Measurements:
°C
°F
CURRENT WEATHER
09:37
St. Augustine
86°F
W 12 mph
Feels like: 94°F
Precip: 49%
World Resorts USA St. Augustine Weather

7 Day Weather Forecast

09.15
tue
DAY
88°F
W 12 mph
precip
62%
NIGHT
84°F
SW 18 mph
precip
11%
09.16
wed
DAY
86°F
SW 18 mph
precip
15%
NIGHT
84°F
W 17 mph
precip
22%
09.17
thu
DAY
86°F
SW 14 mph
precip
15%
NIGHT
84°F
W 11 mph
precip
27%
09.18
fri
DAY
88°F
W 9 mph
precip
18%
NIGHT
84°F
W 9 mph
precip
23%
09.19
sat
DAY
84°F
NW 6 mph
precip
29%
NIGHT
86°F
NW 9 mph
precip
21%
09.20
sun
DAY
86°F
NW 6 mph
precip
22%
NIGHT
84°F
N 12 mph
precip
43%
09.21
mon
DAY
86°F
W 6 mph
precip
41%
NIGHT
82°F
N 13 mph
precip
24%

St. Augustine Sea Water Temperature in September, °F

Select Year: 2026 2025 2024

The average sea surface temperature in September 2026 for St. Augustine was 28.4°F. The maximum and minimum values were 27.2°F and 29.1°F respectively.

St. Augustine on the Weather Map

Best Time to Visit St. Augustine
The most sunny months:
April 17 days
October 15 days
March 14 days
The most warm months:
July 93.4 °F
August 92.7 °F
June 91.2 °F
Warmest sea temperature:
August 87.1 °F
July 86.6 °F
September 86.4 °F
The most cold months:
January 64.6 °F
December 68.2 °F
February 69.8 °F
The most rainy months:
July 5 days
September 4 days
August 4 days
The most windy months:
January 7 mph
April 7 mph
December 6 mph
more details