S
M
T
W
T
F
S
26
78°
67°
27
79°
67°
28
79°
68°
29
83°
67°
30
85°
69°
31
85°
70°
1
84°
71°
2
86°
70°
3
85°
70°
4
83°
70°
5
80°
69°
6
79°
70°
7
83°
66°
8
79°
68°
9
Hist. Avg.
83°
69°
10
Hist. Avg.
83°
69°
11
Hist. Avg.
83°
68°
12
Hist. Avg.
83°
68°
13
Hist. Avg.
83°
68°
14
Hist. Avg.
83°
68°
15
Hist. Avg.
82°
68°
16
Hist. Avg.
82°
68°
17
Hist. Avg.
82°
68°
18
Hist. Avg.
82°
68°
19
Hist. Avg.
82°
68°
20
Hist. Avg.
82°
68°
21
Hist. Avg.
82°
67°
22
Hist. Avg.
82°
67°
23
Hist. Avg.
82°
67°
24
Hist. Avg.
81°
67°
25
Hist. Avg.
81°
67°
26
Hist. Avg.
81°
67°
27
Hist. Avg.
81°
66°
28
Hist. Avg.
81°
66°
29
Hist. Avg.
81°
66°
30
Hist. Avg.
80°
66°
31
Hist. Avg.
80°
66°
1
Hist. Avg.
80°
65°
2
Hist. Avg.
80°
65°
3
Hist. Avg.
80°
65°
4
Hist. Avg.
79°
65°
5
Hist. Avg.
79°
64°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
August Weather in Oceanside
Oceanside's August 2026 forecast shows daily high temperatures ranging from 78° to 86°, with overnight lows between 66° and 71°. The average high for August is 82° with an average low of 69°. 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.
