S
M
T
W
T
F
S
28
71°
60°
29
72°
61°
30
74°
62°
1
74°
59°
2
75°
60°
3
79°
60°
4
81°
60°
5
77°
61°
6
77°
61°
7
78°
61°
8
76°
62°
9
78°
62°
10
80°
62°
11
79°
62°
12
78°
63°
13
81°
62°
14
83°
65°
15
85°
66°
16
86°
66°
17
84°
68°
18
82°
67°
19
83°
67°
20
91°
67°
21
87°
64°
22
82°
68°
23
83°
68°
24
82°
66°
25
82°
66°
26
86°
68°
27
82°
67°
28
81°
67°
29
81°
64°
30
81°
64°
31
82°
63°
1
83°
65°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in San Ysidro
San Ysidro's July 2026 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for July is ° with an average low of °. 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 Ysidro. See also: August | September | October.
