Measurements:
°C
°F
Girdwood
26°F
E 2 mph
Feels like: 24°F
Precip: 100%
World Resorts USA Girdwood Weather

Girdwood Sea Water Temperature

Current Sea Water Temperature:
+37.0°F
Maximum Sea Water Temperature in December: 38.6°F
Minimum Sea Water Temperature in December: 36.2°F
Average water temperature in December: 37.5°F

Sea Water Temperature for the Last 10 Days:

December 04 37.0°F November 29 38.4°F
December 03 38.0°F November 28 38.6°F
December 02 38.2°F November 27 38.6°F
December 01 38.2°F November 26 38.6°F
November 30 38.4°F November 25 38.6°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 8 days
November 7 days
April 6 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:
January 14.0 °F
December 14.3 °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
December 6 mph
February 6 mph

Girdwood on the Weather Map

USA Resorts:
NAME
Chicago 0
Hawaii +78
Honolulu +78
Houston +46
Las Vegas +44
Los Angeles +56
Maui +72
Miami +72
Miami Beach +80
New York +20
San Diego +58
San Francisco +48
Sarasota +64
Tampa +64
Washington +28
24 Hours Weather Forecast
Girdwood
Local time: 20:59
04 dec, thursday
2100 26°F
E
2 mph
05 dec, friday
0000 28°F
E
2 mph
0300 28°F
E
3 mph
0600 24°F
SE
3 mph
0900 24°F
SE
4 mph
1200 24°F
SE
3 mph
1500 26°F
SE
2 mph
1800 22°F
S
4 mph