19.09
sat
sat
Day
39°F
W 9 mph
Precip.
63%
63%
Night
37°F
W 7 mph
Precip.
46%
46%
20.09
sun
sun
Day
39°F
W 6 mph
Precip.
48%
48%
Night
37°F
SW 2 mph
Precip.
43%
43%
21.09
mon
mon
Day
36°F
NW 8 mph
Precip.
41%
41%
Night
34°F
W 8 mph
Precip.
32%
32%
22.09
tue
tue
Day
36°F
W 8 mph
Precip.
33%
33%
Night
36°F
W 5 mph
Precip.
25%
25%
23.09
wed
wed
Day
41°F
NW 6 mph
Precip.
8%
8%
Night
34°F
W 6 mph
Precip.
31%
31%
24.09
thu
thu
Day
37°F
NW 10 mph
Precip.
30%
30%
Night
36°F
W 9 mph
Precip.
73%
73%
25.09
fri
fri
Day
36°F
W 11 mph
Precip.
80%
80%
Night
36°F
W 8 mph
Precip.
82%
82%
sea water
temperature
temperature
| Girdwood |
monthly
weather
weather
| Girdwood |
current
weather
weather
| Girdwood |
14 days
forecast
forecast
| Girdwood |
Sea water temperature in September, °F
Show year:
2026
2025
2024
The average sea water temperature in September of 2026 was 49.6°F. The highest and lowest sea temperatures during the month were 51.6°F and 48.0°F.
Sea water temperature in October, °F
Show year:
2025
2024
2023
The average sea water temperature in October of 2025 was 46.4°F. The highest and lowest sea temperatures during the month were 48.9°F and 44.1°F.
Air temperature in Girdwood, °F
Precipitation total in Girdwood, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Girdwood
Girdwood on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Girdwood
Local time: 01:22
September 19, saturday
0300
37°F
NW
7 mph
7 mph
0600
37°F
W
8 mph
8 mph
0900
37°F
W
9 mph
9 mph
1200
39°F
W
9 mph
9 mph
1500
36°F
W
10 mph
10 mph
1800
37°F
W
9 mph
9 mph
2100
36°F
W
8 mph
8 mph
September 20, sunday
0000
37°F
W
7 mph
7 mph
