Last updated: March 2, 2024
The weather in San Francisco, Peru, during May is characterized by an average temperature of 15°C (60°F). Highs can soar to 23°C (73°F), while lows may dip to 7°C (46°F). Typically, the humidity level in San Francisco throughout May hovers around 85%.
Minimum temperature
Average temperature
Maximum temperature
Humidity
In May, San Francisco averages 105 mm (4.1 inches) of rainfall, typically over the course of 14 rainy days. The month enjoys an average of 11 hours 30 minutes of daylight, with the sun shining for approximately 10 hours 17 minutes each day. Additionally, there is a 38% 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 | 3 | 6 | 10 | 12 | 13 | 11 | 8 | 4 | 2 | 1 | 0 | 0 |
| Exposure | Low | Moderate | High | VeryHigh | Extreme | VeryHigh | Moderate | Low | |||||
| Time to burn | 45 min | 30 min | 25 min | 15 min | 10 min | 15 min | 30 min | 45 min | |||||