Average annual temperature is 27.0 °C
Absolute maximum temperature: 35.0 °C
Absolute minimum temperature: 21.4 °C
Number of sunny days: 26 days
Number of rainy days: 339 days
Look at detailed online map of San Marcos
* Weather data for San Marcos Brazil is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 31.1 | 30.4 | 30.4 | 31.8 | 31.8 | 32.6 | 33.2 | 34.1 | 35.0 | 35.0 | 34.0 | 33.0 |
| Average daytime temperature (°C) | 28.3 | 28.1 | 28.3 | 29.4 | 29.8 | 30.7 | 31.0 | 32.3 | 32.7 | 33.1 | 32.8 | 31.5 |
| Average temperature (°C) | 25.3 | 25.1 | 25.5 | 26.1 | 26.2 | 26.7 | 26.9 | 27.9 | 28.5 | 28.9 | 28.8 | 27.9 |
| Average night temperature (°C) | 23.1 | 22.9 | 23.5 | 23.7 | 23.8 | 23.9 | 24.1 | 24.9 | 25.5 | 26.1 | 26.2 | 25.3 |
| Absolute minimum temperature (°C) | 21.4 | 22.0 | 22.0 | 22.5 | 22.4 | 22.5 | 22.5 | 22.4 | 23.0 | 24.4 | 23.6 | 23.8 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 |
| Daylight mean duration (h) | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 |
| Daylight minimum duration (h) | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 |
| Sunshine mean duration (h) | 8.4 | 7.0 | 7.0 | 8.1 | 9.0 | 10.8 | 10.9 | 11.1 | 11.3 | 11.3 | 11.1 | 10.1 |
| Precipitation (mm) | 328 | 417 | 393 | 262 | 312 | 101 | 97 | 36 | 58 | 20 | 31 | 107 |
| Sunny days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 9 | 9 | 7 | 1 |
| Rainy days | 31 | 28 | 31 | 30 | 31 | 30 | 31 | 31 | 21 | 22 | 23 | 30 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in San Marcos is at