World Resorts USA Islamorada Weather

Islamorada sea water temperature

Current sea water temperature:
+71.2°F
Minimum sea water temperature in February: 79.5°F
Maximum sea water temperature in February: 63.0°F
Average sea water temperature in February: 74.2°F

Sea water temperature for the last 10 days:

February 26 71.2°F February 21 75.9°F
February 25 73.0°F February 20 74.3°F
February 24 75.2°F February 19 74.1°F
February 23 76.1°F February 18 74.3°F
February 22 76.5°F February 17 73.8°F

When is the warmest sea in Islamorada?

Based on the data about daily sea water temperature for the last three years the warmest sea in Islamorada was noticed in August, July and September.

Monthly Sea Temperatures in Islamorada, °F

Sea water temperature in August, °F

Show year:
2025
2024
2023

The average sea water temperature in August of 2025 was 88.8°F. The highest and lowest sea temperatures during the month were 90.5°F and 86.5°F.

Sea water temperature in July, °F

Show year:
2025
2024
2023

The average sea water temperature in July of 2025 was 86.4°F. The highest and lowest sea temperatures during the month were 88.9°F and 84.7°F.

Sea water temperature in September, °F

Show year:
2025
2024
2023

The average sea water temperature in September of 2025 was 86.7°F. The highest and lowest sea temperatures during the month were 88.5°F and 85.6°F.

Best time for vacation in Islamorada

Sunniest months:
December 12 days
January 11 days
April 11 days
Warmest months:
August 85.2 °F
July 85.1 °F
September 84.5 °F
Warmest sea temp:
August 87.6 °F
July 87.2 °F
September 86.7 °F
Coldest months:
January 70.6 °F
December 73.0 °F
February 73.5 °F
Rainiest months:
June 3 days
September 3 days
July 3 days
Windiest months:
November 13.9 mph
March 13.8 mph
April 13.5 mph

Islamorada on a weather map

Islamorada
+66°F
NW 12 mph
Feels like: +66°F
Precip.: 0%
Places in USA:
Name
°F
+52°F
+70°F
+70°F
+63°F
+61°F
+73°F
+75°F
+66°F
+41°F
+63°F
+55°F
+68°F
+68°F
+73°F
+34°F
24 Hours Forecast
Islamorada
Local time: 13:16
February 26, thursday
1500
66°F
NW
9 mph
1800
66°F
W
9 mph
2100
64°F
W
9 mph
February 27, friday
0000
64°F
W
9 mph
0300
66°F
W
6 mph
0600
66°F
W
6 mph
0900
66°F
W
7 mph
1200
66°F
W
7 mph
Units of measurement: °C / °F