World Resorts USA St. Augustine Weather

St. Augustine weather in September

Weather in St. Augustine: September

Average day temperature: 85.1°F
Average night temperature: 74.8°F
Sea water temperature: 83.0°F
Number of sunny days: 6 days
Day length: 11.9 - 12.7 hours
Number of rainy days: 5 days
Precipitation totals: 2.5 in.

Air temperature in September, °F

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2024
2023
2022
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0
15
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45
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75
90
105
120
Day temperature   
Night temperature

The highest day temperature during September of 2024 was 89°F. At the same time the lowest night temperature was 74°F. Day and night temperature averages during September were 84.0°F and 77.9°F.

Sea water temperature in St. Augustine in September, °F

Show year:
2024
2023
2022
1
3
5
7
9
11
13
15
17
19
21
23
25
27
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76
78
80
82
84
86
88
90

The average sea water temperature in September of 2024 was 82.7°F. The highest and lowest sea temperatures during the month were 85.6°F and 80.8°F.

Sunny, partly cloudy and cloudy days
Sunny days
Partly cloudy days
Cloudy days
20%
40%
40%

Number of sunny, partly cloudy and cloudy days in September is almost equal.

Precipitation total in September, in.

jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0.0
0.5
0.9
1.4
1.9
2.3
2.8
3.3
2.1
2.7
1.9
1.4
2.5
2.1
2.7
1.9
1.4

Precipitation total value in St. Augustine in September is 2.5 in. Other months of the year show relatively similar values.

Wind speed in September, mph
jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0.0
1.2
2.3
3.5
4.6
5.8
6.9
8.1
9.2
6.6
6.3
6.0
5.2
4.9
5.8
6.0
6.6
6.1
6.1
6.7
6.6
6.3
6.0
5.4
5.2
4.9
5.8
6.0
6.6
6.1
6.1
6.7

The average wind speed value in September is 5.4 mph It makes September one of the least windy months of the year.

Average sunny hours
jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0.0
1.5
3.0
4.6
6.1
7.6
9.1
10.6
5.6
5.9
7.1
7.0
7.2
7.6
8.9
8.8
7.6
6.8
6.5
5.6
5.9
7.1
6.3
7.0
7.2
7.6
8.9
8.8
7.6
6.8
6.5

This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in September is: 6.3.

Best time for vacation in St. Augustine

Sunniest months:
April 15 days
March 14 days
May 14 days
Warmest months:
July 88.7 °F
August 88.5 °F
June 87.0 °F
Warmest sea temp:
August 83.4 °F
July 83.1 °F
September 83.0 °F
Coldest months:
January 63.6 °F
December 66.5 °F
February 69.2 °F
Rainiest months:
July 6 days
September 5 days
August 4 days
Windiest months:
January 6.7 mph
December 6.6 mph
April 6.6 mph

St. Augustine on a weather map

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24 Hours Forecast
St. Augustine
Local time: 19:17
February 18, tuesday
2100
59°F
SW
7 mph
February 19, wednesday
0000
59°F
SW
6 mph
0300
59°F
SW
6 mph
0600
59°F
SW
7 mph
0900
61°F
W
3 mph
1200
64°F
S
7 mph
1500
63°F
S
9 mph
1800
59°F
S
9 mph
Units of measurement: °C / °F