Average annual temperature is 23.8 °C
Absolute maximum temperature: 32.8 °C
Absolute minimum temperature: 17.5 °C
Number of sunny days: 54 days
Number of rainy days: 311 days
Look at detailed online map of San Marcos
* Weather data for San Marcos Nicaragua is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 27.7 | 28.3 | 29.3 | 31.7 | 32.8 | 29.8 | 29.7 | 30.3 | 30.0 | 29.4 | 28.4 | 28.2 |
| Average daytime temperature (°C) | 26.4 | 26.9 | 28.0 | 29.7 | 30.5 | 27.6 | 27.6 | 28.2 | 28.6 | 27.5 | 26.6 | 26.9 |
| Average temperature (°C) | 22.3 | 22.3 | 23.3 | 24.6 | 25.7 | 24.0 | 24.1 | 24.3 | 24.6 | 23.6 | 23.4 | 23.3 |
| Average night temperature (°C) | 19.3 | 19.0 | 19.7 | 20.3 | 21.6 | 21.7 | 21.8 | 21.9 | 21.9 | 21.4 | 21.4 | 20.7 |
| Absolute minimum temperature (°C) | 17.5 | 18.5 | 18.6 | 19.0 | 20.6 | 20.7 | 21.1 | 21.0 | 20.8 | 20.3 | 20.3 | 18.7 |
| 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 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 11.0 | 11.0 |
| Daylight mean duration (h) | 11.5 | 11.8 | 12.1 | 12.4 | 12.7 | 12.8 | 12.7 | 12.5 | 12.2 | 11.9 | 11.6 | 11.4 |
| 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 | 10.9 | 10.9 | 11.5 | 10.8 | 8.7 | 10.5 | 9.9 | 10.9 | 9.2 | 9.4 | 10.3 |
| Precipitation (mm) | 33 | 33 | 36 | 11 | 104 | 215 | 138 | 250 | 130 | 461 | 250 | 44 |
| Sunny days | 7 | 5 | 8 | 14 | 8 | 0 | 1 | 0 | 1 | 0 | 0 | 10 |
| Rainy days | 24 | 23 | 23 | 16 | 23 | 30 | 30 | 31 | 29 | 31 | 30 | 21 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in San Marcos is at