S
M
T
W
T
F
S
26
91°
74°
27
93°
75°
28
93°
74°
29
92°
73°
30
92°
73°
31
91°
74°
1
92°
73°
2
91°
73°
3
89°
74°
4
90°
73°
5
89°
72°
6
88°
73°
7
89°
72°
8
91°
71°
9
89°
71°
10
90°
72°
11
91°
72°
12
90°
72°
13
Hist. Avg.
90°
74°
14
Hist. Avg.
90°
74°
15
Hist. Avg.
90°
74°
16
Hist. Avg.
90°
74°
17
Hist. Avg.
90°
74°
18
Hist. Avg.
90°
74°
19
Hist. Avg.
90°
74°
20
Hist. Avg.
90°
74°
21
Hist. Avg.
90°
74°
22
Hist. Avg.
90°
74°
23
Hist. Avg.
89°
74°
24
Hist. Avg.
89°
74°
25
Hist. Avg.
89°
74°
26
Hist. Avg.
89°
74°
27
Hist. Avg.
89°
74°
28
Hist. Avg.
89°
74°
29
Hist. Avg.
89°
74°
30
Hist. Avg.
89°
74°
31
Hist. Avg.
89°
74°
1
Hist. Avg.
89°
74°
2
Hist. Avg.
89°
74°
3
Hist. Avg.
89°
74°
4
Hist. Avg.
89°
74°
5
Hist. Avg.
88°
74°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
August Weather in St. Augustine Beach
St. Augustine Beach's August 2026 forecast shows daily high temperatures ranging from 88° to 93°, with overnight lows between 71° and 75°. The average high for August is 91° with an average low of 73°. 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 St. Augustine Beach. See also: September | October | November.
