Average annual temperature is 22.2 °C
Absolute maximum temperature: 42.1 °C
Absolute minimum temperature: 1.1 °C
Number of sunny days: 289 days
Number of rainy days: 76 days
Look at detailed online map of Galveston
* Weather data for Galveston Mexico is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 28.4 | 33.3 | 33.8 | 35.4 | 36.9 | 42.1 | 39.7 | 40.8 | 39.0 | 32.9 | 31.9 | 28.3 |
| Average daytime temperature (°C) | 23.0 | 24.9 | 28.8 | 30.5 | 31.8 | 38.0 | 35.6 | 36.8 | 35.1 | 27.1 | 22.0 | 20.4 |
| Average temperature (°C) | 15.1 | 16.0 | 19.8 | 22.2 | 24.7 | 30.6 | 28.9 | 29.5 | 28.0 | 21.3 | 15.9 | 14.1 |
| Average night temperature (°C) | 8.9 | 9.9 | 13.2 | 15.3 | 18.5 | 23.3 | 22.9 | 23.0 | 21.7 | 17.0 | 11.9 | 9.7 |
| Absolute minimum temperature (°C) | 1.1 | 2.0 | 1.5 | 11.1 | 15.9 | 18.8 | 20.3 | 19.9 | 18.9 | 4.5 | 4.1 | 4.1 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 10.0 | 11.0 | 12.0 | 13.0 | 13.0 | 13.0 | 13.0 | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 |
| Daylight mean duration (h) | 10.6 | 11.2 | 12.0 | 12.8 | 13.5 | 13.8 | 13.7 | 13.1 | 12.3 | 11.5 | 10.8 | 10.5 |
| Daylight minimum duration (h) | 10.0 | 10.0 | 11.0 | 12.0 | 13.0 | 13.0 | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 | 10.0 |
| Sunshine mean duration (h) | 9.7 | 9.7 | 10.0 | 11.3 | 11.3 | 12.6 | 11.9 | 11.7 | 11.2 | 8.3 | 7.6 | 8.8 |
| Precipitation (mm) | 0 | 0 | 9 | 5 | 33 | 7 | 37 | 3 | 2 | 62 | 21 | 11 |
| Sunny days | 30 | 28 | 24 | 29 | 17 | 26 | 22 | 25 | 24 | 16 | 22 | 26 |
| Rainy days | 1 | 0 | 7 | 1 | 14 | 4 | 9 | 6 | 6 | 15 | 8 | 5 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Galveston is at