World Resorts USA Juneau Weather

Juneau weather in September

Weather in Juneau: September

Average day temperature: 52.5°F
Average night temperature: 49.0°F
Sea water temperature: 51.7°F
Number of sunny days: 3 days
Day length: 11.5 - 14.0 hours
Number of rainy days: 9 days
Precipitation totals: 4.6 in.

Air temperature in September, °F

Show year:
2023
2022
2021

The highest day temperature during September of 2023 was 59°F. At the same time the lowest night temperature was 41°F. Day and night temperature averages during September were 51.7°F and 48.7°F.

Sea water temperature in Juneau in September, °F

Show year:
2023
2022
2021

The average sea water temperature in September of 2023 was 52.2°F. The highest and lowest sea temperatures during the month were 57.9°F and 48.2°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 4.6 in. Other months of the year show relatively similar values.

Wind speed in September, mph

The average wind speed value in September is 5.5 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: 2.6.

Best time for vacation in Juneau

Sunniest months:
May 8 days
July 7 days
March 6 days
Warmest months:
July 58.9 °F
August 57.7 °F
June 55.6 °F
Warmest sea temp:
July 56.9 °F
August 56.2 °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
+46°F
W 2 mph
Feels like: +46°F
Precip.: 0%
Places in USA:
Name
°F
+64°F
+82°F
+73°F
+73°F
+70°F
+64°F
+82°F
+72°F
+84°F
+61°F
+59°F
+84°F
+84°F
+88°F
+73°F
24 Hours Forecast
Juneau
Local time: 09:19
May 02, thursday
1200
50°F
W
2 mph
1500
50°F
SW
4 mph
1800
52°F
SW
4 mph
2100
45°F
SW
6 mph
May 03, friday
0000
43°F
SW
6 mph
0300
43°F
SW
6 mph
0600
43°F
SW
6 mph
0900
50°F
SW
4 mph
Units of measurement: °C / °F