Average annual temperature is 13.6 °C
Absolute maximum temperature: 19.9 °C
Absolute minimum temperature: 6.3 °C
Number of sunny days: 2 days
Number of rainy days: 363 days
Look at detailed online map of Heroane
* Weather data for Heroane 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) | 18.7 | 18.6 | 18.9 | 19.1 | 18.8 | 19.9 | 19.2 | 17.2 | 19.0 | 18.6 | 19.5 | 19.2 |
| Average daytime temperature (°C) | 17.2 | 16.9 | 17.2 | 17.1 | 16.8 | 16.5 | 15.9 | 14.9 | 15.7 | 16.6 | 17.3 | 17.6 |
| Average temperature (°C) | 14.1 | 14.2 | 14.0 | 14.0 | 14.0 | 13.5 | 13.0 | 12.2 | 12.8 | 13.1 | 13.7 | 14.4 |
| Average night temperature (°C) | 11.5 | 12.3 | 11.5 | 11.6 | 11.9 | 11.3 | 10.8 | 10.5 | 10.8 | 10.7 | 10.7 | 11.8 |
| Absolute minimum temperature (°C) | 9.7 | 11.2 | 9.4 | 10.3 | 10.3 | 9.2 | 9.4 | 6.3 | 7.5 | 8.0 | 9.2 | 10.5 |
| 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) | 12.5 | 12.3 | 12.1 | 12.0 | 11.8 | 11.7 | 11.8 | 11.9 | 12.1 | 12.3 | 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) | 8.1 | 7.2 | 8.4 | 7.5 | 5.7 | 6.4 | 7.0 | 5.5 | 6.2 | 7.1 | 8.8 | 8.7 |
| Precipitation (mm) | 358 | 296 | 409 | 455 | 485 | 445 | 328 | 366 | 516 | 522 | 380 | 403 |
| Sunny days | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 1 | 0 |
| Rainy days | 31 | 28 | 31 | 30 | 31 | 29 | 31 | 31 | 30 | 31 | 29 | 31 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Heroane is at