Weather in San Diego in July

July in San Diego is warm outdoor weather. Days are long enough to be useful. Shade starts to matter at midday.

In United States, this is how San Diego actually wears July, not how a country centroid would. Compared with August and December, July sits in the middle of San Diego's year.

San Diego
Average temp
21°C

19–24°C

Rainfall
2 mm

Not much rain

Sunshine
Wind
11 km/h

What to expect

Daytime

Warm days in San Diego in July. A hat starts to earn its keep at midday. Evenings are the comfortable part of the clock.

You can walk at more hours than in the fierce months. Still build in a pause when the sun is high. Nights are easy.

Rain

Rain is not the story in San Diego in July. Pack for sun. A shower would be news, not a plan.

Do not build the trip around weather windows. Build it around shade if it is hot, and around getting outside if it is not.

Evening

Evenings stay warm.

What to pack

  • Clothes for the monthly average — nothing extreme

Where to stay in San Diego

Dates are a starting point for July.

All hotels in San Diego

Travel guides for San Diego

What to read before you book.

All travel guides in San Diego

Average weather in San Diego

TemperatureRainfall

Source: MeteostatPeriod: 1991-2020Checked: 28 Aug 2026265 places covered

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FAQs about San Diego

Climate averages for San Diego, 1991–2020.

The best time to visit San Diego is between May and October, the most comfortable stretch of the year on these averages.

August is the hottest month, with an average around 22°C.

February is the wettest month, with about 56 mm of rain.

No. These are 1991–2020 climate normals from Meteostat, not a live forecast. Actual weather in any given week can differ.