Measurements:
°C
°F
Girdwood
32°F
SW 7 mph
Feels like: 26°F
Precip: 100%
World Resorts USA Girdwood Weather

Girdwood Sea Water Temperature

Current Sea Water Temperature:
+34.8°F
Maximum Sea Water Temperature in January: 37.0°F
Minimum Sea Water Temperature in January: 34.6°F
Average water temperature in January: 36.1°F

Sea Water Temperature for the Last 10 Days:

January 29 34.8°F January 24 35.0°F
January 28 34.8°F January 23 35.2°F
January 27 34.6°F January 22 35.4°F
January 26 34.8°F January 21 36.2°F
January 25 35.0°F January 20 36.2°F

When is the Warmest Sea for Girdwood?

According to our data for the last three years for Girdwood 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 Girdwood was 53.1°F. The maximum and minimum values were 50.0°F and 56.6°F respectively.

Sea Water Temperature in July

Select Year: 2025 2024 2023

The average sea surface temperature in July 2025 for Girdwood was 55.4°F. The maximum and minimum values were 53.0°F and 57.6°F respectively.

Sea Water Temperature in September

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Girdwood was 51.6°F. The maximum and minimum values were 49.4°F and 54.0°F respectively.

Best Time to Visit Girdwood
The most sunny months:
January 7 days
November 7 days
December 7 days
The most warm months:
July 61.6 °F
August 59.0 °F
June 58.3 °F
Warmest sea temperature:
August 55.9 °F
July 55.4 °F
September 51.8 °F
The most cold months:
December 11.5 °F
January 13.7 °F
November 17.2 °F
The most rainy months:
September 7 days
August 5 days
October 5 days
The most windy months:
January 6 mph
February 6 mph
December 6 mph

Girdwood on the Weather Map

USA Resorts:
NAME
Chicago 0
Hawaii +74
Honolulu +74
Houston +38
Las Vegas +48
Los Angeles +56
Maui +68
Miami +64
Miami Beach +70
New York +12
San Diego +60
San Francisco +50
Sarasota +58
Tampa +58
Washington +12
24 Hours Weather Forecast
Girdwood
Local time: 06:54
29 jan, thursday
0900 28°F
SW
9 mph
1200 34°F
SW
10 mph
1500 36°F
W
10 mph
1800 34°F
W
17 mph
2100 34°F
W
16 mph
30 jan, friday
0000 32°F
W
9 mph
0300 28°F
W
9 mph
0600 30°F
W
9 mph