Average annual temperature is 14.6 °C
Absolute maximum temperature: 38.5 °C
Absolute minimum temperature: 2.3 °C
Number of sunny days: 272 days
Number of rainy days: 93 days
Look at detailed online map of Port San Luis
* Weather data for Port San Luis United States is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 20.6 | 22.1 | 19.2 | 26.3 | 25.9 | 22.6 | 35.3 | 37.4 | 32.2 | 38.5 | 31.5 | 26.1 |
| Average daytime temperature (°C) | 15.7 | 15.8 | 14.3 | 17.9 | 17.6 | 19.0 | 26.0 | 27.6 | 24.5 | 26.4 | 22.7 | 19.3 |
| Average temperature (°C) | 10.8 | 10.0 | 10.6 | 12.8 | 13.5 | 15.1 | 18.6 | 20.1 | 18.4 | 18.0 | 14.7 | 12.7 |
| Average night temperature (°C) | 7.2 | 5.8 | 7.6 | 8.8 | 10.5 | 12.2 | 13.2 | 15.0 | 14.1 | 12.2 | 8.9 | 8.2 |
| Absolute minimum temperature (°C) | 2.6 | 2.3 | 3.4 | 4.8 | 8.1 | 10.3 | 10.6 | 12.3 | 10.4 | 8.3 | 4.9 | 3.2 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 10.1 | 10.9 | 12.0 | 13.1 | 14.0 | 14.5 | 14.3 | 13.5 | 12.4 | 11.3 | 10.3 | 9.8 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 6.1 | 8.9 | 7.9 | 11.6 | 10.8 | 11.4 | 12.8 | 11.9 | 10.6 | 10.2 | 8.8 | 7.0 |
| Precipitation (mm) | 339 | 93 | 256 | 0 | 15 | 22 | 0 | 0 | 8 | 0 | 65 | 160 |
| Sunny days | 13 | 16 | 14 | 29 | 21 | 21 | 31 | 29 | 24 | 29 | 22 | 23 |
| Rainy days | 18 | 12 | 17 | 1 | 10 | 9 | 0 | 2 | 6 | 2 | 8 | 8 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Port San Luis during the most sunny months:
The largest precipitation sum in Port San Luis is at