Key Largo Weather in September
Key Largo in September sees very high daytime temperatures of 31°C (88°F) and nighttime lows of 26°C (79°F). With the highest rainfall of the year it is wise to pack an umbrella and expect frequent showers.
Rainfall in Key Largo in September
It records the year's peak rainfall, often coming down quite heavily. We recommend bringing a poncho, which will keep you dry. You can expect rain on around 22 days based on historical patterns, with 191 mm (7.5 in) average for the month. Rain falls regularly this month and can be quite heavy when it does. Showers can be substantial, so waterproof gear is a good idea.
Temperature in Key Largo in September
September in Key Largo brings typical temperatures with highs around 31°C (88°F) and lows of 26°C (79°F). Sunshine and humidity can make it feel even warmer than the raw temperature suggests. Nights are warm at 26°C (79°F). It's worth making sure your accommodation has decent ventilation or air conditioning.
Sunshine in Key Largo in September
There are approximately 270 hours of sunshine this month, resulting in mostly clear days.September in Key Largo has its charm. However, if you're seeking pleasant, dry and sunny weather, our weather planner can help you explore other destinations in the world.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Key Largo's climate page.
Key Largo Temperature in September
Min Temperature
26°C (79°F)
Max Temperature
31°C (88°F)
Chance of Rain
72%
Precipitation
191 mm (7.5 in)
Rainy days
22 days
Humidity
76% *
Sunshine
270 hours *
Percentage Sunshine
73% *
Best Places in the United States of America in September
Find out more about the weather in the United States of America and which places have the best travel conditions in this month. See all of the United States of America in September →
perfect weather
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tolerable
unpleasant
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What to Wear in Key Largo in September
Warm weather calls for comfortable, breathable clothing in September. Cotton t-shirts, shorts, light dresses, and sandals are perfect. You might still want a light layer for evenings or air-conditioned places (for example buses). Also bring a poncho, it will rain a lot! Waterproof everything you can. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.What To Do in Key Largo in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Key Largo's climate page.
Temperature Rainfall Sunshine Humidity
See the full Key Largo climate overview or explore weather in the United States of America.
