September weather forecast
Riverland, FL

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Weather in September

September, the first month of the autumn in Riverland, is still a hot month, with an average temperature fluctuating between 80.4°F (26.9°C) and 86.2°F (30.1°C).

Temperature

Riverland experiences an average high-temperature of a still tropical 86.2°F (30.1°C) with the onset of September, subtly varied from August's 87.6°F (30.9°C). During September's nights, Riverland notes a minor temperature decline, reaching an average of 80.4°F (26.9°C).

Heat index

In September, the heat index is calculated to be a fiery hot 96.8°F (36°C). Implement additional preventive actions, heat cramps and heat exhaustion are potential hazards. Heatstroke could follow prolonged activity.
Bear in mind that the heat index values are determined for shaded areas and light breezes. Uninterrupted exposure to the sun may boost the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', evaluates the perceived heat by adding the effect of moisture in the air. A person's impression of weather can be shaped by many aspects, among them metabolic variations, pregnancy, and levels of physical activity. Considering the impact of direct sunlight, it's possible for the heat index to surge by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Kids generally face higher risks than adults as they sweat less. Along with their large skin surface compared to their small bodies and higher heat production due to their activities, their vulnerability is increased.
Evaporation of sweat is the main factor behind the cooling effect of perspiration in the human body. With a high level of moisture in the air, the evaporation process becomes less efficient, preventing the body from cooling down efficiently and resulting in a sensation of overheating. When heat uptake goes beyond the body's cooling mechanisms, there's a surge in body temperature, posing health risks.

Humidity

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

Rainfall

In Riverland, Florida, in September, it is raining for 26.9 days, with typically 7.68" (195mm) of accumulated precipitation. Throughout the year, there are 240.3 rainfall days, and 50.75" (1289mm) of precipitation is accumulated.

Daylight

The average length of the day in September in Riverland is 12h and 18min.
On the first day of the month, sunrise is at 7:01 am and sunset at 7:39 pm. On the last day of September, in Riverland, sunrise is at 7:12 am and sunset at 7:08 pm EDT.

Sunshine

In Riverland, the average sunshine in September is 9h.

UV index

The months with the highest UV index are May through September, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for average individuals.
Note: A maximum high UV index of 7 in September translates into the following recommendations:
Guard against overexposure. Protection from sun-induced harm is essential. 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. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.
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Frequently asked questions

How hot is September in Riverland?

In September, in Riverland, the average high-temperature is 86.2°F (30.1°C), and the average low-temperature is 80.4°F (26.9°C). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which represents the influence of relative humidity on air temperature, in September is calculated to be 96.8°F (36°C).

What is the average humidity in September in Riverland?

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

How many days does it rain in September in Riverland?

In Riverland, in September, during 26.9 rainfall days, 7.68" (195mm) of precipitation is typically accumulated.

How many hours of daylight does Riverland have in September?

In Riverland, the average day length in September is 12h and 18min.

When is the sunrise / sunset in September in Riverland?

In September, on the first day of the month, sunrise is at 7:01 am and sunset at 7:39 pm. On the last day of the month, in Riverland, Florida, sunrise is at 7:12 am and sunset at 7:08 pm EDT.

How many hours of sunshine does Riverland have in September?

In September, the average sunshine duration in Riverland, Florida, is 9h.

When is the highest UV index in Riverland?

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

What is the UV index reading in September in Riverland?

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

Average temperature in September
Riverland, FL

Average temperature in September - Riverland, FL
  • Average high temperature in September: 86.2°F

The warmest month (with the highest average high temperature) is August (87.6°F).
The month with the lowest average high temperature is January (73.2°F).

  • Average low temperature in September: 80.4°F

The month with the highest average low temperature is August (82°F).
The coldest month (with the lowest average low temperature) is January (64°F).

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Average pressure in September
Riverland, FL

Average pressure in September - Riverland, FL
  • Average pressure in September: 29.95"Hg

The month with the highest atmospheric pressure is January (30.11"Hg).
The months with the lowest atmospheric pressure are September and October (29.95"Hg).

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Average wind speed in September
Riverland, FL

Average wind speed in September - Riverland, FL
  • Average wind speed in September: 8mph

The windiest month (with the highest average wind speed) is March (10.9mph).
The calmest month (with the lowest average wind speed) is July (7.6mph).

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Average humidity in September
Riverland, FL

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

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

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Average rainfall in September
Riverland, FL

Average rainfall in September - Riverland, FL
  • Average rainfall in September: 7.68"

The wettest month (with the highest rainfall) is August (8.23").
The driest month (with the least rainfall) is January (1.38").

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Average rainfall days in September
Riverland, FL

Average rainfall days in September - Riverland, FL
  • Average rainfall days in September: 26.9 days

The month with the highest number of rainy days is August (28.1 days).
The month with the least rainy days is February (13 days).

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

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

The month with the longest days is June (Average daylight: 13h and 42min).
The month with the shortest days is December (Average daylight: 10h and 30min).

  • Average sunshine in September: 9h and 0min

The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 6h and 12min).

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Average sunshine days in September
Riverland, FL

Average sunshine days in September - Riverland, FL
  • Average sunshine days in September: 1.9 days

The month with the most sunshine days is March (12.9 days).
The months with the least sunshine days are July, August and September (1.9 days).

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Average UV index in September
Riverland, FL

Average UV index in September - Riverland, 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 months with the lowest UV index are January and December (UV index 5).

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Average cloud cover in September
Riverland, FL

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

The month with the most cloud cover is October (Cloud cover 36).
The months with the least cloud cover are April and July (Cloud cover 28).

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Average visibility in September
Riverland, FL

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

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