Average annual temperature is 24.8 °C
Absolute maximum temperature: 34.2 °C
Absolute minimum temperature: 19.3 °C
Number of sunny days: 13 days
Number of rainy days: 352 days
Look at detailed online map of Grumepu
* Weather data for Grumepu 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) | 34.2 | 32.3 | 32.6 | 31.8 | 32.3 | 30.9 | 31.0 | 31.2 | 31.2 | 33.5 | 32.6 | 33.5 |
| Average daytime temperature (°C) | 30.8 | 30.5 | 30.2 | 29.7 | 29.1 | 28.9 | 29.0 | 28.9 | 28.7 | 30.5 | 30.4 | 31.2 |
| Average temperature (°C) | 25.5 | 25.2 | 24.8 | 24.7 | 24.5 | 24.4 | 24.3 | 24.2 | 24.2 | 25.0 | 25.2 | 25.7 |
| Average night temperature (°C) | 22.3 | 22.3 | 21.9 | 22.0 | 22.2 | 22.1 | 21.9 | 21.2 | 21.5 | 21.9 | 22.2 | 22.7 |
| Absolute minimum temperature (°C) | 21.4 | 21.1 | 21.3 | 21.4 | 20.8 | 21.4 | 20.9 | 20.2 | 19.3 | 19.4 | 21.2 | 21.7 |
| 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 | 11.9 | 11.8 | 11.8 | 11.9 | 12.1 | 12.2 | 12.4 | 12.4 |
| Daylight minimum duration (h) | 12.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 | 11.0 | 11.0 | 12.0 | 12.0 | 12.0 | 12.0 |
| Sunshine mean duration (h) | 9.0 | 8.5 | 8.5 | 7.7 | 6.6 | 6.7 | 6.6 | 7.0 | 6.7 | 8.1 | 8.3 | 9.2 |
| Precipitation (mm) | 354 | 432 | 482 | 680 | 702 | 414 | 448 | 319 | 469 | 341 | 454 | 512 |
| Sunny days | 2 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 5 | 4 | 1 | 0 |
| Rainy days | 29 | 28 | 31 | 29 | 31 | 30 | 31 | 31 | 25 | 27 | 29 | 31 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Grumepu is at