S
M
T
W
T
F
S
28
89°
74°
29
91°
75°
30
91°
75°
1
90°
74°
2
86°
75°
3
86°
75°
4
87°
74°
5
88°
74°
6
90°
74°
7
91°
74°
8
90°
73°
9
89°
72°
10
91°
73°
11
90°
72°
12
90°
72°
13
91°
73°
14
90°
72°
15
89°
71°
16
89°
71°
17
90°
72°
18
88°
71°
19
89°
71°
20
89°
72°
21
90°
72°
22
89°
73°
23
89°
72°
24
90°
72°
25
91°
73°
26
91°
73°
27
90°
71°
28
92°
72°
29
91°
73°
30
90°
72°
31
92°
73°
1
92°
73°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in St. Augustine Beach
St. Augustine Beach's July 2026 forecast shows daily high temperatures ranging from 86° to 92°, with overnight lows between 71° and 75°. The average high for July is 90° 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 July weather will actually feel in St. Augustine Beach. See also: August | September | October.