Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
September brings a marginal elevation to a moderately hot 82.9°F (28.3°C) from August's 88.2°F (31.2°C) in Alto's average high-temperatures. During September, Alto experiences an average low-temperature of 61.5°F (16.4°C) at night.Heat index
Throughout September, the heat index is evaluated at a tropical 89.6°F (32°C). Persisting in activity during exposure could lead to weariness and subsequently to heat cramps.Heat index specifics point out values are for conditions of shade and a slight breeze. Direct exposure to sunlight could raise the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is an amalgamation of air temperature and humidity to express the equivalent perceived temperature. Factors encompassing physical activity, clothing, and metabolic differences have a role in shaping the individual's impression of temperature. One should be aware that direct sunshine can amplify the perceived temperature, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Young ones often disregard the necessity to rest and hydrate. Thirst usually indicates advanced dehydration - hence, it is key to stay hydrated, particularly during ongoing physical activities.
Humidity
The average relative humidity in September is 74%.Rainfall
The month with the least rainfall is September, when the rain falls for 10.9 days and typically collects 1.93" (49mm) of precipitation.Snowfall
In Alto, snow does not fall in April through October.Daylight
The average length of the day in September is 12h and 23min.On the first day of the month, sunrise is at 7:08 am and sunset at 8:00 pm. On the last day of September, sunrise is at 7:28 am and sunset at 7:19 pm EDT.
Sunshine
In September, the average sunshine in Alto is 8.4h.UV index
In Alto, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: A typical high UV index of 5 in September suggests the following recommendations:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. Stay sun-safe with clothing that is both closely woven and worn loosely.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it hot in Alto during September?
What is the average humidity in September in Alto?
What is the driest month in Alto?
How much does it rain in Alto in September?
When it does not snow in Alto?
How many hours of daylight does Alto have in September?
What time are sunrise and sunset in September in Alto?
How long on average sun shines in September in Alto?
What is the UV index reading in September in Alto?
Average temperature in September
Alto, GA
- Average high temperature in September: 82.9°F
The warmest month (with the highest average high temperature) is July (89.2°F).
The month with the lowest average high temperature is January (48.7°F).
- Average low temperature in September: 61.5°F
The month with the highest average low temperature is July (67.5°F).
The coldest month (with the lowest average low temperature) is January (32.7°F).
Average pressure in September
Alto, GA
- Average pressure in September: 30.03"Hg
The months with the highest atmospheric pressure are January and November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.99"Hg).
Average wind speed in September
Alto, GA
- Average wind speed in September: 4.5mph
The windiest months (with the highest average wind speed) are January and February (6.5mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).
Average humidity in September
Alto, GA
- Average humidity in September: 74%
The month with the highest relative humidity is December (78%).
The month with the lowest relative humidity is July (72%).
Average rainfall in September
Alto, GA
- Average rainfall in September: 1.93"
The wettest month (with the highest rainfall) is December (4.33").
The driest month (with the least rainfall) is September (1.93").
Average rainfall days in September
Alto, GA
- Average rainfall days in September: 10.9 days
The months with the highest number of rainy days are May and July (15.1 days).
The month with the least rainy days is October (8.8 days).
Average snowfall in September
Alto, GA
- Average snowfall in September: 0"
The month with the highest snowfall is December (3.27").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Alto, GA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.8 days).
The 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
Alto, GA
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in September: 8h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 5h and 6min).
Average sunshine days in September
Alto, GA
- Average sunshine days in September: 17.4 days
The month with the most sunshine days is October (21.3 days).
The month with the least sunshine days is February (12.7 days).
Average UV index in September
Alto, GA
- Average UV index in September: 5
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in September
Alto, GA
- Average cloud cover in September: 32
The month with the most cloud cover is December (Cloud cover 45).
The months with the least cloud cover are June and July (Cloud cover 29).
Average visibility in September
Alto, GA
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, June, July, August, September, October and November (6mi).
The months with the lowest visibility are April, May and December (5mi).
Alto, Georgia, USA
Weather forecast for your location
2. Allow the app to use your location