S
M
T
W
T
F
S
26
82°
66°
27
80°
68°
28
79°
68°
29
79°
69°
30
80°
67°
31
80°
67°
1
81°
64°
2
81°
71°
3
80°
69°
4
79°
63°
5
79°
62°
6
80°
65°
7
83°
65°
8
81°
63°
9
83°
65°
10
82°
65°
11
82°
69°
12
80°
67°
13
79°
69°
14
79°
69°
15
79°
63°
16
79°
62°
17
80°
63°
18
81°
65°
19
82°
67°
20
80°
68°
21
83°
67°
22
84°
67°
23
84°
66°
24
85°
65°
25
83°
66°
26
85°
67°
27
81°
63°
28
80°
64°
29
82°
65°
30
78°
67°
31
79°
53°
1
74°
63°
2
75°
64°
3
75°
64°
4
78°
65°
5
80°
64°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Oceanside
Oceanside's August 2026 forecast shows daily high temperatures ranging from 74° to 85°, with overnight lows between 53° and 68°. The average high for August is 80° 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 August weather will actually feel in Oceanside. See also: September | October | November.
