Last updated: March 2, 2024
The weather in San Francisco, Mexico, during January is characterized by an average temperature of 16°C (62°F). Highs can soar to 28°C (82°F), while lows may dip to 7°C (45°F). Typically, the humidity level in San Francisco throughout January hovers around 84%.
Minimum temperature
Average temperature
Maximum temperature
Humidity
In January, San Francisco averages 81 mm (3.2 inches) of rainfall, typically over the course of 14 rainy days. The month enjoys an average of 11 hours 15 minutes of daylight, with the sun shining for approximately 7 hours 39 minutes each day. Additionally, there is a 24% probability of sunny days during this period.
Precipitation
Rainy days
Sunshine hours
Chance of sun
In January, the UV Index in San Francisco reaches a maximum of 10, indicating a level of VeryHigh exposure. The most intense UV radiation typically occurs between 12:00 and 14:00, during which unprotected skin may burn in as little as 15 minutes.
| 07:00 | 08:00 | 09:00 | 10:00 | 11:00 | 12:00 | 13:00 | 14:00 | 15:00 | 16:00 | 17:00 | 18:00 | 19:00 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UVI | 1 | 2 | 4 | 6 | 9 | 10 | 10 | 8 | 5 | 2 | 1 | 0 | 0 |
| Exposure | Low | Moderate | High | VeryHigh | Moderate | Low | |||||||
| Time to burn | 45 min | 30 min | 25 min | 15 min | 30 min | 45 min | |||||||