September weather forecast and climate
Athena, FL

The first month of the autumn, September, is still a tropical month in Athena, Florida, with temperature in the range of an average high of 87.4°F (30.8°C) and an average low of 71.8°F (22.1°C).

Temperature

In Athena, Florida, the average high-temperature is relatively the same as in August - a still tropical 87.4°F (30.8°C). In Athena, the average low-temperature is 71.8°F (22.1°C).

Heat index

The average heat index in September is appraised at a very hot 102.6°F (39.2°C). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
Note that heat index values are valued for light wind and location in the shade. With the exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel', 'felt air temperature', 'feels like', or 'apparent temperature', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. This effect is individual, with diverse people perceiving weather differently for numerous reasons (clothing, wind, metabolic differences), and activity. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
The human body normally cools itself by perspiration, as evaporated sweat carries heat away from the body. 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 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

Months with the highest humidity are August, September and December, with an average relative humidity of 77%.

Rainfall

In Athena, during 18.3 rainfall days, 3.27" (83mm) of precipitation is typically accumulated. Throughout the year, there are 168.6 rainfall days, and 32.95" (837mm) of precipitation is accumulated.

Daylight

The average length of the day in Athena is 12.3h.

Sunshine

In Athena, the average sunshine is 8.7h.

UV index

In Athena, the average daily maximum UV index is 6. A UV Index of 6 to 7 symbolizes a high health hazard from the exposure to the Sun's UV rays for the ordinary person.
Note: The average daily UV index of 6 transform into the following instructions:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.

What is the temperature in September in Athena?

The average high-temperature, in September, is 87.4°F (30.8°C), while the average low-temperature is 71.8°F (22.1°C). The average heat index (a.k.a. 'apparent temperature', 'feels like'), that factores the actual air temperature with the relative humidity, in September is estimated at 102.6°F (39.2°C).

What is the most humid month in Athena?

August, September and December, with an average relative humidity of 77%, are most humid months in Athena, Florida.

What is the average humidity in September in Athena?

In Athena, the average relative humidity in September is 77%.

How many days does it rain in September in Athena?

In Athena, Florida, in September, during 18.3 rainfall days, 3.27" (83mm) of precipitation is typically accumulated.

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

In Athena, the average length of the day in September is 12.3h.

How long on average sun shines in September in Athena?

In Athena, the average sunshine in September is 8.7h.

How high is the UV index in September in Athena?

The average daily maximum UV index in September in Athena is 6. A UV Index value of 6 to 7 symbolizes a high health threat from the exposure to the Sun's UV rays.
Average temperature in September - Athena, FL
  • Average high temperature in September: 87.4°F

The warmest months (with the highest average high temperature) are July and August (90.3°F).
The month with the lowest average high temperature is January (62.2°F).

  • Average low temperature in September: 71.8°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 (45.5°F).

Average pressure in September - Athena, FL
  • Average pressure in September: 29.98"

The month with the highest atmospheric pressure is January (30.15").
Months with the lowest atmospheric pressure are June, August and September (29.98").

Average wind speed in September - Athena, FL
  • Average wind speed in September: 5.4mph

The windiest month (with the highest average wind speed) is January (7.2mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).

Average humidity in September - Athena, FL
  • Average humidity in September: 77%

Months with the highest relative humidity are August, September and December (77%).
Months with the lowest relative humidity are January and May (72%).

Average rainfall in September - Athena, FL
  • Average rainfall in September: 3.27"

The wettest month (with the highest rainfall) is August (5.35").
The driest month (with the least rainfall) is November (1.02").

Average rainfall days in September - Athena, FL
  • Average rainfall days in September: 18.3 days

The month with the highest number of rainy days is August (24.8 days).
The month with the least rainy days is November (6.8 days).

Average daylight in September / Average sunshine in September - Athena, FL
  • Average daylight in September: 12.3h

The month with the longest days is June (Average daylight: 14.1h).
The month with the shortest days is December (Average daylight: 10.2h).

  • Average sunshine in September: 8.7h

The month with the most sunshine is July (Average sunshine: 10.9h).
The month with the least sunshine is December (Average sunshine: 5.9h).

Average sunshine days in September - Athena, FL
  • Average sunshine days in September: 9.5 days

The month with the most sunshine days is November (21.1 days).
The month with the least sunshine days is August (3.8 days).

Average UV index in September - Athena, FL
  • Average UV index in September: 6

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 3).

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

The month with the most cloud cover is December (Cloud cover 38).
The month with the least cloud cover is May (Cloud cover 24).

Average visibility in September - Athena, FL
  • Average visibility in September: 6mi

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).