Measurements:
°C
°F
Islamorada
78°F
W 14 mph
Feels like: 82°F
Precip: 0%
World Resorts USA Islamorada Weather May Weather in Islamorada

Islamorada Weather: May

Average Day Temperature: 84.6°F
Average Night Temperature: 82.2°F
Sea Water Temperature: 86.6°F
Number of Sunny Days: 10 days
Sunshine Hours: 13.1 - 13.6 hours
Number of Rainy Days: 2 days
Precipitation Totals: 1.1 in

Air Temperature in May, °F

Select Year: 2025 2024 2023

The highest day temperature in May 2025 was 90°F. The lowest night temperature was 78°F. The average values for day and night temperatures during May were 85.3°F и 82.0°F respectivly.

Islamorada Water Sea Temperature in May, °F

Select Year: 2025 2024 2023

The average sea surface temperature in May 2025 for Islamorada was 87.4°F. The maximum and minimum values were 82.4°F and 91.4°F respectively.

Sunny, Cloudy and Gloomy days

Most of the days in May are cloudy but you can also expect sunny or gloomy days.

Precipitation Totals in May, in

Precipitation total in May for Islamorada is 1.1 in.

Wind Speed in May, mph

The average wind speed in May is 11.4 mph.

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 Islamorada in May is 7.6 hours.

Best Time to Visit Islamorada
The most sunny months:
April 11 days
May 10 days
March 10 days
The most warm months:
August 89.1 °F
July 89.0 °F
September 88.4 °F
Warmest sea temperature:
August 91.8 °F
July 91.3 °F
September 90.8 °F
The most cold months:
January 73.1 °F
December 75.0 °F
February 76.1 °F
The most rainy months:
June 3 days
September 3 days
July 3 days
The most windy months:
November 14 mph
March 14 mph
April 13 mph

Islamorada on the Weather Map

USA Resorts:
NAME
Chicago -2
Hawaii +78
Honolulu +78
Houston +44
Las Vegas +40
Los Angeles +52
Maui +72
Miami +72
Miami Beach +80
New York +18
San Diego +54
San Francisco +46
Sarasota +62
Tampa +62
Washington +28
24 Hours Weather Forecast
Islamorada
Local time: 03:10
05 dec, friday
0600 78°F
W
12 mph
0900 78°F
NW
11 mph
1200 78°F
W
10 mph
1500 80°F
NW
9 mph
1800 78°F
NW
7 mph
2100 78°F
NW
7 mph
06 dec, saturday
0000 78°F
NW
6 mph
0300 76°F
W
4 mph