Measurements:
°C
°F
Duluth
12°F
N 6 mph
Feels like: 0°F
Precip: 0%
World Resorts USA Duluth Weather September Weather in Duluth

Duluth Weather: September

Average Day Temperature: 69.8°F
Average Night Temperature: 54.8°F
Sea Water Temperature: 64.1°F
Number of Sunny Days: 15 days
Sunshine Hours: 11.7 - 13.3 hours
Number of Rainy Days: 2 days
Precipitation Totals: 0.8 in

Air Temperature in September, °F

Select Year: 2024 2023 2022

The highest day temperature in September 2024 was 90°F. The lowest night temperature was 41°F. The average values for day and night temperatures during September were 75.8°F и 55.4°F respectivly.

Duluth Water Sea Temperature in September, °F

Select Year: 2024 2023 2022

The average sea surface temperature in September 2024 for Duluth was 67.0°F. The maximum and minimum values were 64.6°F and 69.8°F respectively.

Sunny, Cloudy and Gloomy days

Most of the days in September are sunny but you can also expect cloudy and gloomy days.

Precipitation Totals in September, in

Precipitation total in September for Duluth is 0.8 in.

Wind Speed in September, mph

The average wind speed in September is 7.0 mph. It makes September one of the most windless months of the year for Duluth.

Average Sunny Hours Per Day

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Duluth in September is 7.9 hours.

Best Time to Visit Duluth
The most sunny months:
September 15 days
August 14 days
July 13 days
The most warm months:
July 76.9 °F
August 76.5 °F
June 70.9 °F
Warmest sea temperature:
August 67.3 °F
July 65.5 °F
September 64.1 °F
The most cold months:
February 15.3 °F
January 15.5 °F
December 22.5 °F
The most rainy months:
August 3 days
June 3 days
July 3 days
The most windy months:
April 9 mph
March 8 mph
November 8 mph

Duluth on the Weather Map

USA Resorts:
NAME
Boston +10
Chicago +20
Hawaii +78
Honolulu +78
Houston +46
Las Vegas +50
Los Angeles +54
Miami +62
New York +16
Orlando +50
San Diego +54
San Francisco +54
Sarasota +48
Tampa +46
Washington +20
24 Hours Weather Forecast
Duluth
Local time: 04:03
22 dec, sunday
0600 12°F
N
6 mph
0900 14°F
N
6 mph
1200 20°F
N
9 mph
1500 22°F
N
7 mph
1800 22°F
NW
4 mph
2100 22°F
NW
2 mph
23 dec, monday
0000 22°F
NW
2 mph
0300 24°F
SW
2 mph