Average annual temperature is 17.5 °C
Absolute maximum temperature: 31.5 °C
Absolute minimum temperature: 3.5 °C
Number of sunny days: 123 days
Number of rainy days: 242 days
Look at detailed online map of Atsimotanana
* Weather data for Atsimotanana 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) | 26.5 | 26.7 | 26.0 | 25.3 | 24.1 | 23.3 | 22.7 | 24.4 | 26.9 | 31.3 | 31.5 | 29.6 |
| Average daytime temperature (°C) | 24.0 | 24.7 | 24.5 | 23.7 | 21.9 | 20.4 | 19.1 | 20.4 | 23.3 | 27.6 | 25.8 | 27.0 |
| Average temperature (°C) | 19.1 | 19.1 | 18.9 | 18.0 | 16.3 | 14.2 | 13.7 | 14.9 | 16.2 | 19.8 | 19.3 | 20.4 |
| Average night temperature (°C) | 16.1 | 15.4 | 15.6 | 14.1 | 12.4 | 9.4 | 9.7 | 10.9 | 10.0 | 14.1 | 14.8 | 16.1 |
| Absolute minimum temperature (°C) | 13.7 | 13.3 | 13.8 | 11.1 | 9.8 | 3.5 | 7.5 | 8.6 | 7.6 | 9.0 | 12.6 | 13.4 |
| 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) | 13.2 | 12.8 | 12.2 | 11.6 | 11.1 | 10.9 | 11.0 | 11.4 | 12.0 | 12.6 | 13.1 | 13.3 |
| 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) | 7.4 | 9.1 | 9.4 | 9.6 | 9.5 | 9.5 | 9.0 | 9.2 | 11.1 | 11.2 | 10.9 | 10.9 |
| Precipitation (mm) | 404 | 200 | 258 | 82 | 26 | 1 | 13 | 37 | 1 | 52 | 65 | 200 |
| Sunny days | 2 | 4 | 0 | 6 | 13 | 23 | 12 | 11 | 27 | 13 | 6 | 6 |
| Rainy days | 29 | 24 | 31 | 24 | 18 | 7 | 19 | 20 | 3 | 18 | 24 | 25 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Atsimotanana is at