Average annual temperature is 16.4 °C
Absolute maximum temperature: 25.0 °C
Absolute minimum temperature: 9.1 °C
Number of sunny days: 11 days
Number of rainy days: 354 days
Look at detailed online map of Riro
* Weather data for Riro 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) | 24.6 | 23.5 | 24.5 | 24.6 | 24.4 | 24.0 | 23.8 | 22.1 | 23.9 | 23.6 | 25.0 | 24.6 |
| Average daytime temperature (°C) | 21.9 | 21.5 | 22.0 | 21.5 | 21.0 | 21.0 | 20.7 | 19.7 | 20.0 | 21.4 | 22.3 | 22.6 |
| Average temperature (°C) | 16.7 | 16.7 | 16.3 | 16.3 | 16.6 | 16.6 | 16.3 | 15.7 | 16.0 | 16.1 | 16.7 | 16.9 |
| Average night temperature (°C) | 13.2 | 13.8 | 12.9 | 13.0 | 13.9 | 13.7 | 13.5 | 13.4 | 13.7 | 12.5 | 12.6 | 13.2 |
| Absolute minimum temperature (°C) | 11.6 | 11.5 | 11.1 | 11.1 | 12.5 | 11.4 | 11.8 | 10.4 | 11.1 | 9.2 | 9.1 | 11.9 |
| 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) | 7.8 | 6.8 | 7.6 | 6.8 | 5.5 | 7.0 | 6.9 | 6.2 | 5.7 | 7.1 | 8.8 | 8.4 |
| Precipitation (mm) | 328 | 226 | 325 | 407 | 442 | 421 | 273 | 358 | 544 | 524 | 301 | 301 |
| Sunny days | 1 | 1 | 1 | 0 | 0 | 1 | 0 | 1 | 0 | 4 | 2 | 0 |
| Rainy days | 30 | 27 | 30 | 30 | 31 | 29 | 31 | 30 | 30 | 27 | 28 | 31 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Riro is at