Measurements:
°C
°F
Annapolis
14°F
SE 17 mph
Feels like: -2°F
Precip: 0%
World Resorts USA Annapolis Weather

Annapolis Sea Water Temperature

Current Sea Water Temperature:
+31.8°F
Maximum Sea Water Temperature in January: 46.6°F
Minimum Sea Water Temperature in January: 29.8°F
Average water temperature in January: 38.1°F

Sea Water Temperature for the Last 10 Days:

January 29 31.8°F January 24 34.4°F
January 28 31.2°F January 23 35.2°F
January 27 32.0°F January 22 34.6°F
January 26 33.6°F January 21 35.0°F
January 25 34.2°F January 20 35.8°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 38.5 °F
February 42.1 °F
December 43.4 °F
The most rainy months:
August 4 days
July 4 days
October 3 days
The most windy months:
January 9 mph
March 9 mph
February 9 mph

Annapolis on the Weather Map

USA Resorts:
NAME
Chicago 0
Hawaii +74
Honolulu +74
Houston +38
Las Vegas +48
Los Angeles +56
Maui +68
Miami +64
Miami Beach +70
New York +12
San Diego +60
San Francisco +50
Sarasota +58
Tampa +58
Washington +12
24 Hours Weather Forecast
Annapolis
Local time: 10:52
29 jan, thursday
1200 14°F
SE
17 mph
1500 18°F
SE
14 mph
1800 22°F
SE
11 mph
2100 16°F
SE
12 mph
30 jan, friday
0000 14°F
SE
11 mph
0300 12°F
SE
8 mph
0600 10°F
SE
7 mph
0900 12°F
S
7 mph