April Weather in San Diego

Last updated: March 2, 2024

The weather in San Diego, United States, during April is characterized by an average temperature of 24°C (75°F). Highs can soar to 38°C (100°F), while lows may dip to 9°C (49°F). Typically, the humidity level in San Diego throughout April hovers around 77%.

9°C (49°F)

Minimum temperature

24°C (75°F)

Average temperature

38°C (100°F)

Maximum temperature

77%

Humidity

Precipitation and Sunshine hours

In April, San Diego averages 41 mm (1.6 inches) of rainfall, typically over the course of 8 rainy days. The month enjoys an average of 12 hours 50 minutes of daylight, with the sun shining for approximately 8 hours 52 minutes each day. Additionally, there is a 40% probability of sunny days during this period.

41 mm (1.6 inches)

Precipitation

8 rainy days

Rainy days

8 hours 52 minutes

Sunshine hours

40%

Chance of sun

UV Index

In April, the UV Index in San Diego reaches a maximum of 11, indicating a level of Extreme exposure. The most intense UV radiation typically occurs between 13:00 and 15:00, 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	1	2	4	7	10	11	11	9	7	4	2	1
Exposure	Low			Moderate	High	VeryHigh	Extreme		VeryHigh	High	Moderate	Low
Time to burn	45 min			30 min	25 min	15 min	10 min		15 min	25 min	30 min	45 min