September weather forecast
Senoia, GA

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Weather in September

September, the first month of the autumn in Senoia, is still a warm month, with an average temperature fluctuating between 65.1°F (18.4°C) and 83.7°F (28.7°C).

Temperature

The arrival of September coincides with an average high-temperature of a moderately hot 83.7°F (28.7°C), indicating a minimal shift from August's 88.5°F (31.4°C). Senoia's temperature in September lowers to a consistent average of 65.1°F (18.4°C) during the nights.

Heat index

In September, the heat index is evaluated at a hot 91.4°F (33°C). Undertake special precautions, the probability of heat exhaustion and heat cramps is high. Prolonged activity may provoke heatstroke.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Heat index values may rise by up to 15 Fahrenheit (8 Celsius) degrees when exposed to direct sunlight.
Note: The heat index, also known as 'real feel' or 'felt air temperature', quantifies the warmth felt when relative humidity is considered. The experience of temperature can be subjective, varying based on the individual's activity and heat perception, influenced by factors like wind, attire, and metabolic variations. Exposure to direct sun rays can influence the heat you feel, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Children often do not understand the need to rest and hydrate. Thirst is a late manifestation of dehydration - therefore, it is essential to stay hydrated, particularly during prolonged physical activities.

Humidity

The average relative humidity in September is 73%.

Rainfall

In Senoia, during September, the rain falls for 13.7 days and regularly aggregates up to 2.76" (70mm) of precipitation. In Senoia, during the entire year, the rain falls for 179.7 days and collects up to 39.76" (1010mm) of precipitation.

Snowfall

April through October are months without snowfall.

Daylight

In Senoia, the average length of the day in September is 12h and 22min.
On the first day of the month, sunrise is at 7:12 am and sunset at 8:03 pm. On the last day of September, sunrise is at 7:32 am and sunset at 7:23 pm EDT.

Sunshine

The average sunshine in September is 8.6h.

UV index

The months with the highest UV index are May through September, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for the average person.
Note: In September, the average maximum UV index of 6 translates into the following recommendations:
Use measures and accept sun safety conventions. Guarding against skin and eye trauma is of high priority. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.

Frequently asked questions

Is it hot during September?

In September, the average high-temperature and low-temperature are 83.7°F (28.7°C) and 65.1°F (18.4°C) respectively. The average heat index (a.k.a. 'felt air temperature', 'real feel'), which factors the actual air temperature with the relative humidity, in September is evaluated at 91.4°F (33°C).

What is the average humidity in September?

The average relative humidity in September is 73%.

How much does it rain in September?

In September, in Senoia, the rain falls for 13.7 days. Throughout September, 2.76" (70mm) of precipitation is accumulated.

When it does not snow?

In Senoia, snow does not fall in April through October.

How many hours of daylight does Senoia have in September?

In September, the average day length is 12h and 22min.

What time are sunrise and sunset in September?

In September, on the first day of the month, sunrise is at 7:12 am and sunset at 8:03 pm. On the last day of the month, in Senoia, sunrise is at 7:32 am and sunset at 7:23 pm EDT.

How many hours of sunshine does Senoia have in September?

The average sunshine duration in September is 8.6h.

What are the months with the highest UV index?

May through September, with an average maximum UV index of 6, are months with the highest UV index in Senoia.

How high is the UV index in September?

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

Average temperature in September
Senoia, GA

Average temperature in September - Senoia, GA
  • Average high temperature in September: 83.7°F

The warmest month (with the highest average high temperature) is July (89.8°F).
The month with the lowest average high temperature is January (51.6°F).

  • Average low temperature in September: 65.1°F

The month with the highest average low temperature is July (70.5°F).
The coldest month (with the lowest average low temperature) is January (35.4°F).

Average pressure in September
Senoia, GA

Average pressure in September - Senoia, GA
  • Average pressure in September: 30.02"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.99"Hg).

Average wind speed in September
Senoia, GA

Average wind speed in September - Senoia, GA
  • Average wind speed in September: 4.8mph

The windiest month (with the highest average wind speed) is January (7.8mph).
The calmest month (with the lowest average wind speed) is August (4.4mph).

Average humidity in September
Senoia, GA

Average humidity in September - Senoia, GA
  • Average humidity in September: 73%

The month with the highest relative humidity is December (78%).
The months with the lowest relative humidity are October and November (72%).

Average rainfall in September
Senoia, GA

Average rainfall in September - Senoia, GA
  • Average rainfall in September: 2.76"

The wettest month (with the highest rainfall) is August (5.04").
The driest month (with the least rainfall) is October (2.13").

Average rainfall days in September
Senoia, GA

Average rainfall days in September - Senoia, GA
  • Average rainfall days in September: 13.7 days

The month with the highest number of rainy days is July (22.8 days).
The month with the least rainy days is October (9.5 days).

Average snowfall in September
Senoia, GA

Average snowfall in September - Senoia, GA
  • Average snowfall in September: 0"

The month with the highest snowfall is January (0.47").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in September
Senoia, GA

Average snowfall days in September - Senoia, GA
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (0.9 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in September /
Average sunshine in September
Senoia, GA

Average daylight in September / Average sunshine in September - Senoia, GA
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).

  • Average sunshine in September: 8h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).

Average sunshine days in September
Senoia, GA

Average sunshine days in September - Senoia, GA
  • Average sunshine days in September: 14.2 days

The month with the most sunshine days is October (20.8 days).
The month with the least sunshine days is July (7 days).

Average UV index in September
Senoia, GA

Average UV index in September - Senoia, GA
  • Average UV index in September: 6

The months with the highest UV index are May, June, July, August and September (UV index 6).
The months with the lowest UV index are January, February and December (UV index 3).

Average cloud cover in September
Senoia, GA

Average cloud cover in September - Senoia, GA
  • Average cloud cover in September: 32

The month with the most cloud cover is December (Cloud cover 46).
The months with the least cloud cover are June and October (Cloud cover 31).

Average visibility in September
Senoia, GA

Average visibility in September - Senoia, GA
  • 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).

Senoia, Georgia, USA

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