Islamorada Weather in September

Thinking of visiting Islamorada in September? Expect very high temperatures reaching 31°C (88°F) during the day, dropping to 26°C (79°F) at night, and be prepared for the wettest month of the year.

Rainfall in Islamorada in September

Prepare for intense rain this month, as it marks the peak rainfall period. Having a poncho will keep you dry through the downpours. This month experiences about 20 days of rain according to historical data, averaging 194 mm (7.6 in). Wet weather is a regular and significant part of this month. Frequent days of rain combined with high totals means proper waterproofs are worth packing.

Temperature in Islamorada in September

September in Islamorada sees highs of 31°C (88°F) and lows of 26°C (79°F) overnight. Indoor breaks or shaded spots can make the warmer part of the day much more comfortable. With lows of 26°C (79°F), it stays warm throughout the night. A cold shower before going to sleep is one of the easiest ways to cool down before bed.

Sunshine in Islamorada in September

Expect a lot of sunshine this month, with about 270 hours of sun. These sunny conditions add to the overall experience.

If you prefer dry days with pleasant temperatures, September may not be the ideal month to visit Islamorada. Our weather planner can help you explore destinations with more pleasant weather conditions.

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For a detailed overview over the year and the best time to visit the United States of America, check out our Islamorada's climate page.

Islamorada Temperature in September

Min Temperature 26°C (79°F)  

Max Temperature 31°C (88°F)  

Chance of Rain 65%  

Precipitation 194 mm (7.6 in)  

Rainy days 20 days  

Humidity 76% *  

Sunshine 270 hours *  

Percentage Sunshine 73% *  

* Data from: Florida Keys, the United States of America (25 KM, 15 Miles).

What to Wear in Islamorada in September

Warm but pleasant conditions in Islamorada in September. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. It's going to pour! Pack a good poncho and prepare for very wet conditions. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.

What To Do in Islamorada in September

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

8/10

Cycling

7/10

Walking

7/10

Camping

7/10

Outdoor sports

7/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit the United States of America, check out our Islamorada's climate page.

More climate data for Islamorada

Temperature Rainfall Sunshine Humidity

See the full Islamorada climate overview or explore weather in the United States of America.