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Bay Harbor Islands Weather in September

Bay Harbor Islands in September averages 31°C (88°F) during the day and 25°C (77°F) at night. September is part of the rainy season, so frequent rainfall is typical.

Rainfall in Bay Harbor Islands in September

Bay Harbor Islands is in the rainy season in September, with rain on around 25 days and an average of 198 mm (7.8 in). Rainy season showers tend to be fairly substantial. A good rain jacket or umbrella is worth having with you most days.

Temperature in Bay Harbor Islands in September

In September, expect very high temperatures in Bay Harbor Islands, with highs of 31°C (88°F) and lows of 25°C (77°F) at night. It's usually most comfortable outside during the morning and later in the day. Nights are warm at 25°C (77°F). It's worth making sure your accommodation has decent ventilation or air conditioning.

Sunshine in Bay Harbor Islands in September

The city usually sees around 260 hours of sunlight, indicating many sunny days despite it being the rainy season.

Wind Speed in Bay Harbor Islands in September

September sees wind speeds averaging 4 m/s (8 knots). You'll experience variable conditions with moderate winds that create small waves on water and keep branches moving. Conditions range from light winds to moderate breezes throughout the month.

Average water temperature in September

With water at 28°C (82°F), you can expect warm, pleasant conditions for any water activity. There's no adjustment period — it feels comfortable straight away.

Our weather planner can help you find worldwide destinations with pleasant weather during this period. January, February, March, November and December typically offer the best weather for Bay Harbor Islands.

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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 Bay Harbor Islands's climate page.

Bay Harbor Islands Temperature in September

Min TemperatureMin Temperature 25°C (77°F)  
Max TemperatureMax Temperature 31°C (88°F)  
Water TemperatureWater Temperature 28°C (82°F) *  
Chance of RainChance of Rain 83%  
PrecipitationPrecipitation 198 mm (7.8 in)  
Rainy daysRainy days 25 days  
HumidityHumidity 78% *  
WindspeedWindspeed 4 m/s (8 knots) *  
SunshineSunshine 260 hours *  
Percentage SunshinePercentage Sunshine 71% *  
* Data from: Miami, the United States of America (17 KM, 10 Miles).

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 →

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Legend perfect weather pleasant tolerable unpleasant poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

What to Wear in Bay Harbor Islands 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. The water temperature sits at about 28°C (82°F), making it perfect for swimming and water activities. Don't forget to pack your favorite swimwear and perhaps some snorkel gear. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.

What To Do in Bay Harbor Islands 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
6/10
Outdoor sports
7/10

Select a Month

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 Bay Harbor Islands's climate page.

More climate data for Bay Harbor Islands