World Resorts USA Seward Weather

Seward sea water temperature

Current sea water temperature:
+41.4°F
Minimum sea water temperature in January: 44.1°F
Maximum sea water temperature in January: 39.4°F
Average sea water temperature in January: 41.3°F

Sea water temperature for the last 10 days:

January 12 41.4°F January 7 41.9°F
January 11 41.4°F January 6 41.9°F
January 10 41.7°F January 5 42.1°F
January 9 41.9°F January 4 42.4°F
January 8 41.7°F January 3 42.6°F

When is the warmest sea in Seward?

Based on the data about daily sea water temperature for the last three years the warmest sea in Seward was noticed in August, July and September.

Monthly Sea Temperatures in Seward, °F

Sea water temperature in August, °F

Show year:
2025
2024
2023

The average sea water temperature in August of 2025 was 55.9°F. The highest and lowest sea temperatures during the month were 58.3°F and 53.4°F.

Sea water temperature in July, °F

Show year:
2025
2024
2023

The average sea water temperature in July of 2025 was 54.6°F. The highest and lowest sea temperatures during the month were 56.1°F and 53.1°F.

Sea water temperature in September, °F

Show year:
2025
2024
2023

The average sea water temperature in September of 2025 was 54.0°F. The highest and lowest sea temperatures during the month were 55.2°F and 52.7°F.

Best time for vacation in Seward

Sunniest months:
January 7 days
November 7 days
October 6 days
Warmest months:
July 61.0 °F
August 59.8 °F
June 58.3 °F
Warmest sea temp:
August 56.2 °F
July 55.2 °F
September 53.3 °F
Coldest months:
January 20.6 °F
December 20.6 °F
February 25.5 °F
Rainiest months:
August 5 days
September 5 days
October 4 days
Windiest months:
December 6.2 mph
January 5.4 mph
November 5.3 mph

Seward on a weather map

Seward
+10°F
S 7 mph
Feels like: +0°F
Precip.: 0%
Places in USA:
Name
°F
+39°F
+73°F
+73°F
+64°F
+70°F
+70°F
+75°F
+68°F
+36°F
+70°F
+57°F
+63°F
+61°F
+57°F
+36°F
24 Hours Forecast
Seward
Local time: 17:20
January 12, monday
1800
10°F
S
7 mph
2100
14°F
S
3 mph
January 13, tuesday
0000
21°F
S
2 mph
0300
23°F
SW
2 mph
0600
25°F
SW
3 mph
0900
25°F
S
7 mph
1200
27°F
S
9 mph
1500
28°F
S
8 mph
Units of measurement: °C / °F