S
M
T
W
T
F
S
31
71°
60°
1
72°
58°
2
71°
61°
3
71°
63°
4
72°
61°
5
71°
63°
6
73°
64°
7
73°
61°
8
73°
56°
9
74°
55°
10
74°
60°
11
75°
62°
12
79°
64°
13
75°
62°
14
75°
61°
15
74°
61°
16
73°
56°
17
72°
62°
18
72°
65°
19
73°
60°
20
72°
59°
21
73°
60°
22
74°
61°
23
75°
62°
24
76°
63°
25
75°
64°
26
76°
62°
27
77°
61°
28
75°
63°
29
76°
64°
30
77°
65°
1
78°
64°
2
81°
66°
3
77°
63°
4
78°
65°
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 72° to 81°, with overnight lows between 59° and 66°. The average high for June is 76° with an average low of 63°. 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.