Measurements:
°C
°F
Annapolis
32°F
S 15 mph
Feels like: 20°F
Precip: 0%
World Resorts USA Annapolis Weather

Annapolis Sea Water Temperature

Current Sea Water Temperature:
+46.6°F
Maximum Sea Water Temperature in December: 53.6°F
Minimum Sea Water Temperature in December: 36.4°F
Average water temperature in December: 44.8°F

Sea Water Temperature for the Last 10 Days:

December 04 46.6°F November 29 50.6°F
December 03 47.4°F November 28 52.0°F
December 02 47.8°F November 27 52.4°F
December 01 47.6°F November 26 51.4°F
November 30 48.6°F November 25 51.6°F

When is the Warmest Sea for Annapolis?

According to our data for the last three years for Annapolis the highest average sea water temperature was in July, August and September.

Average Water Temperature by Month, °F

Sea Water Temperature in July

Select Year: 2025 2024 2023

The average sea surface temperature in July 2025 for Annapolis was 87.3°F. The maximum and minimum values were 85.2°F and 90.4°F respectively.

Sea Water Temperature in August

Select Year: 2025 2024 2023

The average sea surface temperature in August 2025 for Annapolis was 83.5°F. The maximum and minimum values were 78.4°F and 89.4°F respectively.

Sea Water Temperature in September

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Annapolis was 77.3°F. The maximum and minimum values were 75.0°F and 79.8°F respectively.

Best Time to Visit Annapolis
The most sunny months:
November 17 days
October 17 days
September 15 days
The most warm months:
July 89.2 °F
August 85.7 °F
June 82.9 °F
Warmest sea temperature:
July 85.5 °F
August 84.5 °F
September 78.8 °F
The most cold months:
January 38.9 °F
February 42.1 °F
December 44.1 °F
The most rainy months:
August 4 days
July 4 days
April 3 days
The most windy months:
March 9 mph
January 9 mph
February 9 mph

Annapolis on the Weather Map

USA Resorts:
NAME
Chicago 0
Hawaii +78
Honolulu +78
Houston +46
Las Vegas +44
Los Angeles +56
Maui +72
Miami +72
Miami Beach +80
New York +20
San Diego +58
San Francisco +48
Sarasota +64
Tampa +64
Washington +28
24 Hours Weather Forecast
Annapolis
Local time: 00:58
05 dec, friday
0300 30°F
SW
12 mph
0600 26°F
W
7 mph
0900 26°F
W
7 mph
1200 28°F
W
5 mph
1500 32°F
SW
4 mph
1800 32°F
SW
4 mph
2100 32°F
SW
4 mph
06 dec, saturday
0000 32°F
S
3 mph