Measurements:
°C
°F
CURRENT WEATHER
11:08
Islamorada
90°F
W 11 mph
Feels like: 98°F
Precip: 5%
World Resorts USA Islamorada Weather

7 Day Weather Forecast

09.15
tue
DAY
90°F
W 11 mph
precip
5%
NIGHT
90°F
W 20 mph
precip
20%
09.16
wed
DAY
88°F
SW 16 mph
precip
19%
NIGHT
88°F
W 19 mph
precip
16%
09.17
thu
DAY
88°F
W 14 mph
precip
26%
NIGHT
88°F
W 16 mph
precip
11%
09.18
fri
DAY
88°F
W 9 mph
precip
17%
NIGHT
88°F
W 13 mph
precip
13%
09.19
sat
DAY
88°F
NW 7 mph
precip
8%
NIGHT
88°F
W 11 mph
precip
52%
09.20
sun
DAY
88°F
N 5 mph
precip
11%
NIGHT
88°F
N 7 mph
precip
47%
09.21
mon
DAY
88°F
NE 6 mph
precip
14%
NIGHT
88°F
NW 6 mph
precip
9%

Islamorada Sea Water Temperature in September, °F

Select Year: 2026 2025 2024

The average sea surface temperature in September 2026 for Islamorada was 31.1°F. The maximum and minimum values were 30.2°F and 31.6°F respectively.

Islamorada on the Weather Map

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 88.4 °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:
June 3 days
September 3 days
July 3 days
The most windy months:
March 14 mph
November 14 mph
April 13 mph
more details