April weather forecast
San Diego, CA

englishespañol中文
Share
Coronado Island in San Diego, California, USA,
Coronado Island in San Diego, California, USA,

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.

Frequently asked questions

What is the average April temperature in San Diego?

April temperatures in San Diego vary between a high-temperature of 66.2°F (19°C) and a low-temperature of 54.1°F (12.3°C).

What is the average humidity in April in San Diego?

In San Diego, California, the average relative humidity in April is 69%.

How many days does it rain in April in San Diego?

In San Diego, in April, during 6.2 rainfall days, 0.67" (17mm) of precipitation is typically accumulated.

What is the ocean temperature in April in San Diego?

In San Diego, the average seawater temperature in April is 60.6°F (15.9°C). For swimming, a surface water temperature of 60.6°F (15.9°C) is not enjoyable for the majority. It is not considered safe, as controlling breathing becomes progressively more difficult as water temperature decreases below 69.8°F (21°C).

What is the average length of the day in April in San Diego?

In San Diego, California, the average day length in April is 13h and 1min.

When is the sunrise / sunset in April in San Diego?

On the first day of April, sunrise is at 6:35 am and sunset at 7:09 pm. On the last day of the month, sunrise is at 6:01 am and sunset at 7:29 pm PDT.

How long on average sun shines in April in San Diego?

In San Diego, the average sunshine duration in April is 10.9h.

What is the UV index reading in April in San Diego?

In San Diego, California, the average daily maximum UV index in April is 5. A UV Index value of 3 to 5 symbolizes a medium hazard to health from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in April
San Diego, CA

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 - 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 - 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 - 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 - 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 - 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 - 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 / 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 5min

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 - 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 - 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 - 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 - 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).

San Diego, California, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location