S
M
T
W
T
F
S
31
71°
61°
1
69°
62°
2
70°
61°
3
70°
62°
4
70°
62°
5
69°
64°
6
70°
63°
7
71°
64°
8
72°
63°
9
73°
63°
10
73°
65°
11
74°
65°
12
79°
65°
13
74°
67°
14
74°
66°
15
73°
67°
16
73°
66°
17
72°
65°
18
71°
63°
19
72°
63°
20
73°
63°
21
73°
63°
22
72°
63°
23
74°
63°
24
73°
65°
25
74°
64°
26
74°
65°
27
72°
64°
28
70°
65°
29
71°
64°
30
72°
65°
1
74°
65°
2
75°
66°
3
75°
66°
4
74°
65°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in San Diego
San Diego's June 2026 forecast shows daily high temperatures ranging from 70° to 75°, with overnight lows between 63° and 66°. The average high for June is 73° with an average low of 65°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how June weather will actually feel in San Diego. See also: July | August | September.