September weather forecast and climate
Active, AL

The first month of the autumn, September, is still a hot month in Active, Alabama, with average temperature varying between 86.5°F (30.3°C) and 66.9°F (19.4°C).

Temperature

In September, the average high-temperature is almost the same as in August - a still tropical 86.5°F (30.3°C). The average low-temperature, in Active, is 66.9°F (19.4°C).

Heat index

The average heat index is evaluated at a sweltering 97.3°F (36.3°C). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
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 'feels like', 'apparent temperature', 'real feel', or 'felt air temperature', is a measure that combines both air temperature and relative humidity into a single value that indicates how hot the weather feels. Additional factors like clothing, metabolic differences, wind, and activity influence one's weather impression. 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 especially crucial for babies and toddlers. 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.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. High relative humidity reduces the evaporation rate, resulting in a lower heat removal rate from the body, causing the perception of being overheated. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.

Humidity

In Active, the average relative humidity in September is 72%.

Rainfall

The month with the least rainfall in Active is September when the rain falls for 9.8 days and typically collects 0.59" (15mm) of precipitation.

Snowfall

March through November are months without snowfall.

Daylight

The average length of the day in Active is 12.4h.

Sunshine

In September, the average sunshine in Active is 9.1h.

UV index

The average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high health hazard from the exposure to the Sun's UV rays for the average person.
Note: The average daily UV index of 6 in September transform into the following instructions:
Take precautions and utilize sun safety practices. Protection against the skin and eye damage is required. 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. 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.

What is the temperature in September in Active?

The average high-temperature, in September, in Active, is 86.5°F (30.3°C), while the average low-temperature is 66.9°F (19.4°C). The average heat index (a.k.a. 'feels like', 'real feel'), that calculates temperature value influenced by the moisture in the air, in September is evaluated at 97.3°F (36.3°C).

What is the average humidity in September in Active?

In Active, the average relative humidity in September is 72%.

How much does it rain in Active in September?

In Active, in September, during 9.8 rainfall days, 0.59" (15mm) of precipitation is typically accumulated.

What is the driest month in Active?

September is the month with the least rainfall. Rain falls for 9.8 days and accumulates 0.59" (15mm) of precipitation.

When it does not snow in Active?

March through November are months without snowfall in Active, Alabama.

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

In September, the average length of the day in Active is 12.4h.

How long on average sun shines in September in Active?

In September, the average sunshine in Active, Alabama, is 9.1h.

What is the UV index reading in September in Active?

In Active, the average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from the exposure to the Sun's UV rays.
Average temperature in September - Active, AL
  • Average high temperature in September: 86.5°F

The warmest month (with the highest average high temperature) is July (91.8°F).
The month with the lowest average high temperature is January (52.7°F).

  • Average low temperature in September: 66.9°F

The month with the highest average low temperature is July (71.4°F).
The coldest month (with the lowest average low temperature) is January (37.2°F).

Average pressure in September - Active, AL
  • Average pressure in September: 30"

The month with the highest atmospheric pressure is January (30.17").
The month with the lowest atmospheric pressure is June (29.97").

Average wind speed in September - Active, AL
  • Average wind speed in September: 5.1mph

The windiest month (with the highest average wind speed) is February (7.3mph).
The calmest months (with the lowest average wind speed) are July and August (4.5mph).

Average humidity in September - Active, AL
  • Average humidity in September: 72%

The month with the highest relative humidity is December (80%).
The month with the lowest relative humidity is October (70%).

Average rainfall in September - Active, AL
  • Average rainfall in September: 0.59"

The wettest month (with the highest rainfall) is July (1.61").
The driest month (with the least rainfall) is September (0.59").

Average rainfall days in September - Active, AL
  • Average rainfall days in September: 9.8 days

The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is November (6 days).

Average snowfall in September - Active, AL
  • Average snowfall in September: 0"

Months with the highest snowfall are January and February (0.12").
Months with the least snowfall are March, April, May, June, July, August, September, October and November (0").

Average snowfall days in September - Active, AL
  • Average snowfall days in September: 0 days

Months with the highest number of snowfall days are January and February (0.6 days).
Months with the least snowfall days are April, May, June, July, August, September and October (0 days).

Average daylight in September / Average sunshine in September - Active, AL
  • Average daylight in September: 12.4h

The month with the longest days is June (Average daylight: 14.3h).
The month with the shortest days is December (Average daylight: 10h).

  • Average sunshine in September: 9.1h

The month with the most sunshine is June (Average sunshine: 10.7h).
Months with the least sunshine are February and December (Average sunshine: 4.9).

Average sunshine days in September - Active, AL
  • Average sunshine days in September: 17.5 days

The month with the most sunshine days is October (23.3 days).
The month with the least sunshine days is July (10 days).

Average UV index in September - Active, AL
  • Average UV index in September: 6

Months with the highest UV index are June and July (UV index 7).
Months with the lowest UV index are January, February and December (UV index 3).

Average cloud cover in September - Active, AL
  • Average cloud cover in September: 30

Months with the most cloud cover are February and December (Cloud cover 47).
The month with the least cloud cover is October (Cloud cover 29).

Average visibility in September - Active, AL
  • 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).