Average annual temperature is 26.0 °C
Absolute maximum temperature: 32.0 °C
Absolute minimum temperature: 21.4 °C
Number of sunny days: 2 days
Number of rainy days: 363 days
Look at detailed online map of San Mateo
* Weather data for San Mateo Ecuador is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 30.0 | 30.3 | 30.4 | 30.8 | 32.0 | 30.8 | 31.7 | 31.1 | 31.6 | 31.7 | 31.8 | 30.7 |
| Average daytime temperature (°C) | 28.6 | 29.0 | 29.2 | 29.8 | 29.9 | 29.6 | 29.9 | 29.8 | 30.0 | 29.9 | 29.8 | 29.7 |
| Average temperature (°C) | 25.1 | 25.6 | 25.7 | 26.0 | 26.5 | 26.1 | 26.2 | 26.1 | 26.1 | 26.1 | 26.1 | 26.1 |
| Average night temperature (°C) | 22.7 | 23.4 | 23.3 | 23.4 | 24.3 | 23.8 | 23.7 | 23.7 | 23.5 | 23.6 | 23.6 | 23.8 |
| Absolute minimum temperature (°C) | 21.4 | 22.5 | 21.9 | 22.4 | 23.3 | 23.0 | 22.8 | 21.9 | 22.9 | 22.5 | 22.4 | 22.3 |
| 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 | 12.2 | 12.2 | 12.2 | 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) | 8.5 | 9.1 | 8.4 | 9.0 | 8.4 | 8.8 | 9.5 | 9.5 | 9.4 | 8.2 | 9.0 | 8.4 |
| Precipitation (mm) | 202 | 299 | 368 | 284 | 371 | 317 | 283 | 190 | 86 | 153 | 133 | 436 |
| Sunny days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 0 |
| Rainy days | 31 | 28 | 31 | 30 | 31 | 30 | 31 | 31 | 29 | 30 | 30 | 31 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in San Mateo is at