S
M
T
W
T
F
S
26
93°
77°
27
94°
75°
28
93°
76°
29
93°
74°
30
90°
73°
31
92°
71°
1
93°
71°
2
90°
72°
3
92°
77°
4
93°
76°
5
92°
73°
6
93°
73°
7
92°
74°
8
92°
73°
9
93°
75°
10
92°
76°
11
93°
75°
12
91°
75°
13
93°
76°
14
92°
75°
15
92°
74°
16
92°
74°
17
90°
73°
18
90°
74°
19
Hist. Avg.
91°
76°
20
Hist. Avg.
91°
76°
21
Hist. Avg.
90°
76°
22
Hist. Avg.
90°
76°
23
Hist. Avg.
90°
75°
24
Hist. Avg.
90°
75°
25
Hist. Avg.
90°
75°
26
Hist. Avg.
90°
75°
27
Hist. Avg.
90°
75°
28
Hist. Avg.
90°
75°
29
Hist. Avg.
90°
75°
30
Hist. Avg.
90°
75°
31
Hist. Avg.
90°
75°
1
Hist. Avg.
90°
75°
2
Hist. Avg.
90°
74°
3
Hist. Avg.
90°
74°
4
Hist. Avg.
90°
74°
5
Hist. Avg.
90°
74°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
August Weather in Seaside
Seaside's August 2026 forecast shows daily high temperatures ranging from 90° to 94°, with overnight lows between 71° and 77°. The average high for August is 92° with an average low of 74°. 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 Seaside. See also: September | October | November.
