World Resorts USA Marco Island Weather

Marco Island weather in September

Weather in Marco Island: September

Average day temperature: 86.8°F
Average night temperature: 78.6°F
Sea water temperature: 86.6°F
Number of sunny days: 5 days
Day length: 11.9 - 12.7 hours
Number of rainy days: 4 days
Precipitation totals: 2.4 in.

Air temperature in September, °F

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2023
2022
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Day temperature   
Night temperature

The highest day temperature during September of 2024 was 88°F. At the same time the lowest night temperature was 79°F. Daily and nightly averages during September were 86.6°F and 82.7°F.

Sea water temperature in Marco Island in September, °F

Show year:
2024
2023
2022
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80
82
84
86
88
90
92
94

The average sea water temperature in September of 2024 was 87.2°F. The highest and lowest sea temperatures during the month were 88.9°F and 85.5°F.

Sunny, partly cloudy and cloudy days
Sunny days
Partly cloudy days
Cloudy days
17%
57%
27%

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

Precipitation total in September, in.

jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0.0
0.6
1.2
1.9
2.5
3.1
3.7
4.4
2.8
3.2
3.6
1.2
2.4
2.8
3.2
3.6
1.2

Precipitation total value in Marco Island in September is 2.4 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
1.7
3.5
5.2
6.9
8.7
10.4
12.1
9.7
10.1
9.6
7.5
6.8
7.7
8.5
9.8
9.8
9.2
9.7
9.7
10.1
9.6
7.5
7.5
6.8
7.7
8.5
9.8
9.8
9.2
9.7

The average wind speed value in September is 7.5 mph It makes September one of the least windy months of the year.

Average sunny hours
jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0.0
1.6
3.2
4.9
6.5
8.1
9.7
11.3
13.0
6.7
6.6
7.3
6.7
7.1
7.2
9.5
9.2
8.6
7.7
6.4
6.7
6.6
7.3
6.4
6.7
7.1
7.2
9.5
9.2
8.6
7.7
6.4

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: 6.4.

Best time for vacation in Marco Island

Sunniest months:
March 19 days
April 16 days
December 14 days
Warmest months:
July 88.1 °F
August 88.1 °F
September 86.8 °F
Warmest sea temp:
August 87.3 °F
July 87.2 °F
September 86.6 °F
Coldest months:
January 69.8 °F
December 72.0 °F
February 74.1 °F
Rainiest months:
June 7 days
July 6 days
August 5 days
Windiest months:
November 10.1 mph
April 9.8 mph
March 9.8 mph

Marco Island on a weather map

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24 Hours Forecast
Marco Island
Local time: 20:44
April 11, friday
2100
72°F
SE
17 mph
April 12, saturday
0000
70°F
SE
17 mph
0300
70°F
SE
16 mph
0600
70°F
SE
16 mph
0900
70°F
S
15 mph
1200
73°F
SE
15 mph
1500
75°F
SE
21 mph
1800
72°F
SE
23 mph
Units of measurement: °C / °F