4 |
| 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) | 8.2 | 7.1 | 8.6 | 8.0 | 6.9 | 8.3 | 8.6 | 8.1 | 8.4 | 8.5 | 9.5 | 9.2 |
| Precipitation (mm) | 242 | 275 | 342 | 333 | 275 | 268 | 179 | 185 | 336 | 302 | 235 | 280 |
| Sunny days | 0 | 0 | 0 | 0 | 0 | 3 | 2 | 2 | 1 | 3 | 2 | 1 |
| Rainy days | 31 | 28 | 31 | 30 | 31 | 27 | 29 | 29 | 29 | 28 | 28 | 30 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Oinama is at