Average annual temperature is 25.4 °C
Absolute maximum temperature: 33.4 °C
Absolute minimum temperature: 16.6 °C
Number of sunny days: 299 days
Number of rainy days: 66 days
Look at detailed online map of Alcatraz
* Weather data for Alcatraz Cape Verde is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 28.6 | 26.3 | 30.9 | 32.9 | 30.1 | 31.0 | 32.7 | 32.6 | 32.3 | 33.4 | 33.0 | 31.4 |
| Average daytime temperature (°C) | 26.6 | 24.5 | 27.6 | 27.9 | 28.1 | 29.5 | 30.9 | 30.8 | 30.6 | 32.1 | 30.7 | 28.9 |
| Average temperature (°C) | 23.3 | 21.6 | 23.3 | 24.1 | 24.6 | 25.8 | 27.1 | 27.5 | 27.6 | 28.2 | 26.6 | 24.8 |
| Average night temperature (°C) | 21.0 | 19.7 | 20.3 | 21.5 | 22.2 | 23.0 | 24.4 | 24.9 | 25.4 | 25.2 | 23.7 | 22.0 |
| Absolute minimum temperature (°C) | 16.6 | 18.3 | 17.5 | 18.8 | 21.4 | 21.6 | 21.2 | 23.8 | 24.1 | 23.3 | 20.0 | 18.4 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 11.0 | 11.0 | 12.0 | 12.0 | 12.0 | 13.0 | 13.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 |
| Daylight mean duration (h) | 11.3 | 11.6 | 12.1 | 12.5 | 12.8 | 13.0 | 12.9 | 12.6 | 12.2 | 11.8 | 11.4 | 11.2 |
| Daylight minimum duration (h) | 11.0 | 11.0 | 11.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 |
| Sunshine mean duration (h) | 9.4 | 10.1 | 10.9 | 10.8 | 10.9 | 11.1 | 10.7 | 10.1 | 10.2 | 10.7 | 10.0 | 10.0 |
| Precipitation (mm) | 0 | 11 | 1 | 0 | 0 | 0 | 17 | 107 | 78 | 1 | 0 | 0 |
| Sunny days | 31 | 23 | 30 | 29 | 31 | 27 | 15 | 14 | 14 | 27 | 28 | 30 |
| Rainy days | 0 | 5 | 1 | 1 | 0 | 3 | 16 | 17 | 16 | 4 | 2 | 1 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Alcatraz is at