S
M
T
W
T
F
S
28
72°
64°
29
74°
65°
30
76°
66°
1
76°
65°
2
75°
64°
3
76°
63°
4
73°
63°
5
71°
62°
6
71°
62°
7
72°
63°
8
71°
62°
9
72°
63°
10
77°
69°
11
78°
69°
12
77°
65°
13
78°
66°
14
75°
68°
15
76°
67°
16
76°
68°
17
75°
70°
18
78°
69°
19
79°
70°
20
79°
69°
21
78°
69°
22
76°
68°
23
74°
68°
24
77°
67°
25
76°
65°
26
74°
64°
27
73°
64°
28
73°
70°
29
74°
71°
30
75°
71°
31
78°
70°
1
79°
69°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in San Diego
San Diego's July 2026 forecast shows daily high temperatures ranging from 71° to 79°, with overnight lows between 62° and 71°. The average high for July is 75° with an average low of 67°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how July weather will actually feel in San Diego. See also: August | September | October.
