Measurements:
°C
°F
Seward
14°F
S 5 mph
Feels like: 8°F
Precip: 0%
World Resorts USA Seward Weather

Seward Sea Water Temperature

Current Sea Water Temperature:
+38.0°F
Maximum Sea Water Temperature in March: 40.4°F
Minimum Sea Water Temperature in March: 34.4°F
Average water temperature in March: 37.9°F

Sea Water Temperature for the Last 10 Days:

March 13 38.0°F March 08 38.0°F
March 12 37.8°F March 07 38.8°F
March 11 37.4°F March 06 38.6°F
March 10 37.8°F March 05 38.8°F
March 09 37.6°F March 04 38.8°F

When is the Warmest Sea for Seward?

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

Average Water Temperature by Month, °F

Sea Water Temperature in August

Select Year: 2025 2024 2023

The average sea surface temperature in August 2025 for Seward was 56.6°F. The maximum and minimum values were 53.8°F and 59.2°F respectively.

Sea Water Temperature in July

Select Year: 2025 2024 2023

The average sea surface temperature in July 2025 for Seward was 55.1°F. The maximum and minimum values were 53.4°F and 56.8°F respectively.

Sea Water Temperature in September

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Seward was 54.5°F. The maximum and minimum values were 53.0°F and 55.8°F respectively.

Best Time to Visit Seward
The most sunny months:
January 7 days
November 7 days
October 6 days
The most warm months:
July 62.2 °F
August 60.9 °F
June 59.2 °F
Warmest sea temperature:
August 56.9 °F
July 55.8 °F
September 53.7 °F
The most cold months:
December 17.4 °F
January 17.9 °F
February 22.8 °F
The most rainy months:
August 5 days
September 5 days
October 4 days
The most windy months:
December 6 mph
January 5 mph
February 5 mph

Seward on the Weather Map

USA Resorts:
NAME
Chicago +42
Hawaii +74
Honolulu +74
Houston +82
Las Vegas +88
Los Angeles +98
Maui +70
Miami +86
Miami Beach +86
New York +42
San Diego +98
San Francisco +70
Sarasota +80
Tampa +82
Washington +56
24 Hours Weather Forecast
Seward
Local time: 11:56
13 mar, friday
1200 14°F
S
5 mph
1500 20°F
SE
2 mph
1800 18°F
SE
1 mph
2100 0°F
S
6 mph
14 mar, saturday
0000 -2°F
S
7 mph
0300 -2°F
S
7 mph
0600 2°F
S
7 mph
0900 8°F
S
7 mph