Measurements:
°C
°F
Girdwood
56°F
W 7 mph
Feels like: 54°F
Precip: 37%
World Resorts USA Girdwood Weather

Girdwood Sea Water Temperature

Current Sea Water Temperature:
+55.0°F
Maximum Sea Water Temperature in August: 60.0°F
Minimum Sea Water Temperature in August: 49.2°F
Average water temperature in August: 56.0°F

Sea Water Temperature for the Last 10 Days:

August 05 55.0°F July 31 51.4°F
August 04 55.4°F July 30 50.6°F
August 03 55.8°F July 29 52.0°F
August 02 54.6°F July 28 51.4°F
August 01 53.0°F July 27 53.0°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: 2026 2025 2024

The average sea surface temperature in July 2026 for Girdwood was 53.9°F. The maximum and minimum values were 50.6°F and 56.6°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 60.8 °F
August 59.0 °F
June 58.0 °F
Warmest sea temperature:
August 55.9 °F
July 55.2 °F
September 51.8 °F
The most cold months:
December 11.5 °F
January 14.0 °F
November 17.2 °F
The most rainy months:
September 7 days
October 5 days
August 5 days
The most windy months:
January 6 mph
February 6 mph
December 6 mph

Girdwood on the Weather Map

USA Resorts:
NAME
Boston +94
Chicago +82
Hawaii +82
Houston +102
Las Vegas +124
Los Angeles +92
Maui +78
Miami +92
Myrtle Beach +84
New York +84
San Diego +80
San Francisco +62
Santa Monica +80
Sarasota +92
Washington +88
24 Hours Weather Forecast
Girdwood
Local time: 10:24
05 aug, wednesday
1200 58°F
NW
6 mph
1500 60°F
NW
7 mph
1800 58°F
NW
6 mph
2100 56°F
NW
5 mph
06 aug, thursday
0000 52°F
W
4 mph
0300 50°F
W
4 mph
0600 50°F
W
3 mph
0900 56°F
NW
2 mph