S
M
T
W
T
F
S
31
77°
48°
1
72°
51°
2
79°
50°
3
83°
61°
4
85°
59°
5
86°
59°
6
85°
66°
7
86°
66°
8
73°
61°
9
75°
59°
10
77°
64°
11
95°
69°
12
96°
73°
13
85°
70°
14
86°
68°
15
78°
64°
16
75°
58°
17
76°
61°
18
89°
67°
19
84°
71°
20
85°
68°
21
82°
64°
22
74°
64°
23
71°
67°
24
85°
65°
25
81°
63°
26
79°
67°
27
79°
68°
28
81°
67°
29
84°
65°
30
85°
69°
1
86°
74°
2
95°
79°
3
97°
78°
4
91°
75°
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 86° to 97°, with overnight lows between 74° and 79°. The average high for June is 92° with an average low of 77°. 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.