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The weather in San Diego in April is the best of the whole year. It’s pleasantly warm with highs of 68°F (20°C) and the sun is shining for a long 9 hours each day. There are only 2 rainy days to be expected for the whole month. Temperature lows measure 54°F (12°C) and the Pacific Ocean water temperature is 63°F (17°C) in April. Best of all in April it that it’s still clear and sunny before overcast skies start to appear a lot over the following two months.
April. (California, United States of America) You can expect very pleasant temperatures during the day in April. The average maximum daytime temperature in San Diego in April lies at 20.3°C (68.54°F). The average minimum temperature is 14.0°C (57.2°F) (usually the minimum temperature is noted at night). April is a dry month with an average of 20mm (0.8in) rain.
- Average High Temperature: 68 F (20 C)
- Average Low Temperature: 56 F (13 C)
- Water Temperature: 61 F (16 C)
- Days With Rainfall: 4 days
Weather Today Weather Hourly 14 Day Forecast Yesterday/Past Weather Climate (Averages) Currently: 59 °F. Passing clouds. (Weather station: San Diego - North Island, USA). See more current weather Annual Weather Averages Near San Diego Averages are for San Diego - North Island, which is 3 miles from San Diego.