Islamorada
Florida, USA
Long-term weather forecast
Long-term weather forecast

September weather forecast and climate
Islamorada, FL

September, the first month of the autumn, in Islamorada, is still a hot month, with average temperature varying between 88°F (31.1°C) and 75°F (23.9°C).

Temperature

In September, the average high-temperature is practically the same as in August - a still hot 88°F (31.1°C). The average low-temperature, in Islamorada, Florida, is 75°F (23.9°C).

Rainfall

During September, Islamorada regularly aggregates up to 6.7" (170.7mm) of precipitation. During the entire year, Islamorada aggregates up to 44.8" (1138.2mm) of precipitation.

Ocean temperature

In September, the average ocean temperature in Islamorada, Florida, is 85.5°F (29.7°C).
Note: For swimming, diving, and other water activities, temperatures between 77°F (25°C) and 84.2°F (29°C) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.

Daylight

In Islamorada, the average length of the day in September is 12.3h.

What is the temperature in September in Islamorada?

In Islamorada, Florida, in September, the average high-temperature is 88°F (31.1°C), and the average low-temperature is 75°F (23.9°C).

How much does it rain in Islamorada in September?

During September, Islamorada regularly aggregates up to 6.7" (170.7mm) of precipitation.

What is the water temperature in September in Islamorada?

In September, the average ocean temperature is 85.5°F (29.7°C). For swimming, diving, and other water activities, temperatures between 77°F (25°C) and 84.2°F (29°C) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.

How many hours of daylight does Islamorada have in September?

In September, the average length of the day in Islamorada, Florida, is 12.3h.
Average temperature in September - Islamorada, FL
  • Average high temperature in September: 88°F

Warmest months (with the highest average high temperature) are July and August (90°F).
Months with the lowest average high temperature are January, February and December (75°F).

  • Average low temperature in September: 75°F

Months with the highest average low temperature are July and August (76°F).
Coldest months (with the lowest average low temperature) are January and February (57°F).

Average rainfall in September - Islamorada, FL
  • Average rainfall in September: 6.7"

The wettest month (with the highest rainfall) is June (6.9").
The driest month (with the lowest rainfall) is February (1.9").

Average sea temperature in September - Islamorada, FL
  • Average sea temperature in September: 85.4°F

The best month for swimming (with the highest average sea temperature) is August (86.6°F).
Coldest months (with the lowest average sea temperature) are January and February (73.9°F).

Average daylight in September - Islamorada, FL
  • Average daylight in September: 12.3h

The month with the longest days is June (Average daylight: 13.7h).
The month with shortest days is December (Average daylight: 10.6h).