Measurements:
°C
°F
Seward
36°F
S 2 mph
Feels like: 36°F
Precip: 100%
World Resorts USA Seward Weather

Seward Sea Water Temperature

Current Sea Water Temperature:
+43.6°F
Maximum Sea Water Temperature in May: 51.6°F
Minimum Sea Water Temperature in May: 39.0°F
Average water temperature in May: 44.7°F

Sea Water Temperature for the Last 10 Days:

May 14 43.6°F May 09 42.8°F
May 13 43.2°F May 08 43.6°F
May 12 44.0°F May 07 45.2°F
May 11 42.0°F May 06 45.0°F
May 10 41.8°F May 05 45.6°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
Boston +56
Chicago +56
Hawaii +78
Honolulu +78
Houston +98
Las Vegas +102
Los Angeles +76
Maui +72
Miami +90
Miami Beach +92
New York +70
San Diego +72
San Francisco +72
Sarasota +96
Tampa +96
24 Hours Weather Forecast
Seward
Local time: 10:00
14 may, thursday
1200 38°F
SW
2 mph
1500 40°F
N
2 mph
1800 40°F
NW
2 mph
2100 34°F
S
2 mph
15 may, friday
0000 26°F
S
6 mph
0300 24°F
S
6 mph
0600 24°F
S
4 mph
0900 36°F
E
1 mph