September weather forecast
Dunnellon, FL

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Weather in September

The first month of the autumn, September, is still a tropical month in Dunnellon, Florida, with an average temperature ranging between min 74.3°F (23.5°C) and max 87.1°F (30.6°C).

Temperature

As August turns into September, the average high-temperatures rest at a still hot 87.1°F (30.6°C), showing a minor variation from the prior month. Dunnellon's nighttime temperature in September drops to an average of 74.3°F (23.5°C).

Heat index

September's heat index is computed to be a sweltering 102.2°F (39°C). Implement more preventive measures, heat cramps and heat exhaustion are probable. Heatstroke might result from extended activity.
Note that heat index values are valued for light wind and location in the shade. The direct sunshine could escalate the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', offers an insight into how hot it feels when we factor in moisture content. A person's impression of weather can be affected by numerous aspects, among them metabolic variations, pregnancy, and activity levels. Being aware that direct sunlight can impact the felt heat might mean an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Young ones often do not realize the necessity to rest and replenish their fluids. Thirst is a delayed indication of dehydration - keeping hydrated, particularly in prolonged physical activity, is crucial.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. Increased relative humidity interferes with body cooling by slowing the rate of evaporation, resulting in a slower body cooling rate and a heightened feeling of heat. Heat-related challenges, like dehydration, can be anticipated when body heat isn't managed effectively.

Humidity

September is the most humid month in Dunnellon, with an average relative humidity of 78%.

Rainfall

In Dunnellon, during September, the rain falls for 21.4 days and regularly aggregates up to 3.54" (90mm) of precipitation. In Dunnellon, during the entire year, the rain falls for 178.4 days and collects up to 34.06" (865mm) of precipitation.

Snowfall

February through December are months without snowfall in Dunnellon.

Daylight

In September, the average length of the day is 12h and 19min.
On the first day of the month, sunrise is at 7:07 am and sunset at 7:51 pm. On the last day of September, in Dunnellon, sunrise is at 7:22 am and sunset at 7:16 pm EDT.

Sunshine

In September, the average sunshine is 8.9h.

UV index

The months with the highest UV index in Dunnellon are May through September, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for ordinary individuals.
Note: A maximum daily UV index of 7 during September morphs into the following directions:
Use measures and accept sun safety conventions. Guarding against skin and eye trauma is of high priority. Stay out of direct sunlight between 10 a.m. and 4 p.m., when UV radiation is most intense, and remember that not all shade structures provide complete protection. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.
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Frequently asked questions

How hot is it in Dunnellon in September?

In September, the average high-temperature and low-temperature in Dunnellon, Florida, are 87.1°F (30.6°C) and 74.3°F (23.5°C) respectively. The average heat index (a.k.a. 'felt air temperature', 'real feel'), which combines relative humidity and air temperature, in September is computed to be 102.2°F (39°C).

What is the most humid month in Dunnellon?

The most humid month in Dunnellon is September, with an average relative humidity of 78%.

What is the average humidity in September in Dunnellon?

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

How much does it rain in Dunnellon in September?

In September, the rain falls for 21.4 days. Throughout September, 3.54" (90mm) of precipitation is accumulated.

When it does not snow in Dunnellon?

February through December are months without snowfall.

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

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

When are sunrise and sunset in September in Dunnellon?

In September, on the first day of the month, sunrise is at 7:07 am and sunset at 7:51 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 7:16 pm EDT.

How many hours of sunshine does Dunnellon have in September?

The average sunshine duration in September is 8.9h.

What are the months with the highest UV index in Dunnellon?

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

How high is the UV index in September in Dunnellon?

In September, the average daily maximum UV index is 7. A UV Index of 6 to 7 symbolizes a high health risk from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Dunnellon, FL

Average temperature in September - Dunnellon, FL
  • Average high temperature in September: 87.1°F

The warmest month (with the highest average high temperature) is August (89.2°F).
The month with the lowest average high temperature is January (65.3°F).

  • Average low temperature in September: 74.3°F

The month with the highest average low temperature is August (77.2°F).
The coldest month (with the lowest average low temperature) is January (49.6°F).

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Average pressure in September
Dunnellon, FL

Average pressure in September - Dunnellon, FL
  • Average pressure in September: 29.97"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is September (29.97"Hg).

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Average wind speed in September
Dunnellon, FL

Average wind speed in September - Dunnellon, FL
  • Average wind speed in September: 6mph

The windiest months (with the highest average wind speed) are March and April (7.6mph).
The calmest month (with the lowest average wind speed) is July (5.7mph).

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Average humidity in September
Dunnellon, FL

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

The month with the highest relative humidity is September (78%).
The months with the lowest relative humidity are January, March and May (73%).

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Average rainfall in September
Dunnellon, FL

Average rainfall in September - Dunnellon, FL
  • Average rainfall in September: 3.54"

The wettest month (with the highest rainfall) is August (5.51").
The driest month (with the least rainfall) is March (1.26").

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Average rainfall days in September
Dunnellon, FL

Average rainfall days in September - Dunnellon, FL
  • Average rainfall days in September: 21.4 days

The month with the highest number of rainy days is August (26.9 days).
The month with the least rainy days is November (8.7 days).

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Average snowfall days in September
Dunnellon, FL

Average snowfall days in September - Dunnellon, FL
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (0.1 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October, November and December (0 days).

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

Average daylight in September / Average sunshine in September - Dunnellon, FL
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 14h and 0min).
The month with the shortest days is December (Average daylight: 10h and 18min).

  • Average sunshine in September: 8h and 5min

The month with the most sunshine is May (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 6h and 18min).

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Average sunshine days in September
Dunnellon, FL

Average sunshine days in September - Dunnellon, FL
  • Average sunshine days in September: 6.2 days

The month with the most sunshine days is January (20.8 days).
The month with the least sunshine days is August (2.1 days).

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Average UV index in September
Dunnellon, FL

Average UV index in September - Dunnellon, 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
Dunnellon, FL

Average cloud cover in September - Dunnellon, FL
  • Average cloud cover in September: 29

The months with the most cloud cover are February and December (Cloud cover 34).
The month with the least cloud cover is May (Cloud cover 24).

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Average visibility in September
Dunnellon, FL

Average visibility in September - Dunnellon, 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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Dunnellon, Florida, USA

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