Measurements:
°C
°F
Marco Island
92°F
E 14 mph
Feels like: 100°F
Precip: 0%
World Resorts USA Marco Island Weather

7 Day Weather Forecast

05.14
thu
DAY
90°F
SE 13 mph
precip
0%
NIGHT
80°F
SE 14 mph
precip
0%
05.15
fri
DAY
84°F
E 6 mph
precip
0%
NIGHT
82°F
SE 6 mph
precip
0%
05.16
sat
DAY
86°F
N 7 mph
precip
0%
NIGHT
82°F
W 11 mph
precip
100%
05.17
sun
DAY
86°F
NW 11 mph
precip
100%
NIGHT
82°F
W 10 mph
precip
100%
05.18
mon
DAY
88°F
NW 11 mph
precip
100%
NIGHT
82°F
W 12 mph
precip
0%
05.19
tue
DAY
86°F
NW 11 mph
precip
100%
NIGHT
82°F
W 10 mph
precip
40%
05.20
wed
DAY
86°F
NW 9 mph
precip
23%
NIGHT
82°F
W 9 mph
precip
45%

Marco Island Sea Water Temperature in May, °F

Select Year: 2025 2024 2023

The average sea surface temperature in May 2025 for Marco Island was 28.6°F. The maximum and minimum values were 26.3°F and 31.1°F respectively.

Marco Island on the Weather Map

Best Time to Visit Marco Island
The most sunny months:
March 19 days
April 18 days
December 16 days
The most warm months:
August 92.2 °F
July 92.0 °F
September 90.6 °F
Warmest sea temperature:
August 91.7 °F
July 91.2 °F
September 90.6 °F
The most cold months:
January 72.3 °F
December 75.3 °F
February 76.3 °F
The most rainy months:
June 6 days
July 5 days
September 4 days
The most windy months:
April 10 mph
November 10 mph
January 9 mph