S
M
T
W
T
F
S
28
97°
77°
29
97°
76°
30
93°
75°
1
93°
73°
2
94°
74°
3
95°
74°
4
97°
76°
5
96°
75°
6
95°
78°
7
97°
77°
8
98°
76°
9
99°
78°
10
98°
77°
11
97°
76°
12
98°
77°
13
96°
78°
14
94°
76°
15
97°
77°
16
98°
77°
17
98°
76°
18
97°
77°
19
98°
77°
20
98°
76°
21
97°
77°
22
98°
77°
23
98°
76°
24
98°
77°
25
99°
77°
26
98°
76°
27
98°
77°
28
97°
77°
29
98°
76°
30
99°
77°
31
99°
77°
1
100°
76°
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 93° to 100°, with overnight lows between 73° and 78°. The average high for July is 97° with an average low of 76°. 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.
