Average annual temperature is 24.1 °C
Absolute maximum temperature: 33.3 °C
Absolute minimum temperature: 18.8 °C
Number of sunny days: 26 days
Number of rainy days: 339 days
Look at detailed online map of Guiaro
* Weather data for Guiaro 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) | 33.3 | 31.9 | 31.9 | 31.4 | 32.7 | 31.3 | 31.1 | 30.1 | 31.1 | 32.5 | 32.3 | 32.8 |
| Average daytime temperature (°C) | 30.7 | 29.8 | 29.6 | 29.0 | 28.1 | 28.1 | 28.4 | 28.0 | 27.7 | 29.4 | 30.1 | 30.8 |
| Average temperature (°C) | 24.9 | 24.8 | 24.2 | 24.0 | 23.6 | 23.7 | 23.6 | 23.2 | 23.2 | 23.8 | 24.5 | 25.4 |
| Average night temperature (°C) | 21.3 | 21.4 | 20.8 | 21.0 | 21.2 | 21.3 | 21.2 | 20.5 | 20.8 | 21.1 | 21.4 | 22.0 |
| Absolute minimum temperature (°C) | 20.4 | 20.1 | 19.9 | 19.7 | 20.1 | 20.1 | 19.9 | 18.9 | 18.8 | 19.0 | 20.6 | 20.7 |
| 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 | 11.8 | 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) | 9.0 | 8.4 | 8.6 | 7.9 | 6.2 | 7.7 | 7.4 | 7.6 | 6.5 | 7.6 | 8.8 | 9.8 |
| Precipitation (mm) | 469 | 307 | 407 | 448 | 603 | 262 | 216 | 111 | 281 | 284 | 244 | 223 |
| Sunny days | 6 | 0 | 0 | 1 | 0 | 1 | 1 | 6 | 7 | 3 | 0 | 1 |
| Rainy days | 25 | 28 | 31 | 29 | 31 | 29 | 30 | 25 | 23 | 28 | 30 | 30 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Guiaro is at