San Diego weather in April
“Mild and bright — an underrated time to visit.”
Roughly 3 rainy days across the month, on average.
In april, San Diego settles into its kind, mild rhythm. The city keeps a different pulse than in summer or midwinter, and travellers who arrive with the right expectations are rewarded.
Days average around 20°C (68°F), cooling to 13°C after sunset. Rain is rare enough that you can plan without a contingency. Long days of sunshine reward early starts.
These figures are climatological averages, drawn from a decade of daily records via the Open-Meteo Archive — not a forecast. But they are honest, and they are the sort of thing a good travel guide ought to tell you before you book the flight.
What to pack for San Diego in April
- •A light layer for cool mornings and evenings
- •Reef-safe sunscreen and polarised sunglasses
- •Comfortable, broken-in walking shoes
- •A small daypack that won't look like a tourist beacon
What to pack for San Diego in April
- →Breathable travel pantsAmazon · shop this
- →Reef-safe sunscreen SPF 50Amazon · shop this
- →Polarized sunglassesAmazon · shop this
- →Universal travel adapterAmazon · shop this
- →Compression packing cubesAmazon · shop this
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Where to stay in San Diego
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Compare hotels on Booking.com→April vs. the rest of the year
How this month compares in San Diego. Tap any month to read more.
highlighted months are among the best time to visit.
Best time to visit San Diego
April is one of the best months to visit San Diego — alongside June, July, August. Ten-year climate data confirms it: comfortable temperatures, manageable rainfall, and a healthy dose of sunshine.
See the full best-time-to-visit guide for San DiegoOther places with a similar climate right now
San Diego in April — FAQ
Q01Is April a good time to visit San Diego?
Is April a good time to visit San Diego?
Yes — this is one of the best months of the year to visit. In April, San Diego averages a high of 20°C (68°F) and a low of 13°C (55°F), with 20mm of rainfall across roughly 3 rainy days.
Q02What is the average temperature in San Diego in April?
What is the average temperature in San Diego in April?
The average high temperature in San Diego during April is 20°C (68°F), with an average low of 13°C (55°F). These figures are averaged from ten years of daily records (2015–2024, Open-Meteo Archive).
Q03How many rainy days does San Diego have in April?
How many rainy days does San Diego have in April?
San Diego averages approximately 3 rainy days in April, with a total monthly rainfall of about 20mm. This is based on daily precipitation records where days with 1mm or more of rain are counted as rainy days.
Q04What should I pack for San Diego in April?
What should I pack for San Diego in April?
For San Diego in April, pack layered clothing for changing temperatures, sunscreen and sunglasses, comfortable walking shoes. These recommendations are based on the ten-year weather averages for this specific month.
Q05How crowded is San Diego in April?
How crowded is San Diego in April?
Tourist crowds in San Diego during April are typically moderate. Consider this when planning accommodation — prices track crowd levels closely.