Measurements:
°C
°F
Marco Island
100°F
NE 6 mph
Feels like: 114°F
Precip: 2%
World Resorts USA Marco Island Weather

7 Day Weather Forecast

07.15
wed
DAY
100°F
NW 4 mph
precip
1%
NIGHT
88°F
S 7 mph
precip
4%
07.16
thu
DAY
92°F
SW 6 mph
precip
6%
NIGHT
90°F
E 5 mph
precip
13%
07.17
fri
DAY
90°F
SE 1 mph
precip
3%
NIGHT
90°F
S 2 mph
precip
5%
07.18
sat
DAY
90°F
NE 2 mph
precip
4%
NIGHT
88°F
NE 3 mph
precip
17%
07.19
sun
DAY
90°F
N 8 mph
precip
4%
NIGHT
88°F
N 1 mph
precip
36%
07.20
mon
DAY
90°F
N 5 mph
precip
5%
NIGHT
88°F
SE 3 mph
precip
18%
07.21
tue
DAY
90°F
N 6 mph
precip
7%
NIGHT
88°F
N 3 mph
precip
19%

Marco Island Sea Water Temperature in July, °F

Select Year: 2026 2025 2024

The average sea surface temperature in July 2026 for Marco Island was 31.4°F. The maximum and minimum values were 31.2°F and 31.8°F respectively.

Marco Island on the Weather Map

Best Time to Visit Marco Island
The most sunny months:
March 19 days
April 18 days
May 16 days
The most warm months:
August 92.2 °F
July 92.0 °F
June 90.7 °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