S
M
T
W
T
F
S
28
89°
74°
29
93°
77°
30
89°
79°
1
87°
81°
2
86°
72°
3
87°
76°
4
88°
75°
5
93°
75°
6
93°
76°
7
93°
74°
8
94°
76°
9
94°
77°
10
92°
77°
11
92°
75°
12
93°
74°
13
89°
73°
14
90°
74°
15
91°
72°
16
92°
76°
17
89°
75°
18
92°
72°
19
90°
79°
20
90°
76°
21
92°
77°
22
91°
78°
23
89°
77°
24
89°
75°
25
91°
76°
26
92°
76°
27
90°
76°
28
94°
77°
29
95°
77°
30
89°
75°
31
88°
73°
1
90°
74°
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 88° to 95°, with overnight lows between 73° and 77°. The average high for July is 91° with an average low of 75°. 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.