September weather forecast
Indian Harbour Beach, FL

Weather in September

The first month of the autumn, September, is still a warm month in Indian Harbour Beach, Florida, with average temperature varying between 77.5°F (25.3°C) and 85.1°F (29.5°C).

Temperature

In Indian Harbour Beach, the average high-temperature in September is relatively the same as in August - a moderately hot 85.1°F (29.5°C). In Indian Harbour Beach, the average low-temperature is 77.5°F (25.3°C).

Heat index

The average heat index in September is estimated at a very hot 96.3°F (35.7°C). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature', 'real feel', 'apparent temperature', or 'feels like', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. Additional factors like differences in body mass, height, and shape, wind, pregnancy, and activity influence one's weather impression. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
The human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. High relative humidity reduces the evaporation rate, resulting in a lower heat removal rate from the body, causing the perception of being overheated. If the body can not disperse the excessive heat and body temperature reaches conditions of hyperthermia, above 99.5°F (37.5°C) to 100.9°F (38.3°C), thermal conditions are potentially life-threatening.

Humidity

The average relative humidity in September is 78%.

Rainfall

In September, the rain falls for 21.2 days. Throughout September, 2.8" (71mm) of precipitation is accumulated. Throughout the year, there are 176.1 rainfall days, and 22.28" (566mm) of precipitation is accumulated.

Daylight

The average length of the day in September is 12.3h.

Sunshine

In September, the average sunshine in Indian Harbour Beach, Florida, is 9.1h.

UV index

May through September, with an average maximum UV index of 7, are months with the highest UV index in Indian Harbour Beach. A UV Index estimate of 6 to 7 represents a high health risk from unprotected exposure to the Sun's UV rays for the ordinary person.
Note: The average daily UV index of 7 transform into the following instructions:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.
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FAQ

What is the temperature in September in Indian Harbour Beach?

In Indian Harbour Beach, Florida, in September, the average high-temperature is 85.1°F (29.5°C), and the average low-temperature is 77.5°F (25.3°C). In September, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which combines relative humidity and air temperature, is estimated at 96.3°F (35.7°C).

What is the average humidity in September in Indian Harbour Beach?

In September, the average relative humidity in Indian Harbour Beach, Florida, is 78%.

How much does it rain in Indian Harbour Beach in September?

In Indian Harbour Beach, in September, during 21.2 rainfall days, 2.8" (71mm) of precipitation is typically accumulated.

What is the average length of the day in September in Indian Harbour Beach?

In September, the average length of the day in Indian Harbour Beach, Florida, is 12.3h.

How many hours of sunshine does Indian Harbour Beach have in September?

The average sunshine in September in Indian Harbour Beach is 9.1h.

When is the highest UV index in Indian Harbour Beach?

Months with the highest UV index in Indian Harbour Beach are May through September, with an average maximum UV index of 7.

How high is the UV index in September in Indian Harbour Beach?

The average daily maximum UV index in September is 7. A UV Index reading of 6 to 7 represents a high health risk from unprotected exposure to the UV radiation.

Average temperature in September
Indian Harbour Beach, FL

Average temperature in September - Indian Harbour Beach, FL
  • Average high temperature in September: 85.1°F

The warmest month (with the highest average high temperature) is August (87.3°F).
The month with the lowest average high temperature is January (69.3°F).

  • Average low temperature in September: 77.5°F

The month with the highest average low temperature is August (78.8°F).
The coldest month (with the lowest average low temperature) is January (58.6°F).

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Average pressure in September
Indian Harbour Beach, FL

Average pressure in September - Indian Harbour Beach, FL
  • Average pressure in September: 29.97"

The month with the highest atmospheric pressure is January (30.13").
The month with the lowest atmospheric pressure is September (29.97").

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Average wind speed in September
Indian Harbour Beach, FL

Average wind speed in September - Indian Harbour Beach, FL
  • Average wind speed in September: 8mph

The windiest month (with the highest average wind speed) is November (10.3mph).
The calmest month (with the lowest average wind speed) is July (6.9mph).

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Average humidity in September
Indian Harbour Beach, FL

Average humidity in September - Indian Harbour Beach, FL
  • Average humidity in September: 78%

The month with the highest relative humidity is August (80%).
The month with the lowest relative humidity is March (72%).

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Average rainfall in September
Indian Harbour Beach, FL

Average rainfall in September - Indian Harbour Beach, FL
  • Average rainfall in September: 2.8"

The wettest month (with the highest rainfall) is August (4.29").
The driest month (with the least rainfall) is February (0.59").

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Average rainfall days in September
Indian Harbour Beach, FL

Average rainfall days in September - Indian Harbour Beach, FL
  • Average rainfall days in September: 21.2 days

The month with the highest number of rainy days is August (23.3 days).
The month with the least rainy days is February (8.2 days).

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Average daylight in September /
Average sunshine in September
Indian Harbour Beach, FL

Average daylight in September / Average sunshine in September - Indian Harbour Beach, FL
  • Average daylight in September: 12.3h

The month with the longest days is June (Average daylight: 13.9h).
The month with the shortest days is December (Average daylight: 10.4h).

  • Average sunshine in September: 9.1h

The month with the most sunshine is July (Average sunshine: 11h).
The month with the least sunshine is January (Average sunshine: 6.1h).

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Average sunshine days in September
Indian Harbour Beach, FL

Average sunshine days in September - Indian Harbour Beach, FL
  • Average sunshine days in September: 5.5 days

The month with the most sunshine days is January (19.6 days).
The month with the least sunshine days is August (4.7 days).

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Average UV index in September
Indian Harbour Beach, FL

Average UV index in September - Indian Harbour Beach, FL
  • Average UV index in September: 7

Months with the highest UV index are May, June, July, August and September (UV index 7).
Months with the lowest UV index are January, February and December (UV index 5).

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Average cloud cover in September
Indian Harbour Beach, FL

Average cloud cover in September - Indian Harbour Beach, FL
  • Average cloud cover in September: 28

Months with the most cloud cover are November and December (Cloud cover 34).
Months with the least cloud cover are April and May (Cloud cover 26).

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Average visibility in September
Indian Harbour Beach, FL

Average visibility in September - Indian Harbour Beach, FL
  • Average visibility in September: 6mi

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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