Average annual temperature is 21.1 °C
Absolute maximum temperature: 35.8 °C
Absolute minimum temperature: 9.4 °C
Number of sunny days: 87 days
Number of rainy days: 278 days
Look at detailed online map of San Juan de Ulúa
* Weather data for San Juan de Ulúa 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) | 27.9 | 29.6 | 33.9 | 35.8 | 35.0 | 34.7 | 29.5 | 31.5 | 29.7 | 30.4 | 28.3 | 28.2 |
| Average daytime temperature (°C) | 24.4 | 24.7 | 28.8 | 31.0 | 30.9 | 31.2 | 27.5 | 28.4 | 28.0 | 26.8 | 24.2 | 22.4 |
| Average temperature (°C) | 18.3 | 18.6 | 21.3 | 22.8 | 23.5 | 24.2 | 21.8 | 22.1 | 21.7 | 21.2 | 20.0 | 17.9 |
| Average night temperature (°C) | 13.8 | 14.1 | 15.4 | 16.1 | 17.5 | 18.7 | 17.7 | 17.6 | 17.4 | 17.6 | 17.1 | 15.0 |
| Absolute minimum temperature (°C) | 9.6 | 10.1 | 12.9 | 12.5 | 15.7 | 16.6 | 16.3 | 15.9 | 16.5 | 14.4 | 14.0 | 9.4 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 11.0 | 11.0 | 12.0 | 12.0 | 13.0 | 13.0 | 13.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 |
| Daylight mean duration (h) | 11.2 | 11.6 | 12.0 | 12.5 | 12.9 | 13.1 | 13.0 | 12.7 | 12.2 | 11.8 | 11.3 | 11.1 |
| Daylight minimum duration (h) | 11.0 | 11.0 | 11.0 | 12.0 | 12.0 | 13.0 | 12.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 |
| Sunshine mean duration (h) | 9.2 | 9.0 | 10.6 | 11.1 | 11.1 | 11.1 | 10.1 | 10.6 | 10.1 | 8.7 | 7.5 | 7.2 |
| Precipitation (mm) | 52 | 60 | 52 | 57 | 57 | 102 | 156 | 145 | 151 | 132 | 123 | 105 |
| Sunny days | 15 | 11 | 13 | 13 | 8 | 8 | 1 | 3 | 0 | 1 | 5 | 9 |
| Rainy days | 16 | 17 | 18 | 17 | 23 | 22 | 30 | 28 | 30 | 30 | 25 | 22 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in San Juan de Ulúa is at