World Resorts USA Ketchikan Weather

Ketchikan weather in September

Weather in Ketchikan: September

Average day temperature: 55.3°F
Average night temperature: 52.9°F
Sea water temperature: 55.8°F
Number of sunny days: 6 days
Day length: 11.6 - 13.8 hours
Number of rainy days: 9 days
Precipitation totals: 4.2 in.

Air temperature in September, °F

Show year:
2024
2023
2022
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27
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31
0
10
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80
Day temperature   
Night temperature

The highest day temperature during September of 2024 was 62°F. At the same time the lowest night temperature was 45°F. Daily and nightly averages during September were 55.0°F and 51.3°F.

Sea water temperature in Ketchikan in September, °F

Show year:
2024
2023
2022
1
3
5
7
9
11
13
15
17
19
21
23
25
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29
31
47
50
53
56
59
62
65

The average sea water temperature in September of 2024 was 54.9°F. The highest and lowest sea temperatures during the month were 56.5°F and 51.6°F.

Sunny, partly cloudy and cloudy days
Sunny days
Partly cloudy days
Cloudy days
20%
10%
70%

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

Precipitation total in September, in.

jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0.0
1.0
2.1
3.1
4.1
5.2
6.2
7.2
3.9
6.0
4.9
4.7
2.8
2.6
2.3
3.4
3.6
3.8
5.1
3.9
6.0
4.9
4.2
4.7
2.8
2.6
2.3
3.4
3.6
3.8
5.1

Precipitation total value in Ketchikan in September is 4.2 in. Other months of the year show relatively similar values.

Wind speed in September, mph
jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0.0
2.2
4.5
6.7
9.0
11.2
13.5
15.7
11.6
13.1
10.9
7.6
6.5
7.5
7.6
9.5
11.1
11.0
12.0
11.6
13.1
10.9
9.3
7.6
6.5
7.5
7.6
9.5
11.1
11.0
12.0

The average wind speed value in September is 9.3 mph

Average sunny hours
jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0.0
1.2
2.4
3.6
4.9
6.1
7.3
8.5
1.8
2.1
2.9
7.1
6.4
6.6
5.3
5.2
3.5
2.9
1.8
1.8
2.1
2.9
3.8
7.1
6.4
6.6
5.3
5.2
3.5
2.9
1.8

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: 3.8.

Best time for vacation in Ketchikan

Sunniest months:
August 9 days
July 7 days
March 6 days
Warmest months:
August 60.1 °F
July 59.2 °F
June 55.5 °F
Warmest sea temp:
August 60.2 °F
July 59.4 °F
September 55.8 °F
Coldest months:
January 36.1 °F
December 36.5 °F
February 36.8 °F
Rainiest months:
November 12 days
January 11 days
October 10 days
Windiest months:
November 13.1 mph
January 12.0 mph
December 11.6 mph

Ketchikan on a weather map

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24 Hours Forecast
Ketchikan
Local time: 10:22
April 25, friday
1200
43°F
N
9 mph
1500
45°F
NE
12 mph
1800
45°F
NE
11 mph
2100
43°F
E
10 mph
April 26, saturday
0000
43°F
SE
4 mph
0300
41°F
S
5 mph
0600
41°F
SW
5 mph
0900
43°F
S
4 mph
Units of measurement: °C / °F