September weather forecast
Rocky Creek, FL

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Weather in September

September, the first month of the autumn in Rocky Creek, is still a tropical month, with an average temperature ranging between max 88.7°F (31.5°C) and min 76.1°F (24.5°C).

Temperature

The shift into September reveals an average high-temperature of a still hot 88.7°F (31.5°C), closely mirroring August's climate. Throughout the nights in September, Rocky Creek experiences an average low-temperature of 76.1°F (24.5°C).

Heat index

The heat index value for September is calculated to be a scorching 104°F (40°C). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
Thinking about the heat index, one should account for its values in shaded areas with gentle breezes. Exposure to unobstructed sunshine could lead to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is a fusion of air temperature and moisture levels to demonstrate the sensation of heat. The effect is personal, with varied weather perceptions among individuals due to differences in body mass, stature, and physical activity. It is noteworthy that being in direct sunlight can enhance the weather's impact, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Children often miss understanding the importance of rest and rehydration. Thirst usually appears late during dehydration - therefore, maintaining hydration, particularly during long physical activities, is essential.
Perspiration and the resultant sweat evaporation are the body's natural thermostat, helping regulate temperature. 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. Accumulating heat beyond the body's cooling measures leads to rising temperatures and potential ailments.

Humidity

In September, the average relative humidity is 74%.

Rainfall

In Rocky Creek, in September, it is raining for 21.2 days, with typically 3.9" (99mm) of accumulated precipitation. Throughout the year, there are 178.2 rainfall days, and 32.87" (835mm) of precipitation is accumulated.

Daylight

In September, the average length of the day is 12h and 19min.
On the first day of September, sunrise is at 7:09 am and sunset at 7:50 pm. On the last day of the month, sunrise is at 7:23 am and sunset at 7:17 pm EDT.

Sunshine

The average sunshine in September is 8.9h.

UV index

May through September, with an average maximum UV index of 7, are months with the highest UV index in Rocky Creek. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for average individuals.
Note: A maximum UV index of 7 in September translates into the following recommendations:
Sidestep overexposure. Individuals with fair complexions risk burning in fewer than 20 minutes. 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. During bright days, sunglasses that offer UVA and UVB defense are recommended.
Updated: Aug 15, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is September?

September temperatures vary between a high-temperature of 88.7°F (31.5°C) and a low-temperature of 76.1°F (24.5°C). In September, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which factors the actual air temperature with the relative humidity, is calculated to be 104°F (40°C).

What is the average humidity in September?

In September, the average relative humidity is 74%.

How much does it rain in September?

In Rocky Creek, in September, it is raining for 21.2 days, with typically 3.9" (99mm) of accumulated precipitation.

What is the average length of the day in September?

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

When are sunrise and sunset in September?

On the first day of September, sunrise is at 7:09 am and sunset at 7:50 pm. On the last day of the month, sunrise is at 7:23 am and sunset at 7:17 pm EDT.

How many hours of sunshine does Rocky Creek have in September?

In Rocky Creek, the average sunshine duration in September is 8.9h.

What are the months with the highest UV index?

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?

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

Average temperature in September
Rocky Creek, FL

Average temperature in September - Rocky Creek, FL
  • Average high temperature in September: 88.7°F

The warmest month (with the highest average high temperature) is August (90.3°F).
The month with the lowest average high temperature is January (67.8°F).

  • Average low temperature in September: 76.1°F

The month with the highest average low temperature is August (79°F).
The coldest month (with the lowest average low temperature) is January (53.4°F).

Average pressure in September
Rocky Creek, FL

Average pressure in September - Rocky Creek, FL
  • Average pressure in September: 29.96"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is September (29.96"Hg).

Average wind speed in September
Rocky Creek, FL

Average wind speed in September - Rocky Creek, FL
  • Average wind speed in September: 6.2mph

The windiest month (with the highest average wind speed) is March (7.8mph).
The calmest month (with the lowest average wind speed) is July (5.8mph).

Average humidity in September
Rocky Creek, FL

Average humidity in September - Rocky Creek, FL
  • Average humidity in September: 74%

The month with the highest relative humidity is December (75%).
The month with the lowest relative humidity is May (69%).

Average rainfall in September
Rocky Creek, FL

Average rainfall in September - Rocky Creek, FL
  • Average rainfall in September: 3.9"

The wettest month (with the highest rainfall) is July (5.67").
The driest month (with the least rainfall) is November (1.26").

Average rainfall days in September
Rocky Creek, FL

Average rainfall days in September - Rocky Creek, FL
  • Average rainfall days in September: 21.2 days

The month with the highest number of rainy days is August (25.3 days).
The month with the least rainy days is November (8.2 days).

Average daylight in September /
Average sunshine in September
Rocky Creek, FL

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

The month with the longest days is June (Average daylight: 13h and 54min).
The month with the shortest days is December (Average daylight: 10h and 24min).

  • 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
Rocky Creek, FL

Average sunshine days in September - Rocky Creek, FL
  • Average sunshine days in September: 6.9 days

The month with the most sunshine days is November (20.3 days).
The months with the least sunshine days are July and August (4.3 days).

Average UV index in September
Rocky Creek, FL

Average UV index in September - Rocky Creek, 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
Rocky Creek, FL

Average cloud cover in September - Rocky Creek, FL
  • Average cloud cover in September: 30

The months with the most cloud cover are January and December (Cloud cover 33).
The month with the least cloud cover is May (Cloud cover 24).

Average visibility in September
Rocky Creek, FL

Average visibility in September - Rocky Creek, 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).

Rocky Creek, Florida, USA

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