Average annual temperature is 18.7 °C
Absolute maximum temperature: 36.2 °C
Absolute minimum temperature: 0.1 °C
Number of sunny days: 267 days
Number of rainy days: 98 days
Look at detailed online map of Primero de Mayo (San Juan de Ulúa)
* Weather data for Primero de Mayo (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) | 24.8 | 27.7 | 29.1 | 31.3 | 31.0 | 36.2 | 31.6 | 33.0 | 31.6 | 29.2 | 27.7 | 21.3 |
| Average daytime temperature (°C) | 21.7 | 23.8 | 27.1 | 26.8 | 27.3 | 32.3 | 29.5 | 29.4 | 28.8 | 24.2 | 20.8 | 17.2 |
| Average temperature (°C) | 13.8 | 15.7 | 18.9 | 19.5 | 20.3 | 24.8 | 22.5 | 22.5 | 22.0 | 18.0 | 14.5 | 11.4 |
| Average night temperature (°C) | 7.1 | 8.5 | 10.9 | 12.2 | 13.7 | 16.7 | 15.5 | 15.8 | 15.0 | 12.5 | 9.3 | 6.5 |
| Absolute minimum temperature (°C) | 2.0 | 1.2 | 3.4 | 7.8 | 12.1 | 13.9 | 13.3 | 13.5 | 13.3 | 7.0 | 4.4 | 0.1 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 11.0 | 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) | 10.9 | 11.4 | 12.0 | 12.7 | 13.3 | 13.6 | 13.4 | 12.9 | 12.3 | 11.6 | 11.0 | 10.7 |
| Daylight minimum duration (h) | 10.0 | 11.0 | 11.0 | 12.0 | 13.0 | 13.0 | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 | 10.0 |
| Sunshine mean duration (h) | 9.9 | 10.2 | 11.2 | 11.3 | 11.5 | 12.5 | 12.2 | 11.6 | 11.1 | 9.3 | 8.5 | 7.7 |
| Precipitation (mm) | 0 | 0 | 2 | 8 | 38 | 1 | 16 | 5 | 34 | 52 | 70 | 6 |
| Sunny days | 30 | 26 | 28 | 21 | 18 | 26 | 19 | 18 | 21 | 18 | 19 | 23 |
| Rainy days | 1 | 2 | 3 | 9 | 13 | 4 | 12 | 13 | 9 | 13 | 11 | 8 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Primero de Mayo (San Juan de Ulúa) is at