April weather forecastSan Diego, CA
April
Weather in April
April welcomes much-welcomed improvements to San Diego's conditions. The precipitation drops even further down to 0.67" (17mm), as rainfall becomes less frequent. The month also sees a significant increase in sunshine hours, elevating to 10.9 hours, and adding warmth and brightness to the scenario. The sea temperature also starts to warm up, which means beach days are on the horizon. Despite these progressions, mornings and evenings remain fairly cool so light layering is advisable.Temperature
San Diego's average high-temperature marks a still comfortable 66.2°F (19°C) with the advent of April, closely mirroring that of the preceding month. San Diego's temperature tends to fall to an average low of 54.1°F (12.3°C) during the nights of April.Humidity
In April, the average relative humidity in San Diego, California, is 69%.Rainfall
In April, in San Diego, the rain falls for 6.2 days. Throughout April, 0.67" (17mm) of precipitation is accumulated. Throughout the year, in San Diego, there are 61.8 rainfall days, and 8.7" (221mm) of precipitation is accumulated.Ocean temperature
In April, the average ocean temperature in San Diego is 60.6°F (15.9°C).Note: Swimming in water of 60.6°F (15.9°C) is not enjoyable for the majority of individuals. Breathing control becomes increasingly challenging as the temperature dips from 69.8°F (21°C) to 59°F (15°C).
Daylight
In San Diego, California, the average length of the day in April is 13h and 1min.On the first day of the month, sunrise is at 6:35 am and sunset at 7:09 pm. On the last day of April, in San Diego, California, sunrise is at 6:01 am and sunset at 7:29 pm PDT.
Sunshine
In San Diego, the average sunshine in April is 10.9h.UV index
In San Diego, the average daily maximum UV index in April is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum daily UV index of 5 in April converts into the following recommendations:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. Boost your sun resistance with garments that are densely woven yet spacious.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
San Diego, CA
- Average high temperature in April: 66.2°F
The warmest month (with the highest average high temperature) is August (77.4°F).
The month with the lowest average high temperature is February (63.1°F).
- Average low temperature in April: 54.1°F
The month with the highest average low temperature is August (65.7°F).
The coldest month (with the lowest average low temperature) is February (51.8°F).
Average pressure in April
San Diego, CA
- Average pressure in April: 29.96"Hg
The month with the highest atmospheric pressure is January (30.09"Hg).
The months with the lowest atmospheric pressure are June and September (29.88"Hg).
Average wind speed in April
San Diego, CA
- Average wind speed in April: 6.3mph
The windiest months (with the highest average wind speed) are April and May (6.3mph).
The calmest month (with the lowest average wind speed) is October (5.2mph).
Average humidity in April
San Diego, CA
- Average humidity in April: 69%
The month with the highest relative humidity is June (73%).
The month with the lowest relative humidity is November (59%).
Average rainfall in April
San Diego, CA
- Average rainfall in April: 0.67"
The wettest month (with the highest rainfall) is December (1.65").
The driest month (with the least rainfall) is June (0.12").
Average rainfall days in April
San Diego, CA
- Average rainfall days in April: 6.2 days
The month with the highest number of rainy days is March (7.6 days).
The month with the least rainy days is June (2.7 days).
Average sea temperature in April
San Diego, CA
- Average sea temperature in April: 60.6°F
The best month for swimming (with the highest average sea temperature) is August (67.9°F).
The coldest month (with the lowest average sea temperature) is February (58.7°F).
Average daylight in April /
Average sunshine in April
San Diego, CA
- Average daylight in April: 13h and 0min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in April: 10h and 54min
The months with the most sunshine are July and August (Average sunshine: 11h and 54min).
The month with the least sunshine is December (Average sunshine: 6h and 42min).
Average sunshine days in April
San Diego, CA
- Average sunshine days in April: 21.8 days
The month with the most sunshine days is January (24.3 days).
The month with the least sunshine days is July (20.3 days).
Average UV index in April
San Diego, CA
- Average UV index in April: 5
The months with the highest UV index are July, August and September (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 4).
Average cloud cover in April
San Diego, CA
- Average cloud cover in April: 21
The month with the most cloud cover is December (Cloud cover 24).
The month with the least cloud cover is August (Cloud cover 9).
Average visibility in April
San Diego, CA
- Average visibility in April: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
