September weather forecast
Sarasota, FL

The palmy bay in Sarasota, Florida, USA, with tall buildings across the water
The palmy bay in Sarasota, Florida, USA, with tall buildings across the water

Weather in September

September, the first month of the autumn in Sarasota, is still a tropical month, with an average temperature fluctuating between 86.9°F (30.5°C) and 77.4°F (25.2°C).

Temperature

In September, the average high-temperature is practically the same as in August - a still tropical 86.9°F (30.5°C). In September, in Sarasota, the average low-temperature is 77.4°F (25.2°C).

Heat index

The average heat index in September is computed to be a very hot 99.9°F (37.7°C). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
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 'apparent temperature', 'real feel', 'felt air temperature', or 'feels like', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. Additional factors like activity, wind, metabolic differences, and differences in body mass, height, and shape affect individual temperature impact. 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. 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. High relative humidity reduces the evaporation rate, resulting in a lower heat removal rate from the body, causing the perception of being overheated. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.

Humidity

In Sarasota, the average relative humidity in September is 75%.

Rainfall

In Sarasota, during September, the rain falls for 23.5 days and regularly aggregates up to 4.61" (117mm) of precipitation. In Sarasota, Florida, during the entire year, the rain falls for 183.1 days and collects up to 34.92" (887mm) of precipitation.

Ocean temperature

In September, the average ocean temperature in Sarasota is 84.7°F (29.3°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 September in Sarasota is 12h and 19min.
On the first day of the month, sunrise is at 7:09 am and sunset at 7:50 pm. On the last day of September, sunrise is at 7:22 am and sunset at 7:17 pm EDT.

Sunshine

In Sarasota, Florida, the average sunshine in September is 9h.

UV index

May through September, with an average maximum UV index of 7, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for the average person.
Note: In September, the average maximum UV index of 7 translate into the following recommendations:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. 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. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Beware! The reflection of water and sand dramatically increases exposure to the UV rays.
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FAQ

What is the temperature in September in Sarasota?

The average high-temperature, in September, in Sarasota, Florida, is 86.9°F (30.5°C), while the average low-temperature is 77.4°F (25.2°C). In September, the average heat index (a.k.a. 'feels like', 'real feel'), which calculates the temperature value influenced by the moisture in the air, is computed to be 99.9°F (37.7°C).

What is the average humidity in September in Sarasota?

In Sarasota, Florida, the average relative humidity in September is 75%.

How much does it rain in Sarasota in September?

In Sarasota, during September, the rain falls for 23.5 days and regularly aggregates up to 4.61" (117mm) of precipitation.

What is the ocean temperature in September in Sarasota?

In Sarasota, in September, the average water temperature is 84.7°F (29.3°C). For any water activity, surface water temperatures between 77°F (25°C) and 84.2°F (29°C) are considered as excellent and extremely pleasant for lengthened periods.

How many hours of daylight does Sarasota have in September?

In September, the average day length is 12h and 19min.

When are sunrise and sunset in September in Sarasota?

In September, on the first day of the month, sunrise is at 7:09 am and sunset at 7:50 pm. On the last day of the month, in Sarasota, sunrise is at 7:22 am and sunset at 7:17 pm EDT.

How many hours of sunshine does Sarasota have in September?

In Sarasota, Florida, the average sunshine duration in September is 9h.

When is the highest UV index in Sarasota?

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

How high is the UV index in September in Sarasota?

The average daily maximum UV index in September is 7. A UV Index of 6 to 7 symbolizes a high health risk from unsafe exposure to Sun's UV rays.

Average temperature in September
Sarasota, FL

Average temperature in September - Sarasota, FL
  • Average high temperature in September: 86.9°F

The warmest month (with the highest average high temperature) is August (88.5°F).
The month with the lowest average high temperature is January (68.5°F).

  • Average low temperature in September: 77.4°F

The month with the highest average low temperature is August (79.7°F).
The coldest month (with the lowest average low temperature) is January (56.1°F).

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Average pressure in September
Sarasota, FL

Average pressure in September - Sarasota, FL
  • Average pressure in September: 29.95"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is September (29.95"Hg).

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Average wind speed in September
Sarasota, FL

Average wind speed in September - Sarasota, FL
  • Average wind speed in September: 7.2mph

The windiest month (with the highest average wind speed) is January (9.3mph).
The calmest month (with the lowest average wind speed) is July (6.4mph).

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Average humidity in September
Sarasota, FL

Average humidity in September - Sarasota, FL
  • Average humidity in September: 75%

The month with the highest relative humidity is December (76%).
The months with the lowest relative humidity are March, April and May (72%).

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Average rainfall in September
Sarasota, FL

Average rainfall in September - Sarasota, FL
  • Average rainfall in September: 4.61"

The wettest month (with the highest rainfall) is August (6.42").
The driest months (with the least rainfall) are February and November (1.06").

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Average rainfall days in September
Sarasota, FL

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

The month with the highest number of rainy days is August (26.8 days).
The months with the least rainy days are January, February and November (8.3 days).

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Average sea temperature in September
Sarasota, FL

Average sea temperature in September - Sarasota, FL
  • Average sea temperature in September: 84.8°F

The best month for swimming (with the highest average sea temperature) is August (86.7°F).
The coldest month (with the lowest average sea temperature) is January (64.1°F).

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

Average daylight in September / Average sunshine in September - Sarasota, FL
  • Average daylight in September: 12h and 19min

The month with the longest days is June (Average daylight: 13h and 50min).
The month with the shortest days is December (Average daylight: 10h and 27min).

  • Average sunshine in September: 9h and 0min

The month with the most sunshine is May (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 30min).

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Average sunshine days in September
Sarasota, FL

Average sunshine days in September - Sarasota, FL
  • Average sunshine days in September: 4.5 days

The month with the most sunshine days is January (21.1 days).
The month with the least sunshine days is August (2.5 days).

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Average UV index in September
Sarasota, FL

Average UV index in September - Sarasota, FL
  • Average UV index in September: 7

The months with the highest UV index are May, June, July, August and September (UV index 7).
The month with the lowest UV index is January (UV index 4).

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Average cloud cover in September
Sarasota, FL

Average cloud cover in September - Sarasota, FL
  • Average cloud cover in September: 28

The months with the most cloud cover are January and December (Cloud cover 30).
The month with the least cloud cover is May (Cloud cover 22).

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Average visibility in September
Sarasota, FL

Average visibility in September - Sarasota, FL
  • Average visibility in September: 6mi

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

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