S
M
T
W
T
F
S
28
73°
56°
29
73°
57°
30
73°
59°
1
75°
58°
2
74°
57°
3
72°
59°
4
74°
58°
5
74°
58°
6
73°
57°
7
73°
58°
8
72°
58°
9
74°
59°
10
76°
57°
11
74°
54°
12
74°
56°
13
75°
57°
14
75°
53°
15
74°
55°
16
74°
56°
17
73°
56°
18
72°
55°
19
71°
54°
20
74°
54°
21
74°
52°
22
72°
53°
23
71°
59°
24
72°
57°
25
71°
56°
26
73°
54°
27
74°
56°
28
74°
57°
29
75°
59°
30
75°
59°
31
74°
58°
1
75°
58°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in South San Francisco
South San Francisco's July 2026 forecast shows daily high temperatures ranging from 71° to 76°, with overnight lows between 52° and 59°. The average high for July is 73° with an average low of 57°. 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 South San Francisco. See also: August | September | October.
