Measurements:
°C
°F
Seward
48°F
NW 4 mph
Feels like: 46°F
Precip: 34%
World Resorts USA Seward Weather

7 Day Weather Forecast

09.15
tue
DAY
48°F
NW 6 mph
precip
70%
NIGHT
48°F
SE 6 mph
precip
20%
09.16
wed
DAY
50°F
SE 2 mph
precip
10%
NIGHT
44°F
SE 3 mph
precip
11%
09.17
thu
DAY
44°F
NW 5 mph
precip
45%
NIGHT
42°F
S 5 mph
precip
29%
09.18
fri
DAY
46°F
SE 3 mph
precip
14%
NIGHT
40°F
SW 2 mph
precip
16%
09.19
sat
DAY
44°F
NW 6 mph
precip
38%
NIGHT
42°F
NE 6 mph
precip
22%
09.20
sun
DAY
46°F
N 3 mph
precip
17%
NIGHT
44°F
S 4 mph
precip
23%
09.21
mon
DAY
46°F
SW 4 mph
precip
8%
NIGHT
42°F
W 1 mph
precip
18%

Seward Sea Water Temperature in September, °F

Select Year: 2026 2025 2024

The average sea surface temperature in September 2026 for Seward was 11.5°F. The maximum and minimum values were 11.1°F and 11.9°F respectively.

Seward on the Weather Map

Best Time to Visit Seward
The most sunny months:
January 7 days
November 7 days
March 6 days
The most warm months:
July 61.3 °F
August 60.2 °F
June 58.4 °F
Warmest sea temperature:
August 56.7 °F
July 55.3 °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