Measurements:
°C
°F
Girdwood
-20°F
S 6 mph
Feels like: -36°F
Precip: 0%
World Resorts USA Girdwood Weather

Girdwood Sea Water Temperature

Current Sea Water Temperature:
+33.8°F
Maximum Sea Water Temperature in February: 35.8°F
Minimum Sea Water Temperature in February: 33.8°F
Average water temperature in February: 35.0°F

Sea Water Temperature for the Last 10 Days:

February 21 33.8°F February 16 33.8°F
February 20 33.8°F February 15 34.2°F
February 19 33.8°F February 14 34.2°F
February 18 34.0°F February 13 34.6°F
February 17 33.8°F February 12 34.6°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 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 14.0 °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 +28
Hawaii +72
Honolulu +72
Houston +74
Las Vegas +34
Los Angeles +40
Maui +66
Miami +74
Miami Beach +78
New York +38
San Diego +44
San Francisco +42
Sarasota +68
Tampa +70
Washington +38
24 Hours Weather Forecast
Girdwood
Local time: 04:21
21 feb, saturday
0600 -22°F
S
5 mph
0900 -18°F
S
5 mph
1200 0°F
SE
4 mph
1500 6°F
SE
4 mph
1800 -10°F
S
6 mph
2100 -8°F
S
4 mph
22 feb, sunday
0000 -6°F
S
4 mph
0300 -6°F
S
4 mph