Average annual temperature is 25.5 °C
Absolute maximum temperature: 36.5 °C
Absolute minimum temperature: 18.4 °C
Number of sunny days: 171 days
Number of rainy days: 194 days
Look at detailed online map of San Sebastián
* Weather data for San Sebastián Peru is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 36.5 | 35.8 | 33.2 | 31.5 | 31.4 | 31.9 | 34.8 | 35.3 | 34.9 | 35.4 | 35.6 | 36.0 |
| Average daytime temperature (°C) | 34.9 | 33.0 | 30.6 | 29.9 | 29.4 | 29.9 | 31.4 | 32.7 | 33.1 | 33.4 | 32.7 | 33.3 |
| Average temperature (°C) | 26.5 | 25.9 | 24.9 | 24.7 | 24.9 | 24.7 | 25.1 | 25.6 | 25.6 | 26.0 | 25.4 | 26.2 |
| Average night temperature (°C) | 20.7 | 22.1 | 21.8 | 22.0 | 21.6 | 20.5 | 20.3 | 20.2 | 20.0 | 20.6 | 20.2 | 21.2 |
| Absolute minimum temperature (°C) | 19.1 | 21.0 | 20.4 | 21.1 | 19.7 | 18.9 | 18.8 | 18.9 | 18.4 | 19.6 | 19.1 | 19.8 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 12.0 | 12.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 |
| Daylight mean duration (h) | 12.3 | 12.2 | 12.1 | 12.0 | 11.9 | 11.9 | 11.9 | 12.0 | 12.1 | 12.2 | 12.3 | 12.4 |
| Daylight minimum duration (h) | 12.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 | 11.0 | 11.0 | 12.0 | 12.0 | 12.0 | 12.0 |
| Sunshine mean duration (h) | 9.5 | 9.0 | 8.2 | 7.8 | 8.5 | 9.4 | 10.0 | 10.0 | 10.5 | 9.6 | 9.6 | 8.7 |
| Precipitation (mm) | 55 | 253 | 468 | 642 | 22 | 10 | 6 | 4 | 0 | 29 | 9 | 69 |
| Sunny days | 6 | 0 | 0 | 0 | 13 | 20 | 27 | 27 | 27 | 18 | 22 | 11 |
| Rainy days | 25 | 28 | 31 | 30 | 18 | 10 | 4 | 4 | 3 | 13 | 8 | 20 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in San Sebastián is at