September weather forecast
Crestview, FL

Weather in September

The first month of the autumn, September, is still a tropical month in Crestview, Florida, with temperature in the range of an average high of 87.3°F (30.7°C) and an average low of 71.4°F (21.9°C).

Temperature

In September, the average high-temperature is relatively the same as in August - a still tropical 87.3°F (30.7°C). The average low-temperature, in Crestview, Florida, is 71.4°F (21.9°C).

Heat index

The average heat index in September is appraised at a very hot 99.9°F (37.7°C). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
Note that heat index values are valued for light wind and location in the shade. With 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 'felt air temperature', 'feels like', 'real feel', or 'apparent temperature', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. Additional factors like activity, metabolic differences, differences in body mass, height, and shape, and pregnancy affect individual temperature impact. 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 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.
The human body normally cools itself by perspiration, as evaporated sweat carries heat away from the body. Under high air temperature and humidity (high heat index) conditions, perspiration is limited, and the perception of heat is increased. When heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.

Humidity

The average relative humidity in September is 73%.

Rainfall

In Crestview, during September, the rain falls for 17.5 days and regularly aggregates up to 2.6" (66mm) of precipitation. In Crestview, during the entire year, the rain falls for 171.8 days and collects up to 34.92" (887mm) of precipitation.

Snowfall

March through November are months without snowfall in Crestview.

Daylight

The average length of the day in September in Crestview is 12h and 20min.
On the first day of September, sunrise is at 6:22 am and sunset at 7:09 pm. On the last day of the month, sunrise is at 6:39 am and sunset at 6:33 pm CDT.

Sunshine

In September, the average sunshine is 9.3h.

UV index

In September, the average daily maximum UV index in Crestview is 6. A UV Index estimate of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for ordinary individuals.
Note: In September, the average maximum UV index of 6 translate into the following recommendations:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. 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. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
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FAQ

What is the temperature in September in Crestview?

The average high-temperature, in September, is 87.3°F (30.7°C), while the average low-temperature is 71.4°F (21.9°C). In September, the average heat index (a.k.a. 'real feel', 'feels like'), which takes the relative humidity and factors it into the air temperature reading, is appraised at 99.9°F (37.7°C).

What is the average humidity in September in Crestview?

In Crestview, Florida, the average relative humidity in September is 73%.

How many days does it rain in September in Crestview?

In September, in Crestview, the rain falls for 17.5 days. Throughout September, 2.6" (66mm) of precipitation is accumulated.

When it does not snow in Crestview?

March through November are months without snowfall.

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

In Crestview, the average day length in September is 12h and 20min.

What time are sunrise and sunset in September in Crestview?

In September, on the first day of the month, sunrise is at 6:22 am and sunset at 7:09 pm. On the last day of the month, sunrise is at 6:39 am and sunset at 6:33 pm CDT.

How many hours of sunshine does Crestview have in September?

In September, the average sunshine duration in Crestview is 9.3h.

What is the UV index intensity in September in Crestview?

In Crestview, Florida, the average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high hazard to health from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Crestview, FL

Average temperature in September - Crestview, FL
  • Average high temperature in September: 87.3°F

The warmest month (with the highest average high temperature) is August (90.9°F).
The month with the lowest average high temperature is January (59.2°F).

  • Average low temperature in September: 71.4°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 (43.3°F).

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Average pressure in September
Crestview, FL

Average pressure in September - Crestview, FL
  • Average pressure in September: 29.98"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The months with the lowest atmospheric pressure are June and August (29.97"Hg).

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Average wind speed in September
Crestview, FL

Average wind speed in September - Crestview, FL
  • Average wind speed in September: 5.3mph

The windiest month (with the highest average wind speed) is March (7.2mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).

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Average humidity in September
Crestview, FL

Average humidity in September - Crestview, FL
  • Average humidity in September: 73%

The month with the highest relative humidity is December (78%).
The month with the lowest relative humidity is October (69%).

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Average rainfall in September
Crestview, FL

Average rainfall in September - Crestview, FL
  • Average rainfall in September: 2.6"

The wettest month (with the highest rainfall) is August (4.72").
The driest month (with the least rainfall) is November (1.89").

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Average rainfall days in September
Crestview, FL

Average rainfall days in September - Crestview, FL
  • Average rainfall days in September: 17.5 days

The month with the highest number of rainy days is August (23.8 days).
The month with the least rainy days is November (7.3 days).

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Average snowfall days in September
Crestview, FL

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

The month with the highest number of snowfall days is January (0.3 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and November (0 days).

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

Average daylight in September / Average sunshine in September - Crestview, FL
  • Average daylight in September: 12h and 20min

The month with the longest days is June (Average daylight: 14h and 7min).
The month with the shortest days is December (Average daylight: 10h and 12min).

  • Average sunshine in September: 9h and 18min

The month with the most sunshine is June (Average sunshine: 11h and 6min).
The months with the least sunshine are February and December (Average sunshine: 5h and 24min).

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Average sunshine days in September
Crestview, FL

Average sunshine days in September - Crestview, FL
  • Average sunshine days in September: 10.8 days

The month with the most sunshine days is November (21.6 days).
The month with the least sunshine days is August (5.6 days).

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Average UV index in September
Crestview, FL

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

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

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Average cloud cover in September
Crestview, FL

Average cloud cover in September - Crestview, FL
  • Average cloud cover in September: 27

The months with the most cloud cover are February and December (Cloud cover 43).
The month with the least cloud cover is October (Cloud cover 24).

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Average visibility in September
Crestview, FL

Average visibility in September - Crestview, 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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