Measurements:
°C
°F
St. Augustine
54°F
S 9 mph
Feels like: 50°F
Precip: 0%
World Resorts USA St. Augustine Weather December Weather in St. Augustine

St. Augustine Weather: December

Average Day Temperature: 68.2°F
Average Night Temperature: 57.9°F
Sea Water Temperature: 66.4°F
Number of Sunny Days: 13 days
Sunshine Hours: 10.2 - 10.4 hours
Number of Rainy Days: 1 day
Precipitation Totals: 0.6 in

Air Temperature in December, °F

Select Year: 2025 2024 2023

The highest day temperature in December 2025 was 79°F. The lowest night temperature was 34°F. The average values for day and night temperatures during December were 67.0°F и 55.1°F respectivly.

St. Augustine Water Sea Temperature in December, °F

Select Year: 2025 2024 2023

The average sea surface temperature in December 2025 for St. Augustine was 66.1°F. The maximum and minimum values were 63.0°F and 70.0°F respectively.

Sunny, Cloudy and Gloomy days

Most of the days in December are sunny but you can also expect cloudy and gloomy days.

Precipitation Totals in December, in

Precipitation total in December for St. Augustine is 0.6 in. It makes december one of the least rainy months of the year.

Wind Speed in December, mph

The average wind speed in December is 6.8 mph. This value is relatively stable throughout the year.

Average Sunny Hours Per Day

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for St. Augustine in December is 6.0 hours.

Best Time to Visit St. Augustine
The most sunny months:
October 15 days
April 15 days
March 14 days
The most warm months:
July 92.9 °F
August 92.6 °F
June 91.1 °F
Warmest sea temperature:
August 87.4 °F
September 86.4 °F
July 86.4 °F
The most cold months:
January 64.7 °F
December 68.2 °F
February 70.7 °F
The most rainy months:
July 5 days
September 4 days
August 4 days
The most windy months:
January 7 mph
December 6 mph
October 6 mph

St. Augustine on the Weather Map

USA Resorts:
NAME
Chicago +12
Hawaii +80
Honolulu +80
Houston +62
Las Vegas +44
Los Angeles +56
Maui +74
Miami +64
Miami Beach +70
New York +12
San Diego +58
San Francisco +50
Sarasota +60
Tampa +60
Washington +16
24 Hours Weather Forecast
St. Augustine
Local time: 12:58
29 jan, thursday
1500 58°F
SW
7 mph
1800 58°F
SW
7 mph
2100 50°F
W
6 mph
30 jan, friday
0000 50°F
W
5 mph
0300 52°F
NW
3 mph
0600 50°F
NE
2 mph
0900 50°F
E
6 mph
1200 60°F
E
5 mph