San Diego, California Weather in July
United States · July climate averages and travel tips
Avg high31°C (88°F)
Avg low18°C (65°F)
Rainfall4 mm (0.2 in)
RatingGood 7.8/10
Expect very hot days in San Diego in July: the average high is 31°C (88°F) and the average low is 18°C (65°F). July is summer in United States. The month is very dry, with about 4 mm (0.2 in) of rain spread over 1 day, one of the driest months of the year. You get roughly 14 hours of daylight and frequently cloudy skies.
Is July a good time to visit San Diego?
July is a good time to visit San Diego (7.8/10), though October to June are even better.
July weather at a glance
| Average high | 31°C (88°F) |
|---|---|
| Average low | 18°C (65°F) |
| Daily mean | 24°C (75°F) |
| Rainfall | 4 mm (0.2 in) |
| Rainy days (1 mm+) | 1 |
| Humidity | 57% |
| Cloud cover | 74% |
| Daylight | 14 hours |
| Est. sunshine | 4 hours/day |
| Wind | 7.5 km/h |
| vs June | 4°C warmer than June, with 10 mm less rain. |
What to pack for San Diego in July
- light, breathable clothing
- sunscreen and a hat
- swimwear
San Diego weather in other months
Jan19°C / 10°C51 mmExcellentFeb19°C / 10°C52 mmExcellentMar20°C / 11°C39 mmExcellentApr22°C / 12°C15 mmExcellentMay24°C / 13°C8 mmExcellentJun27°C / 15°C14 mmExcellentJul31°C / 18°C4 mmGoodAug32°C / 19°C6 mmGoodSep30°C / 19°C6 mmExcellentOct27°C / 16°C9 mmExcellentNov23°C / 13°C25 mmExcellentDec19°C / 10°C51 mmExcellent
← JuneBest time to visit San DiegoAugust →
Better weather in July nearby
- San Francisco, California23°C · 1 mm · Excellent
- Seattle, Washington23°C · 19 mm · Excellent
- Vancouver22°C · 26 mm · Excellent
- Victoria21°C · 19 mm · Excellent
- Calgary25°C · 59 mm · Excellent
- Honolulu, Hawaii28°C · 41 mm · Excellent
Nearby in July
- Tijuana31°C · 4 mm
- Mexicali44°C · 6 mm
- Los Angeles, California31°C · 2 mm
- Las Vegas, Nevada42°C · 16 mm
- Phoenix, Arizona41°C · 36 mm
- San Francisco, California23°C · 1 mm
Where else is good in July? See where to go in July.