April Weather in San Francisco

Last updated: March 2, 2024

The weather in San Francisco, Peru, during April is characterized by an average temperature of 16°C (61°F). Highs can soar to 23°C (74°F), while lows may dip to 10°C (50°F). Typically, the humidity level in San Francisco throughout April hovers around 90%.

10°C (50°F)

Minimum temperature

16°C (61°F)

Average temperature

23°C (74°F)

Maximum temperature

90%

Humidity

Precipitation and Sunshine hours

In April, San Francisco averages 282 mm (11.1 inches) of rainfall, typically over the course of 25 rainy days. The month enjoys an average of 11 hours 47 minutes of daylight, with the sun shining for approximately 9 hours 34 minutes each day. Additionally, there is a 18% probability of sunny days during this period.

282 mm (11.1 inches)

Precipitation

25 rainy days

Rainy days

9 hours 34 minutes

Sunshine hours

18%

Chance of sun

UV Index

In April, the UV Index in San Francisco reaches a maximum of 16, 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.

Average solar exposure data for the current time of the year. Actual values may vary and depend on many factors, such as cloud cover, vegetation cover, surface type, etc.
  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 7 12 15 16 14 11 6 3 1 0 0
Exposure Low Moderate High Extreme High Moderate Low
Time to burn 45 min 30 min 25 min 10 min 25 min 30 min 45 min

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