Weather in San Diego: July
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Average day temperature: | 76.2°F |
| Average night temperature: | 66.2°F | |
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Sea water temperature: | 68.8°F |
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Number of sunny days: | 21 days |
| Day length: | 12.8 - 14.3 hours | |
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Number of rainy days: | 1 day |
| Precipitation totals: | 0.6 in. | |
| more information | ||
14 days
forecast
forecast
| San Diego |
sea water
temperature
temperature
| San Diego |
Air temperature in July, °F
Show year:
2025
2024
2023
The highest day temperature during July of 2025 was 77°F. At the same time the lowest night temperature was 62°F. Daily and nightly averages during July were 73.5°F and 64.9°F.
Sea water temperature in San Diego in July, °F
Show year:
2025
2024
2023
The average sea water temperature in July of 2025 was 66.0°F. The highest and lowest sea temperatures during the month were 69.3°F and 63.1°F.
Sunny, partly cloudy and cloudy days
Mostly all days in July are sunny but cloudy days are also possible.
Precipitation total in July, in.
Precipitation total value in San Diego in July is 0.6 in. Other months of the year show relatively similar values.
Wind speed in July, mph
The average wind speed value in July is 6.5 mph
Average sunny hours
This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in July is: 9.8.
Best time for vacation in San Diego
San Diego on a weather map
Places in USA:
Name
°F
24 Hours Forecast
San Diego
Local time: 20:13
December 05, friday
2100
57°F
SE
4 mph
4 mph
December 06, saturday
0000
54°F
SE
2 mph
2 mph
0300
52°F
S
1 mph
1 mph
0600
52°F
S
2 mph
2 mph
0900
55°F
W
0 mph
0 mph
1200
61°F
NE
3 mph
3 mph
1500
61°F
NE
6 mph
6 mph
1800
57°F
NE
5 mph
5 mph
