Measurements:
°C
°F
CURRENT WEATHER
05:41
Girdwood
42°F
W 9 mph
Feels like: 36°F
Precip: 26%
World Resorts USA Girdwood Weather

7 Day Weather Forecast

09.15
tue
DAY
44°F
NW 14 mph
precip
28%
NIGHT
42°F
NE 1 mph
precip
41%
09.16
wed
DAY
46°F
NE 4 mph
precip
4%
NIGHT
40°F
NW 4 mph
precip
29%
09.17
thu
DAY
40°F
NW 6 mph
precip
45%
NIGHT
38°F
W 6 mph
precip
44%
09.18
fri
DAY
40°F
E 4 mph
precip
23%
NIGHT
34°F
NE 4 mph
precip
81%
09.19
sat
DAY
38°F
NW 6 mph
precip
38%
NIGHT
34°F
NW 3 mph
precip
43%
09.20
sun
DAY
38°F
NW 4 mph
precip
30%
NIGHT
36°F
W 2 mph
precip
27%
09.21
mon
DAY
36°F
E 3 mph
precip
50%
NIGHT
36°F
NW 2 mph
precip
27%

Girdwood Sea Water Temperature in September, °F

Select Year: 2026 2025 2024

The average sea surface temperature in September 2026 for Girdwood was 9.9°F. The maximum and minimum values were 9.0°F and 10.9°F respectively.

Girdwood on the Weather Map

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 58.4 °F
June 58.0 °F
Warmest sea temperature:
August 55.8 °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 4 days
The most windy months:
January 6 mph
February 6 mph
December 6 mph
more details