S
M
T
W
T
F
S
28
91°
75°
29
90°
77°
30
90°
77°
1
91°
77°
2
86°
71°
3
87°
71°
4
87°
73°
5
86°
74°
6
85°
72°
7
87°
71°
8
85°
74°
9
83°
72°
10
83°
72°
11
84°
71°
12
82°
70°
13
83°
72°
14
84°
71°
15
81°
70°
16
82°
69°
17
80°
70°
18
80°
70°
19
81°
69°
20
81°
69°
21
80°
68°
22
80°
69°
23
81°
70°
24
81°
70°
25
82°
68°
26
80°
70°
27
81°
70°
28
82°
68°
29
81°
68°
30
80°
70°
31
81°
70°
1
82°
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 80° to 87°, with overnight lows between 68° and 74°. The average high for July is 83° with an average low of 70°. 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.
