Average annual temperature is 12.9 °C
Absolute maximum temperature: 21.5 °C
Absolute minimum temperature: 4.7 °C
Number of sunny days: 18 days
Number of rainy days: 347 days
Look at detailed online map of Ongonma
* Weather data for Ongonma 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 | 20.0 | 20.6 | 20.4 | 20.8 | 19.9 | 19.4 | 18.5 | 20.2 | 19.6 | 20.6 | 21.1 |
| Average daytime temperature (°C) | 18.0 | 18.0 | 18.1 | 18.2 | 17.8 | 17.8 | 17.3 | 16.5 | 17.4 | 17.9 | 18.5 | 18.8 |
| Average temperature (°C) | 13.1 | 13.2 | 12.9 | 13.0 | 13.3 | 12.7 | 12.7 | 12.1 | 12.5 | 12.6 | 13.1 | 13.6 |
| Average night temperature (°C) | 9.6 | 10.1 | 9.4 | 9.6 | 10.2 | 9.3 | 9.7 | 9.2 | 9.3 | 8.9 | 9.2 | 10.0 |
| Absolute minimum temperature (°C) | 8.1 | 8.4 | 7.3 | 8.0 | 8.5 | 5.4 | 6.9 | 4.7 | 4.8 | 6.8 | 5.9 | 7.8 |
| 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) | 8.3 | 7.3 | 8.4 | 8.4 | 7.0 | 8.8 | 9.0 | 9.2 | 8.9 | 9.1 | 9.8 | 9.1 |
| Precipitation (mm) | 257 | 320 | 382 | 317 | 321 | 207 | 150 | 201 | 288 | 358 | 298 | 377 |
| Sunny days | 0 | 0 | 0 | 0 | 0 | 2 | 2 | 3 | 2 | 5 | 3 | 1 |
| Rainy days | 31 | 28 | 31 | 30 | 31 | 28 | 29 | 28 | 28 | 26 | 27 | 30 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Ongonma is at