Average annual temperature is 16.4 °C
Absolute maximum temperature: 31.2 °C
Absolute minimum temperature: 3.2 °C
Number of sunny days: 58 days
Number of rainy days: 307 days
Look at detailed online map of Riamboay
* Weather data for Riamboay Madagascar is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 27.3 | 26.0 | 25.8 | 24.8 | 23.9 | 22.5 | 21.8 | 23.1 | 25.4 | 31.2 | 31.2 | 29.5 |
| Average daytime temperature (°C) | 21.9 | 22.7 | 21.9 | 21.7 | 19.8 | 19.0 | 17.7 | 17.9 | 21.6 | 24.9 | 22.9 | 25.0 |
| Average temperature (°C) | 18.1 | 18.4 | 17.7 | 16.9 | 15.1 | 13.4 | 12.8 | 13.8 | 16.0 | 18.1 | 17.7 | 19.3 |
| Average night temperature (°C) | 15.8 | 15.5 | 15.1 | 13.5 | 11.7 | 9.1 | 8.7 | 10.9 | 11.8 | 13.6 | 14.0 | 15.4 |
| Absolute minimum temperature (°C) | 15.0 | 12.7 | 13.4 | 9.7 | 8.3 | 3.2 | 5.6 | 8.0 | 9.2 | 8.9 | 11.2 | 10.6 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 13.0 | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 | 11.0 | 11.0 | 12.0 | 12.0 | 13.0 | 13.0 |
| Daylight mean duration (h) | 13.4 | 12.9 | 12.2 | 11.6 | 11.0 | 10.7 | 10.9 | 11.3 | 12.0 | 12.6 | 13.2 | 13.5 |
| Daylight minimum duration (h) | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 | 10.0 | 10.0 | 11.0 | 11.0 | 12.0 | 12.0 | 13.0 |
| Sunshine mean duration (h) | 6.9 | 8.6 | 7.2 | 8.8 | 8.9 | 9.2 | 8.5 | 7.8 | 10.3 | 9.5 | 8.5 | 9.8 |
| Precipitation (mm) | 492 | 187 | 288 | 112 | 67 | 8 | 21 | 53 | 27 | 72 | 85 | 152 |
| Sunny days | 1 | 0 | 2 | 4 | 4 | 16 | 12 | 2 | 6 | 6 | 2 | 3 |
| Rainy days | 30 | 28 | 29 | 26 | 27 | 14 | 19 | 29 | 24 | 25 | 28 | 28 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Riamboay is at