Measurements:
°C
°F
Islamorada
86°F
NW 7 mph
Feels like: 94°F
Precip: 9%
World Resorts USA Islamorada Weather

Islamorada Sea Water Temperature

Current Sea Water Temperature:
+87.8°F
Maximum Sea Water Temperature in October: 91.2°F
Minimum Sea Water Temperature in October: 81.4°F
Average water temperature in October: 86.6°F

Sea Water Temperature for the Last 10 Days:

October 05 87.8°F September 30 87.2°F
October 04 86.6°F September 29 89.4°F
October 03 86.2°F September 28 89.4°F
October 02 86.0°F September 27 89.8°F
October 01 87.8°F September 26 90.2°F

When is the Warmest Sea for Islamorada?

According to our data for the last three years for Islamorada the highest average sea water temperature was in August, July and September.

Average Water Temperature by Month, °F

Sea Water Temperature in August

Select Year: 2026 2025 2024

The average sea surface temperature in August 2026 for Islamorada was 92.7°F. The maximum and minimum values were 90.4°F and 94.6°F respectively.

Sea Water Temperature in July

Select Year: 2026 2025 2024

The average sea surface temperature in July 2026 for Islamorada was 92.6°F. The maximum and minimum values were 91.6°F and 94.4°F respectively.

Sea Water Temperature in September

Select Year: 2026 2025 2024

The average sea surface temperature in September 2026 for Islamorada was 91.0°F. The maximum and minimum values were 86.8°F and 93.2°F respectively.

Best Time to Visit Islamorada
The most sunny months:
April 13 days
December 12 days
February 12 days
The most warm months:
August 89.8 °F
July 89.3 °F
September 88.3 °F
Warmest sea temperature:
August 91.9 °F
July 91.5 °F
September 90.8 °F
The most cold months:
January 72.9 °F
February 75.2 °F
December 75.6 °F
The most rainy months:
September 4 days
June 3 days
July 3 days
The most windy months:
March 14 mph
November 14 mph
April 13 mph

Islamorada on the Weather Map

USA Resorts:
NAME
F°
Boston +58
Chicago +62
Hawaii +82
Houston +86
Las Vegas +92
Los Angeles +100
Maui +74
Miami +88
Myrtle Beach +70
New York +62
San Diego +84
San Francisco +66
Santa Monica +94
Sarasota +84
Washington +64
24 Hours Weather Forecast
Islamorada
Local time: 19:51
05 oct, monday
2100 86°F
NW
7 mph
06 oct, tuesday
0000 86°F
W
6 mph
0300 86°F
W
6 mph
0600 86°F
NW
4 mph
0900 86°F
NW
6 mph
1200 86°F
NW
5 mph
1500 86°F
N
4 mph
1800 86°F
N
6 mph