Average annual temperature is 14.8 °C
Absolute maximum temperature: 22.2 °C
Absolute minimum temperature: 7.6 °C
Number of sunny days: 11 days
Number of rainy days: 354 days
Look at detailed online map of Oiyana Number One
* Weather data for Oiyana Number One 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) | 21.5 | 22.1 | 21.3 | 20.8 | 21.7 | 21.1 | 20.7 | 21.2 | 21.5 | 21.8 | 22.0 | 22.2 |
| Average daytime temperature (°C) | 19.4 | 19.4 | 19.4 | 19.2 | 19.2 | 19.1 | 18.7 | 18.8 | 19.3 | 19.7 | 20.1 | 20.4 |
| Average temperature (°C) | 14.9 | 14.9 | 14.7 | 14.8 | 15.1 | 14.6 | 14.4 | 14.3 | 14.4 | 14.8 | 15.0 | 15.5 |
| Average night temperature (°C) | 12.0 | 12.4 | 11.7 | 12.0 | 12.8 | 11.8 | 11.8 | 12.0 | 11.4 | 12.0 | 11.7 | 12.5 |
| Absolute minimum temperature (°C) | 10.4 | 10.5 | 9.8 | 10.5 | 10.6 | 7.6 | 7.6 | 7.7 | 8.3 | 9.4 | 9.9 | 9.8 |
| 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) | 7.3 | 5.6 | 7.5 | 7.7 | 6.2 | 8.2 | 7.8 | 7.9 | 8.5 | 8.1 | 9.0 | 8.4 |
| Precipitation (mm) | 261 | 319 | 317 | 306 | 361 | 214 | 163 | 229 | 249 | 474 | 303 | 387 |
| Sunny days | 0 | 0 | 0 | 0 | 0 | 1 | 2 | 1 | 2 | 2 | 2 | 1 |
| Rainy days | 31 | 28 | 31 | 30 | 31 | 29 | 29 | 30 | 28 | 29 | 28 | 30 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Oiyana Number One is at