Average annual temperature is 27.9 °C
Absolute maximum temperature: 36.4 °C
Absolute minimum temperature: 17.6 °C
Number of sunny days: 190 days
Number of rainy days: 175 days
Look at detailed online map of San Juan Piedras Negras
* Weather data for San Juan Piedras Negras 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) | 32.3 | 33.2 | 32.4 | 32.7 | 34.4 | 33.6 | 35.0 | 36.4 | 35.1 | 34.9 | 33.6 | 34.5 |
| Average daytime temperature (°C) | 30.3 | 31.0 | 30.9 | 31.6 | 33.0 | 32.2 | 33.0 | 33.3 | 33.6 | 32.1 | 32.4 | 32.0 |
| Average temperature (°C) | 26.3 | 26.9 | 27.3 | 28.3 | 29.5 | 29.0 | 28.4 | 28.6 | 28.7 | 27.8 | 27.7 | 26.4 |
| Average night temperature (°C) | 22.8 | 23.0 | 23.8 | 25.2 | 26.2 | 26.0 | 24.4 | 24.6 | 24.6 | 24.4 | 23.8 | 21.5 |
| Absolute minimum temperature (°C) | 21.3 | 21.1 | 22.1 | 23.9 | 24.4 | 23.6 | 23.3 | 23.4 | 22.9 | 21.4 | 22.3 | 17.6 |
| 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 | 12.9 | 13.0 | 13.0 | 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) | 10.5 | 10.8 | 11.0 | 11.2 | 11.5 | 10.7 | 10.5 | 10.3 | 10.6 | 9.8 | 10.4 | 10.2 |
| Precipitation (mm) | 4 | 0 | 2 | 2 | 18 | 102 | 119 | 88 | 51 | 70 | 30 | 11 |
| Sunny days | 27 | 27 | 27 | 25 | 19 | 3 | 5 | 7 | 11 | 8 | 9 | 22 |
| Rainy days | 4 | 1 | 4 | 5 | 12 | 27 | 26 | 24 | 19 | 23 | 21 | 9 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in San Juan Piedras Negras is at