S
M
T
W
T
F
S
31
71°
60°
1
72°
60°
2
72°
60°
3
73°
59°
4
72°
61°
5
73°
60°
6
71°
61°
7
72°
60°
8
73°
59°
9
75°
61°
10
76°
60°
11
75°
61°
12
76°
60°
13
74°
61°
14
82°
62°
15
76°
62°
16
76°
62°
17
75°
61°
18
76°
62°
19
76°
62°
20
75°
61°
21
76°
62°
22
77°
62°
23
77°
61°
24
76°
62°
25
77°
62°
26
76°
61°
27
77°
61°
28
75°
58°
29
73°
58°
30
75°
60°
1
76°
61°
2
77°
63°
3
77°
63°
4
76°
62°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Oceanside
Oceanside's June 2026 forecast shows daily high temperatures ranging from 71° to 82°, with overnight lows between 58° and 63°. The average high for June is 75° with an average low of 61°. 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 Oceanside. See also: July | August | September.