Last updated: March 2, 2024
The weather in San Francisco, Mexico, during May is characterized by an average temperature of 28°C (82°F). Highs can soar to 34°C (93°F), while lows may dip to 20°C (68°F). Typically, the humidity level in San Francisco throughout May hovers around 68%.
Minimum temperature
Average temperature
Maximum temperature
Humidity
In May, San Francisco averages 89 mm (3.5 inches) of rainfall, typically over the course of 14 rainy days. The month enjoys an average of 13 hours 7 minutes of daylight, with the sun shining for approximately 11 hours 0 minutes each day. Additionally, there is a 47% probability of sunny days during this period.
Precipitation
Rainy days
Sunshine hours
Chance of sun
In May, the UV Index in San Francisco reaches a maximum of 13, indicating a level of Extreme exposure. The most intense UV radiation typically occurs between 12:00 and 14:00, during which unprotected skin may burn in as little as 10 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 | 7 | 11 | 13 | 13 | 12 | 9 | 5 | 3 | 1 | 1 |
| Exposure | Low | Moderate | High | Extreme | VeryHigh | Moderate | Low | ||||||
| Time to burn | 45 min | 30 min | 25 min | 10 min | 15 min | 30 min | 45 min | ||||||