September weather forecast and climate
Indialantic, FL

Weather in September

The first month of the autumn, September, is still a warm month in Indialantic, Florida, with average temperature varying between 84.7°F (29.3°C) and 77.7°F (25.4°C).

Temperature

In Indialantic, Florida, the average high-temperature in September is practically the same as in August - a moderately hot 84.7°F (29.3°C). In September, in Indialantic, Florida, the average low-temperature is 77.7°F (25.4°C).

Heat index

The average heat index in September is evaluated at a sweltering 95.2°F (35.1°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 'feels like', 'felt air temperature', 'real feel', or 'apparent temperature', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. Additional factors like differences in body mass, height, and shape, wind, metabolic differences, and activity influence one's weather impression. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. When the relative humidity is high, the evaporation rate is reduced. The warmth is removed from the body at a lower rate, causing the body to retain more heat than it would in dry air. 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

In Indialantic, the average relative humidity is 78%.

Rainfall

In Indialantic, during September, the rain falls for 23.5 days and regularly aggregates up to 4.92" (125mm) of precipitation. Throughout the year, there are 197.1 rainfall days, and 35.98" (914mm) of precipitation is accumulated.

Ocean temperature

In Indialantic, in September, the average water temperature is 84°F (28.9°C).
Note: Water temperature between 77°F (25°C) and 84.2°F (29°C) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.

Daylight

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

Sunshine

The average sunshine in Indialantic is 9h.

UV index

Months with the highest UV index are May through September, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high threat to health from unsafe exposure to the UV radiation for ordinary individuals.
Note: The daily maximum UV index of 7 in September interpret into the following advice:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. 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. Caution! The reflection of sand and water significantly increases the intensity of the Sun's UV radiation.
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FAQ

What is the temperature in September in Indialantic?

In September, in Indialantic, Florida, the average high-temperature is 84.7°F (29.3°C), and the average low-temperature is 77.7°F (25.4°C). The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), that combines air temperature and relative humidity, in September is calculated to 95.2°F (35.1°C).

What is the average humidity in September in Indialantic?

In September, the average relative humidity in Indialantic is 78%.

How many days does it rain in September in Indialantic?

In Indialantic, in September, during 23.5 rainfall days, 4.92" (125mm) of precipitation is typically accumulated.

What is the water temperature in September in Indialantic?

In Indialantic, Florida, the average seawater temperature in September is 84°F (28.9°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.

What is the average length of the day in September in Indialantic?

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

How many hours of sunshine does Indialantic have in September?

The average sunshine in September in Indialantic, Florida, is 9h.

What is the month with the highest UV index in Indialantic?

May through September, with an average maximum UV index of 7, are months with the highest UV index in Indialantic.

What is the UV index intensity in September in Indialantic?

In September, the average daily maximum UV index in Indialantic is 7. A UV Index estimate of 6 to 7 represents a high health threat from unprotected exposure to the UV radiation.

Average temperature in September
Indialantic, FL

Average temperature in September - Indialantic, FL
  • Average high temperature in September: 84.7°F

The warmest month (with the highest average high temperature) is August (86.7°F).
The month with the lowest average high temperature is January (69.3°F).

  • Average low temperature in September: 77.7°F

The month with the highest average low temperature is August (79.3°F).
The coldest month (with the lowest average low temperature) is January (59.5°F).

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Average pressure in September
Indialantic, FL

Average pressure in September - Indialantic, FL
  • Average pressure in September: 29.96"

The month with the highest atmospheric pressure is January (30.13").
The month with the lowest atmospheric pressure is September (29.96").

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Average wind speed in September
Indialantic, FL

Average wind speed in September - Indialantic, FL
  • Average wind speed in September: 8.5mph

The windiest month (with the highest average wind speed) is November (10.9mph).
The calmest month (with the lowest average wind speed) is July (7.3mph).

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Average humidity in September
Indialantic, FL

Average humidity in September - Indialantic, FL
  • Average humidity in September: 78%

Months with the highest relative humidity are June, July and August (79%).
The month with the lowest relative humidity is March (72%).

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Average rainfall in September
Indialantic, FL

Average rainfall in September - Indialantic, FL
  • Average rainfall in September: 4.92"

The wettest month (with the highest rainfall) is August (6.85").
The driest month (with the least rainfall) is February (0.91").

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Average rainfall days in September
Indialantic, FL

Average rainfall days in September - Indialantic, FL
  • Average rainfall days in September: 23.5 days

The month with the highest number of rainy days is August (25.5 days).
The month with the least rainy days is February (9.9 days).

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Average sea temperature in September
Indialantic, FL

Average sea temperature in September - Indialantic, FL
  • Average sea temperature in September: 84.1°F

The best month for swimming (with the highest average sea temperature) is August (84.7°F).
The coldest month (with the lowest average sea temperature) is January (71.4°F).

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Average daylight in September /
Average sunshine in September
Indialantic, FL

Average daylight in September / Average sunshine in September - Indialantic, 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: 9h

The month with the most sunshine is July (Average sunshine: 10.9h).
The month with the least sunshine is January (Average sunshine: 6h).

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Average sunshine days in September
Indialantic, FL

Average sunshine days in September - Indialantic, FL
  • Average sunshine days in September: 4.3 days

The month with the most sunshine days is January (17.5 days).
The month with the least sunshine days is August (3.3 days).

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Average UV index in September
Indialantic, FL

Average UV index in September - Indialantic, 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
Indialantic, FL

Average cloud cover in September - Indialantic, FL
  • Average cloud cover in September: 30

The month with the most cloud cover is November (Cloud cover 36).
The month with the least cloud cover is May (Cloud cover 26).

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Average visibility in September
Indialantic, FL

Average visibility in September - Indialantic, 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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