September weather forecast
Rainbow Falls, FL

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Weather in September

The first month of the autumn, September, is also a hot month in Rainbow Falls, Florida, with an average temperature fluctuating between 72.7°F (22.6°C) and 88°F (31.1°C).

Temperature

Rainbow Falls starts September with an average high-temperature of a still tropical 88°F (31.1°C), hinting at a minimal fluctuation from August. An average low-temperature of 72.7°F (22.6°C) is anticipated throughout the nights during September.

Heat index

The heat index value for September is evaluated at an extremely hot 105.8°F (41°C). Adopt special protective actions against heat exhaustion and heat cramps. Long-duration activity risks heatstroke.
Understand that the heat index values take into account shaded locations and mild winds. The heat index may experience an enhancement of 15 Fahrenheit (8 Celsius) degrees under direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is a composite of temperature and humidity figures to convey how warm it feels. Elements of metabolic variation, physical activity, and clothing contribute to the effect of temperature on an individual. Understand that direct sun rays can influence the weather's impact, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Kids often lack the knowledge about the necessity to take breaks and consume liquids. Thirst, as a late symptom of dehydration, necessitates the maintenance of hydration, particularly during enduring physical activities.
Perspiration, followed by sweat evaporation, is the human body's chief method to maintain a balanced temperature. When relative humidity is on the rise, it curtails evaporation, thereby reducing the heat elimination from the body and causing the feeling of being excessively hot. 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

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

Rainfall

In September, the rain falls for 17.5 days. Throughout September, 1.26" (32mm) of precipitation is accumulated. Throughout the year, there are 147.9 rainfall days, and 14.8" (376mm) of precipitation is accumulated.

Snowfall

February through December are months without snowfall.

Daylight

The average length of the day in September is 12h and 19min.
On the first day of September, sunrise is at 7:07 am and sunset at 7:51 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 7:16 pm EDT.

Sunshine

In Rainbow Falls, the average sunshine in September is 8.7h.

UV index

In September, the average daily maximum UV index in Rainbow Falls is 6. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for average individuals.
Note: The daily high UV index of 6 in September translates into this advice:
Avoid excessive sunlight. Those with lighter skin may experience burning in less than 20 minutes. 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. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.
Updated: Aug 16, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Is it hot during September?

Rainbow Falls in September has an average high-temperature of 88°F (31.1°C) and an average low-temperature of 72.7°F (22.6°C). The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, in September is evaluated at 105.8°F (41°C).

What are the most humid months?

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

What is the average humidity in September?

The average relative humidity in September is 78%.

How much does it rain in September?

In Rainbow Falls, in September, during 17.5 rainfall days, 1.26" (32mm) of precipitation is typically accumulated.

When it does not snow in Rainbow Falls?

February through December are months without snowfall.

What is the average length of the day in September?

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

When is the sunrise / sunset in September in Rainbow Falls?

On the first day of September, sunrise is at 7:07 am and sunset at 7:51 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 7:16 pm EDT.

How many hours of sunshine does Rainbow Falls have in September?

In Rainbow Falls, the average sunshine duration in September is 8.7h.

How high is the UV index in September?

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

Average temperature in September
Rainbow Falls, FL

Average temperature in September - Rainbow Falls, FL
  • Average high temperature in September: 88°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 (65.8°F).

  • Average low temperature in September: 72.7°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 (48°F).

Average pressure in September
Rainbow Falls, FL

Average pressure in September - Rainbow Falls, 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
Rainbow Falls, FL

Average wind speed in September - Rainbow Falls, FL
  • Average wind speed in September: 5mph

The windiest month (with the highest average wind speed) is April (6.7mph).
The calmest month (with the lowest average wind speed) is July (4.7mph).

Average humidity in September
Rainbow Falls, FL

Average humidity in September - Rainbow Falls, 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 (71%).

Average rainfall in September
Rainbow Falls, FL

Average rainfall in September - Rainbow Falls, FL
  • Average rainfall in September: 1.26"

The wettest month (with the highest rainfall) is July (2.6").
The driest month (with the least rainfall) is March (0.43").

Average rainfall days in September
Rainbow Falls, FL

Average rainfall days in September - Rainbow Falls, FL
  • Average rainfall days in September: 17.5 days

The month with the highest number of rainy days is July (21.5 days).
The month with the least rainy days is December (6.5 days).

Average snowfall days in September
Rainbow Falls, FL

Average snowfall days in September - Rainbow Falls, 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
Rainbow Falls, FL

Average daylight in September / Average sunshine in September - Rainbow Falls, 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 4min

The months with the most sunshine are May and July (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 6h and 12min).

Average sunshine days in September
Rainbow Falls, FL

Average sunshine days in September - Rainbow Falls, FL
  • Average sunshine days in September: 8.7 days

The month with the most sunshine days is January (22 days).
The month with the least sunshine days is July (6.2 days).

Average UV index in September
Rainbow Falls, FL

Average UV index in September - Rainbow Falls, FL
  • Average UV index in September: 6

The months with the highest UV index are May, June, July and August (UV index 7).
The month with the lowest UV index is January (UV index 4).

Average cloud cover in September
Rainbow Falls, FL

Average cloud cover in September - Rainbow Falls, FL
  • Average cloud cover in September: 32

The months with the most cloud cover are February and December (Cloud cover 36).
The months with the least cloud cover are May and October (Cloud cover 28).

Average visibility in September
Rainbow Falls, FL

Average visibility in September - Rainbow Falls, 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).

Rainbow Falls, Florida, USA

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