San Diego in July
Summer and Comic-Con
By Daan · Last reviewed October 2026
The short answer
July is a reasonable month in San Diego — with trade-offs.
July brings reliable sun, beach days and Comic-Con, which fills downtown hotels.
July in detail
What July actually feels like
- Weather
- 19–24°C
- Warm and sunny.
- Crowds
- High
- High season.
- Prices
- $$$$
- Peak rates, highest around Comic-Con.
+Sunny, warm beach days.
–Busy and expensive, especially around Comic-Con.
My tip for July
Avoid Comic-Con dates unless you are going to it.
- Beach
- Events
How July compares
Against the other eleven months
4th of 12 overall in San Diego, 3rd for weather, 12th for space, 12th for value. The emptiest month is January; the best value is November.
See all twelve months for San DiegoPlan around
What’s on in San Diego in July
- Comic-Con
- Downtown hotels sell out and prices jump around Comic-Con weekend.
- Summer peak
- Beaches, the zoo and La Jolla Cove are at their busiest.
July
July–August
Not set on July?
Even stronger months in San Diego
Weather
Weather in San Diego in July
In July San Diego averages a high of 24°C (75°F) and a low of 19°C (66°F), with about 2 mm of rain or snow over 1 wet days. The warmest month is August (around 25°C) and the coolest is January (around 19°C); the wettest month is February.
- Average high
- 24°C
- 75°F
- Average low
- 19°C
- 66°F
- Precipitation
- 2 mm
- Wet days
- 1
Climate data: NOAA (San Diego International Airport, 1991–2020). Temperatures are averages of daily highs and lows.
Quick answers
San Diego in July: the questions people ask
- Is July a good time to visit San Diego?
- July is a reasonable month in San Diego — with trade-offs. It ranks 4 of 12 months in San Diego overall (3 for weather, 12 for space, 12 for value). The main upside: Sunny, warm beach days. The main downside: Busy and expensive, especially around Comic-Con.
- What is the weather like in San Diego in July?
- Average highs are around 24°C and lows around 19°C. Expect about 2 mm of rain or snow over roughly 1 wet days. Warm and sunny. For comparison, the warmest month is August (around 25°C) and the coolest is January (around 19°C).
- Is San Diego crowded in July?
- Crowds are high. High season. The quietest month is January.
- How expensive is San Diego in July?
- Prices are at level 4 of 5 ($$$$). Peak rates, highest around Comic-Con. The best-value month is November.
- When is the best time to visit San Diego?
- In the CrowdFreeViews month scores, October is the best month overall (July ranks 4 of 12). The quietest month is January and the best value is November.