Measurements:
°C
°F
Seward
6°F
S 6 mph
Feels like: -4°F
Precip: 0%
World Resorts USA Seward Weather

Seward Sea Water Temperature

Current Sea Water Temperature:
+36.4°F
Maximum Sea Water Temperature in April: 44.2°F
Minimum Sea Water Temperature in April: 35.6°F
Average water temperature in April: 39.2°F

Sea Water Temperature for the Last 10 Days:

April 03 36.4°F March 29 36.6°F
April 02 36.4°F March 28 36.4°F
April 01 36.4°F March 27 36.2°F
March 31 36.2°F March 26 36.4°F
March 30 36.0°F March 25 36.6°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
March 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 +46
Hawaii +74
Honolulu +74
Houston +74
Las Vegas +54
Los Angeles +56
Maui +66
Miami +74
Miami Beach +78
New York +40
San Diego +58
San Francisco +50
Sarasota +72
Tampa +72
Washington +48
24 Hours Weather Forecast
Seward
Local time: 01:45
03 apr, friday
0300 6°F
S
6 mph
0600 6°F
S
7 mph
0900 12°F
S
6 mph
1200 30°F
S
3 mph
1500 32°F
E
1 mph
1800 32°F
NE
2 mph
2100 14°F
SE
1 mph
04 apr, saturday
0000 12°F
S
4 mph