World Resorts USA Juneau Weather

Juneau weather in September

Weather in Juneau: September

Average day temperature: 51.9°F
Average night temperature: 48.3°F
Sea water temperature: 51.5°F
Number of sunny days: 2 days
Day length: 11.5 - 14.0 hours
Number of rainy days: 9 days
Precipitation totals: 4.5 in.

Air temperature in September, °F

Show year:
2024
2023
2022

The highest day temperature during September of 2024 was 53°F. At the same time the lowest night temperature was 34°F. Day and night temperature averages during September were 49.4°F and 45.5°F.

Sea water temperature in Juneau in September, °F

Show year:
2024
2023
2022

The average sea water temperature in September of 2024 was 50.8°F. The highest and lowest sea temperatures during the month were 54.1°F and 49.1°F.

Sunny, partly cloudy and cloudy days

Mostly all days in September are cloudy but sunny and partly cloudy days are also possible.

Precipitation total in September, in.

Precipitation total value in Juneau in September is 4.5 in. Other months of the year show relatively similar values.

Wind speed in September, mph

The average wind speed value in September is 5.3 mph

Average sunny hours

This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in September is: 2.4.

Best time for vacation in Juneau

Sunniest months:
May 7 days
July 6 days
March 6 days
Warmest months:
July 57.9 °F
August 57.5 °F
June 55.3 °F
Warmest sea temp:
July 56.7 °F
August 56.1 °F
June 52.1 °F
Coldest months:
January 28.9 °F
December 29.6 °F
February 31.2 °F
Rainiest months:
October 12 days
November 9 days
September 9 days
Windiest months:
November 7.6 mph
January 7.3 mph
December 7.2 mph

Juneau on a weather map

Juneau
+7°F
SW 9 mph
Feels like: -6°F
Precip.: 0%
Places in USA:
Name
°F
+43°F
+45°F
+72°F
+72°F
+50°F
+57°F
+66°F
+68°F
+43°F
+59°F
+52°F
+55°F
+52°F
+63°F
+37°F
24 Hours Forecast
Juneau
Local time: 01:04
November 24, sunday
0300
9°F
SW
7 mph
0600
9°F
SW
6 mph
0900
9°F
SW
6 mph
1200
16°F
SW
5 mph
1500
19°F
SW
4 mph
1800
16°F
SW
5 mph
2100
14°F
W
4 mph
November 25, monday
0000
14°F
W
4 mph
Units of measurement: °C / °F