September weather forecast
Hernando, FL

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Weather in September

The first month of the autumn, September, is also a hot month in Hernando, Florida, with an average temperature ranging between min 72.9°F (22.7°C) and max 88.2°F (31.2°C).

Temperature

Upon the beginning of September, Hernando's high-temperatures register at a still hot 88.2°F (31.2°C), closely mirroring the preceding month. In the month of September, the average temperature dips to a pleasant 72.9°F (22.7°C) during the night.

Heat index

For September, the heat index is evaluated at a scorching 105.8°F (41°C). Implement more safety precautions, heat cramps and heat exhaustion may happen. Persistent activity could induce heatstroke.
Given the heat index, its values are aligned with shaded sites and gentle winds. Exposing to direct sunshine may enhance heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', melds the effects of warmth and moisture to generate a feeling of heat. Additional elements encompassing metabolic differences, the degree of physical activity, and attire can impact the individual's perception of temperature. You should know that direct sun exposure can heighten weather effects, potentially elevating the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Younglings frequently fail to recognize the requirement to rest and rehydrate. Thirst emerges late in dehydration - it is imperative to keep hydration levels high, particularly during extended physical exertions.
When the body gets too warm, it perspires, leading to sweat evaporation which cools it down. When the air holds a significant amount of moisture, the efficiency of the evaporation process is decreased, preventing the body from cooling down efficiently, leading to the sensation of overheating. Temperature imbalances caused by excessive heat retention can trigger heat-related maladies.

Humidity

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

Rainfall

In Hernando, during September, the rain falls for 19.5 days and regularly aggregates up to 1.69" (43mm) of precipitation. In Hernando, during the entire year, the rain falls for 162 days and collects up to 20.24" (514mm) of precipitation.

Snowfall

February through December are months without snowfall.

Daylight

The average length of the day in September in Hernando 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

The months with the highest UV index in Hernando are May through September, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for the average person.
Note: The maximum daily UV index of 7 in September interprets into the following recommendations:
Endorse precautions and be consistent with sun safety guidelines. Preventing sunburn is paramount. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full 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.
Updated: Jul 17, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot does it get in September?

In Hernando, in September, the average high-temperature is 88.2°F (31.2°C), and the average low-temperature is 72.9°F (22.7°C). The average heat index (a.k.a. 'feels like', 'real feel'), which represents the influence of relative humidity on air temperature, in September is evaluated at 105.8°F (41°C).

What is the most humid month?

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

What is the average humidity in September?

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

How much does it rain in September?

In Hernando, in September, it is raining for 19.5 days, with typically 1.69" (43mm) of accumulated precipitation.

When it does not snow?

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

What is the average length of the day in September?

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

What time are sunrise and sunset in September?

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, sunrise is at 7:22 am and sunset at 7:16 pm EDT.

How long on average sun shines in September?

In September, the average sunshine duration is 8.9h.

What is the month with the highest UV index in Hernando?

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

What is the UV index intensity in September?

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

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).

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).

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%).

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").

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).

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").

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).

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).

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).

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).

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).

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).

Hernando, Florida, USA

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