Measurements:
°C
°F
CURRENT WEATHER
13:29
Mount Desert Island
46°F
W 6 mph
Feels like: 42°F
Precip: 0%
World Resorts USA Mount Desert Island Weather September Weather in Mount Desert Island

Mount Desert Island Weather: September

Average Day Temperature: 68.2°F
Average Night Temperature: 56.8°F
Sea Water Temperature: 59.5°F
Number of Sunny Days: 13 days
Sunshine Hours: 11.8 - 13.2 hours
Number of Rainy Days: 2 days
Precipitation Totals: 1.4 in
detailed information

Air Temperature in September, °F

Select Year: 2024 2023 2022
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
0
14
28
42
56
70
84
98
112
Day Temperature   
Night Temperature

The highest day temperature in September 2024 was 85°F. The lowest night temperature was 47°F. The average values for day and night temperatures during September were 70.8°F и 55.4°F respectivly.

Mount Desert Island Water Sea Temperature in September, °F

Select Year: 2024 2023 2022
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
51
54
57
60
63
66
69
72

The average sea surface temperature in September 2024 for Mount Desert Island was 58.8°F. The maximum and minimum values were 56.4°F and 61.4°F respectively.

Sunny, Cloudy and Gloomy days
Sunny days
Cloudy days
Gloomy days
43%
27%
30%

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

Precipitation Totals in September, in

Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
0.0
0.3
0.6
0.8
1.1
1.4
1.7
2.0

Precipitation total in September for Mount Desert Island is 1.4 in. It makes september one of the most rainy months of the year.

Wind Speed in September, mph
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
0.0
1.8
3.6
5.4
7.3
9.1
10.9
12.7

The average wind speed in September is 7.1 mph. It makes September one of the most windless months of the year for Mount Desert Island.

Average Sunny Hours Per Day
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
0.0
1.3
2.6
4.0
5.3
6.6
7.9
9.2
10.6

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 Mount Desert Island in September is 7.2 hours.

Best Time to Visit Mount Desert Island
The most sunny months:
September 13 days
October 12 days
November 12 days
The most warm months:
July 75.2 °F
August 74.3 °F
June 68.5 °F
Warmest sea temperature:
August 63.2 °F
July 61.3 °F
September 59.5 °F
The most cold months:
January 27.1 °F
February 27.7 °F
December 34.2 °F
The most rainy months:
December 3 days
July 3 days
April 3 days
The most windy months:
February 11 mph
March 10 mph
December 10 mph
more details

Mount Desert Island on the Weather Map

USA Resorts:
NAME
F°
Boston +44
Chicago +40
Hawaii +76
Honolulu +76
Houston +80
Las Vegas +46
Los Angeles +60
Miami +78
New York +58
Orlando +80
San Diego +60
San Francisco +46
Sarasota +78
Tampa +78
Washington +66
all resorts
24 Hours Weather Forecast
Mount Desert Island
Local time: 13:29
19 mar, wednesday
1500 48°F
NW
7 mph
1800 42°F
NW
6 mph
2100 34°F
NW
5 mph
20 mar, thursday
0000 32°F
N
4 mph
0300 32°F
NW
6 mph
0600 32°F
NW
6 mph
0900 34°F
NW
7 mph
1200 34°F
NW
9 mph