September weather forecast and climate
Fenholloway, FL

Weather in September

September, the first month of the autumn, in Fenholloway, is still a tropical month, with average temperature fluctuating between 71.8°F (22.1°C) and 87.4°F (30.8°C).

Temperature

In September, the average high-temperature is almost the same as in August - a still tropical 87.4°F (30.8°C). In September, in Fenholloway, the average low-temperature is 71.8°F (22.1°C).

Heat index

The average heat index is evaluated at a torrid 102.6°F (39.2°C). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
Note that heat index values are valued for light wind and location in the shade. With the exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel', 'felt air temperature', 'feels like', or 'apparent temperature', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. This effect is subjective, depending on the activity and individual's heat perception influenced by various reasons (differences in body mass, height, and shape, metabolic differences, wind). Be aware that direct exposure to sunlight increases heat impact, and may raise the heat index additionally, by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. 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.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. 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

Months with the highest humidity in Fenholloway are August, September and December, with an average relative humidity of 77%.

Rainfall

In Fenholloway, Florida, during September, the rain falls for 18.3 days and regularly aggregates up to 3.27" (83mm) of precipitation. In Fenholloway, Florida, during the entire year, the rain falls for 168.6 days and collects up to 32.95" (837mm) of precipitation.

Daylight

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

Sunshine

In Fenholloway, the average sunshine is 8.7h.

UV index

In Fenholloway, the average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high health hazard from unprotected exposure to the Sun's UV rays for the ordinary person.
Note: In September, the average maximum UV index of 6 translate into the following recommendations:
Take precautions and utilize sun safety practices. Protection against the skin and eye damage is required. 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. 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.
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FAQ

What is the temperature in September in Fenholloway?

In Fenholloway, in September, the average high-temperature is 87.4°F (30.8°C), and the average low-temperature is 71.8°F (22.1°C). The average heat index (a.k.a. 'feels like', 'real feel'), that factores the actual air temperature with the relative humidity, in September is calculated to 102.6°F (39.2°C).

What is the most humid month in Fenholloway?

Months with the highest humidity in Fenholloway are August, September and December, with an average relative humidity of 77%.

What is the average humidity in September in Fenholloway?

The average relative humidity in September is 77%.

How many days does it rain in September in Fenholloway?

In September, the rain falls for 18.3 days. Throughout September, 3.27" (83mm) of precipitation is accumulated.

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

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

How long on average sun shines in September in Fenholloway?

In Fenholloway, the average sunshine in September is 8.7h.

What is the UV index intensity in September in Fenholloway?

In September, the average daily maximum UV index in Fenholloway, Florida, is 6. A UV Index estimate of 6 to 7 represents a high health risk from unsafe exposure to the Sun's UV rays.

Average temperature in September
Fenholloway, FL

Average temperature in September - Fenholloway, FL
  • Average high temperature in September: 87.4°F

The warmest months (with the highest average high temperature) are July and August (90.3°F).
The month with the lowest average high temperature is January (62.2°F).

  • Average low temperature in September: 71.8°F

The month with the highest average low temperature is August (75.7°F).
The coldest month (with the lowest average low temperature) is January (45.5°F).

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Average pressure in September
Fenholloway, FL

Average pressure in September - Fenholloway, FL
  • Average pressure in September: 29.98"

The month with the highest atmospheric pressure is January (30.15").
Months with the lowest atmospheric pressure are June, August and September (29.98").

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Average wind speed in September
Fenholloway, FL

Average wind speed in September - Fenholloway, FL
  • Average wind speed in September: 5.4mph

The windiest month (with the highest average wind speed) is January (7.2mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).

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Average humidity in September
Fenholloway, FL

Average humidity in September - Fenholloway, FL
  • Average humidity in September: 77%

Months with the highest relative humidity are August, September and December (77%).
Months with the lowest relative humidity are January and May (72%).

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Average rainfall in September
Fenholloway, FL

Average rainfall in September - Fenholloway, FL
  • Average rainfall in September: 3.27"

The wettest month (with the highest rainfall) is August (5.35").
The driest month (with the least rainfall) is November (1.02").

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Average rainfall days in September
Fenholloway, FL

Average rainfall days in September - Fenholloway, FL
  • Average rainfall days in September: 18.3 days

The month with the highest number of rainy days is August (24.8 days).
The month with the least rainy days is November (6.8 days).

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

Average daylight in September / Average sunshine in September - Fenholloway, FL
  • Average daylight in September: 12.3h

The month with the longest days is June (Average daylight: 14.1h).
The month with the shortest days is December (Average daylight: 10.2h).

  • Average sunshine in September: 8.7h

The month with the most sunshine is July (Average sunshine: 10.9h).
The month with the least sunshine is December (Average sunshine: 5.9h).

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Average sunshine days in September
Fenholloway, FL

Average sunshine days in September - Fenholloway, FL
  • Average sunshine days in September: 9.5 days

The month with the most sunshine days is November (21.1 days).
The month with the least sunshine days is August (3.8 days).

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Average UV index in September
Fenholloway, FL

Average UV index in September - Fenholloway, FL
  • Average UV index in September: 6

Months with the highest UV index are May, June, July and August (UV index 7).
The month with the lowest UV index is January (UV index 3).

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Average cloud cover in September
Fenholloway, FL

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

The month with the most cloud cover is December (Cloud cover 38).
The month with the least cloud cover is May (Cloud cover 24).

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Average visibility in September
Fenholloway, FL

Average visibility in September - Fenholloway, 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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