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St Augustine Beach, FL

86°F
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St Augustine Beach

Florida

86°
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St Augustine Beach, FL Weather
Today WinterCast Local {stormName} Tracker Hourly 10-Day Radar MinuteCast® Monthly Air Quality Health & Activities

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Monthly

 Air Quality Health & Activities
Heat Advisory

August

January February March April May June July August September October November December

2026

2025 2026 2027

10-Day

S
M
T
W
T
F
S
26
A t-storm in the afternoon
88°
75°
27
Rather cloudy
88°
74°
28
A thunderstorm in spots
88°
75°
29
A shower and thunderstorm
88°
74°
30
A t-storm around in the p.m.
88°
75°
31
An afternoon t-storm or two
89°
75°
1
Humid; a shower in the a.m.
87°
74°
2
Mostly cloudy and humid
88°
75°
3
Mostly cloudy and humid
89°
75°
4
A couple of morning showers
90°
74°
5
A shower and thunderstorm
87°
74°
6
Mainly cloudy and humid
88°
75°
7
Humid with clouds and sun
89°
74°
8
Humid with clouds and sun
90°
73°
9
A shower and thunderstorm
87°
74°
10
A t-storm in the afternoon
86°
74°
11
An afternoon thunderstorm
86°
73°
12
Mostly cloudy and humid
87°
75°
13
Humid; a stray p.m. t-shower
87°
74°
14
Mostly sunny and humid
88°
75°
15
Turning out cloudy and humid
89°
75°
16
Humid with clouds and sun
89°
74°
17
Humid with some sunshine
90°
75°
18
Humid with a t-storm or two
90°
75°
19
Humid; a shower in the a.m.
87°
74°
20
Mostly cloudy
87°
73°
21
Couple of thunderstorms
89°
71°
22
A couple of showers
87°
71°
23
Partial sunshine
86°
73°
24
A couple of showers
88°
72°
25
A shower and thunderstorm
87°
73°
26
Humid with a few showers
88°
74°
27
Humid with a few showers
88°
74°
28
Humid with showers around
89°
73°
29
Humid with showers around
87°
72°
30
A shower and t-storm; humid
86°
72°
31
A shower and t-storm; humid
86°
73°
1
Humid with showers around
87°
72°
2
Humid with a few showers
87°
73°
3
Humid with a few showers
88°
73°
4
Couple of thunderstorms
87°
72°
5
Couple of thunderstorms
87°
72°

Temperature Graph

°F
100° 94° 88° 82° 76° Aug
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo

August Weather in St. Augustine Beach

St. Augustine Beach's August 2026 forecast shows daily high temperatures ranging from 86° to 90°, with overnight lows between 71° and 75°. The average high for August is 88° 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 St. Augustine Beach. See also: September | October | November.

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World North America United States Florida St Augustine Beach

Weather Near St Augustine Beach:

  • Fruit Cove, FL
  • Jacksonville, FL
  • Lakeside, FL
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