S
M
T
W
T
F
S
28
85°
66°
29
84°
64°
30
87°
67°
1
87°
66°
2
85°
66°
3
87°
67°
4
88°
68°
5
89°
68°
6
88°
66°
7
81°
63°
8
81°
62°
9
82°
63°
10
84°
65°
11
87°
66°
12
88°
68°
13
89°
68°
14
88°
67°
15
89°
69°
16
88°
69°
17
88°
68°
18
87°
68°
19
88°
69°
20
88°
68°
21
89°
69°
22
88°
69°
23
89°
68°
24
89°
69°
25
88°
68°
26
88°
69°
27
90°
68°
28
91°
68°
29
86°
66°
30
88°
67°
31
91°
69°
1
90°
68°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in La Jolla
La Jolla's July 2026 forecast shows daily high temperatures ranging from 81° to 91°, with overnight lows between 62° and 69°. The average high for July is 87° 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 La Jolla. See also: August | September | October.