What July feels like in San Diego
Mid-summer arrives in San Diego with July. Warm daytime weather invites long lunches outside and evening strolls. There is little difference between day and night: nights stay mild, and evenings feel much like the afternoon. Thick, humid air means clothes cling and the heat feels stronger than the number.
Rain in San Diego in July
Rain is rare in July — most weeks pass without a wet day. Rainfall per wet day is small, about 3.5 mm (0.1 in), so showers tend to pass quickly. That is lighter than the city's yearly norm of about 8.3 mm per rainy day. It is among the three driest months of the year.
Daylight and sunshine in July
In mid-July, sunrise is at about 5:51 am and sunset at about 7:58 pm (local time) — 14 h 7 min of daylight. Days are getting shorter: 10 min less daylight than in mid-June. Measured sunshine covers about 91% of the daylight — skies are mostly clear.
How July compares to the rest of the year
Ranked by average high, July comes out as the 3rd warmest month in San Diego. Afternoons run 2.2°C (4°F) warmer than in June, with 2 mm more rain. August continues the upward trend. August averages a high of 25.4°C (77.7°F).
Who July suits
- Sightseeing: a good fit — the weather rarely gets in the way of a city walk.
- Parks & outdoor: a good fit — pleasant for gardens, parks and riversides.
- Beach: a good fit — warm and mostly dry on the coast.
Tips for visiting San Diego in July
Sunglasses
Bright days make sunglasses worth packing.
Quick questions
How warm is San Diego in July?
Expect around 24.3°C (75.7°F) in the afternoon and 17.8°C (64°F) at night, which most visitors would call warm.
Does it rain a lot in San Diego in July?
Hardly — only about 1 rainy days and 4 mm for the whole month.
What should I wear in San Diego in July?
The numbers point to sunglasses. Evenings feel similar to the day, so the same clothes work from morning to night.
Is July or August better for visiting San Diego?
On our 12-month climate ranking, July comes out ahead (#2 of 12 vs #3). August is warmer.