September weather forecast
Hernando, FL

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Weather in September

The first month of the autumn, September, is still a tropical month in Hernando, Florida, with an average temperature varying between 88.2°F (31.2°C) and 72.9°F (22.7°C).

Temperature

The commencement of September brings an average high-temperature of a still hot 88.2°F (31.2°C), marking an inconsequential divergence from August. In Hernando, an average temperature of 72.9°F (22.7°C) is noted during September nights.

Heat index

For September, the heat index is calculated to be a blisteringly hot 105.8°F (41°C). More protective measures are required - heat exhaustion and heat cramps are likely. Heatstroke may follow lengthy activity.
Regarding the heat index, one should be aware it's determined by shaded settings and mild winds. The heat index has the potential to rise by 15 Fahrenheit (8 Celsius) degrees with direct sunshine exposure.
Note: The heat index, also known as 'feels like' or 'real feel', is a calculation that merges air temperature and relative humidity to depict the sensation of warmth. The individual's impression of temperature can be affected by numerous factors such as metabolic variations, physical exertion, and attire. Direct exposure to the sun's rays can enhance the felt temperature, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Young ones often disregard the necessity to rest and hydrate. Thirst usually indicates advanced dehydration - hence, it is key to stay hydrated, particularly during ongoing physical activities.
The human body has a built-in cooling mechanism through perspiration; evaporating sweat dissipates the excess heat. A higher relative humidity affects normal body cooling by reducing the evaporation rate, subsequently lowering the rate at which the body cools and increasing the perception of heat. When the body is unable to balance heat gain, its temperature elevates, which may induce thermal illnesses.

Humidity

July through September, with an average relative humidity of 78%, are the most humid months.

Rainfall

In Hernando, in September, it is raining for 19.5 days, with typically 1.69" (43mm) of accumulated precipitation. Throughout the year, in Hernando, there are 162 rainfall days, and 20.24" (514mm) of precipitation is accumulated.

Snowfall

February through December are months without snowfall.

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 7:50 pm. On the last day of September, sunrise is at 7:22 am and sunset at 7:16 pm EDT.

Sunshine

In September, the average sunshine is 8.9h.

UV index

May through September, with an average maximum UV index of 7, are months with the highest UV index in Hernando. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for ordinary individuals.
Note: The daily maximum UV index of 7 in September interprets into the following advice:
Uphold preventive measures and conform to sun safety guidelines. Defending against skin and eye harm is crucial. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
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Frequently asked questions

How hot is it in Hernando in September?

During September, Hernando experiences an average high-temperature of 88.2°F (31.2°C) and a low-temperature of 72.9°F (22.7°C). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, in September is calculated to be 105.8°F (41°C).

What is the most humid month in Hernando?

The months with the highest humidity in Hernando, Florida, are July through September, with an average relative humidity of 78%.

What is the average humidity in September in Hernando?

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

How much does it rain in Hernando in September?

In September, in Hernando, the rain falls for 19.5 days. Throughout September, 1.69" (43mm) of precipitation is accumulated.

When it does not snow in Hernando?

In Hernando, Florida, snow does not fall in February through December.

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

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

When is the sunrise / sunset in September in Hernando?

In September, on the first day of the month, sunrise is at 7:07 am and sunset at 7:50 pm. On the last day of the month, in Hernando, sunrise is at 7:22 am and sunset at 7:16 pm EDT.

How long on average sun shines in September in Hernando?

The average sunshine duration in September is 8.9h.

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

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

What is the UV index reading in September in Hernando?

The average daily maximum UV index in September in Hernando is 7. A UV Index estimate of 6 to 7 represents a high hazard to health from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Hernando, FL

Average temperature in September - Hernando, FL
  • Average high temperature in September: 88.2°F

The warmest month (with the highest average high temperature) is August (90.1°F).
The month with the lowest average high temperature is January (66.7°F).

  • Average low temperature in September: 72.9°F

The month with the highest average low temperature is August (75.9°F).
The coldest month (with the lowest average low temperature) is January (49.5°F).

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Average pressure in September
Hernando, FL

Average pressure in September - Hernando, 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
Hernando, FL

Average wind speed in September - Hernando, FL
  • Average wind speed in September: 5.1mph

The windiest month (with the highest average wind speed) is April (6.7mph).
The calmest month (with the lowest average wind speed) is July (4.8mph).

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Average humidity in September
Hernando, FL

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

The months with the highest relative humidity are July, August and September (78%).
The month with the lowest relative humidity is March (72%).

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Average rainfall in September
Hernando, FL

Average rainfall in September - Hernando, FL
  • Average rainfall in September: 1.69"

The wettest month (with the highest rainfall) is July (3.58").
The driest month (with the least rainfall) is March (0.59").

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Average rainfall days in September
Hernando, FL

Average rainfall days in September - Hernando, FL
  • Average rainfall days in September: 19.5 days

The month with the highest number of rainy days is July (23.2 days).
The month with the least rainy days is January (7.3 days).

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Average snowfall in September
Hernando, FL

Average snowfall in September - Hernando, FL
  • Average snowfall in September: 0"

The month with the highest snowfall is January (0.04").
The months with the least snowfall are February, March, April, May, June, July, August, September, October, November and December (0").

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Average snowfall days in September
Hernando, FL

Average snowfall days in September - Hernando, 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
Hernando, FL

Average daylight in September / Average sunshine in September - Hernando, 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: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 6h and 18min).

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Average sunshine days in September
Hernando, FL

Average sunshine days in September - Hernando, FL
  • Average sunshine days in September: 7.5 days

The month with the most sunshine days is January (21.7 days).
The month with the least sunshine days is July (5.1 days).

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Average UV index in September
Hernando, FL

Average UV index in September - Hernando, 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
Hernando, FL

Average cloud cover in September - Hernando, FL
  • Average cloud cover in September: 31

The months with the most cloud cover are February and December (Cloud cover 35).
The month with the least cloud cover is May (Cloud cover 26).

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Average visibility in September
Hernando, FL

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

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