S
M
T
W
T
F
S
26
81°
62°
27
83°
68°
28
80°
71°
29
84°
69°
30
78°
68°
31
83°
68°
1
N/A
2
81°
70°
3
81°
73°
4
83°
72°
5
82°
74°
6
83°
73°
7
84°
71°
8
80°
70°
9
85°
72°
10
88°
68°
11
82°
70°
12
81°
67°
13
80°
65°
14
79°
66°
15
79°
64°
16
77°
63°
17
84°
66°
18
82°
63°
19
81°
69°
20
83°
66°
21
81°
63°
22
79°
67°
23
84°
70°
24
86°
70°
25
85°
69°
26
83°
69°
27
78°
68°
28
77°
69°
29
83°
67°
30
82°
68°
31
82°
68°
1
81°
63°
2
75°
60°
3
74°
60°
4
74°
61°
5
75°
59°
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 74° to 88°, with overnight lows between 59° and 74°. The average high for August is 81° with an average low of 67°. 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.
