September weather forecastPhoenix, GA
September
Weather in September
September, the first month of the autumn in Phoenix, is also a moderately hot month, with an average temperature fluctuating between 65.8°F (18.8°C) and 85.1°F (29.5°C).Temperature
September's onset records a minor alteration in the average high-temperature to a warm 85.1°F (29.5°C) from August's 90.1°F (32.3°C). Phoenix encounters a steady low-temperature average of 65.8°F (18.8°C) throughout the month of September.Heat index
The heat index in September is estimated at a very hot 95°F (35°C). Incorporate additional safety actions, heat cramps and heat exhaustion are possible. Long-term activity may induce heatstroke.Take into consideration that the heat index values are calculated for shade and light wind conditions. Being under direct sunlight might amplify the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', offers an insight into how hot it feels when we factor in moisture content. Elements such as metabolic variations, pregnancy, and physical exertion can shape one's weather perception. Awareness is key; direct sunlight can enhance the weather's impact, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Youths are typically more endangered than adults since they usually sweat less. Their larger skin surface concerning their smaller bodies and higher heat production due to activity further adds to their vulnerability.
For the human body, perspiration is the go-to method to regulate temperature, using sweat's evaporation to dissipate warmth. Excessive relative humidity disturbs the body's typical cooling process by reducing evaporation, leading to a decrease in body cooling rate and an increase in the sensation of warmth. The body is at risk of dehydration and related complications when it fails to shed excessive heat.
Humidity
In September, the average relative humidity in Phoenix is 73%.Rainfall
September is the month with the least rainfall. Rain falls for 12.7 days and accumulates 1.93" (49mm) of precipitation.Snowfall
In Phoenix, snow does not fall in April through November.Daylight
The average length of the day in September is 12h and 22min.On the first day of September in Phoenix, sunrise is at 7:07 am and sunset at 7:57 pm. On the last day of the month, sunrise is at 7:27 am and sunset at 7:18 pm EDT.
Sunshine
The average sunshine in September is 8.6h.UV index
The average daily maximum UV index in September in Phoenix is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for average individuals.Note: The UV index of 6 in September translates into these instructions:
Skirt overexposure. People with light complexions might get scorched in under 20 minutes. Avoid direct Sun exposure and seek shade between 10 a.m. and 4 p.m., when UV radiation is at its peak, but keep in mind that not all shade structures provide complete protection. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Phoenix, GA
- Average high temperature in September: 85.1°F
The warmest month (with the highest average high temperature) is July (91.4°F).
The month with the lowest average high temperature is January (53.1°F).
- Average low temperature in September: 65.8°F
The month with the highest average low temperature is July (71.2°F).
The coldest month (with the lowest average low temperature) is January (37°F).
Average pressure in September
Phoenix, GA
- Average pressure in September: 30.02"Hg
The months with the highest atmospheric pressure are January and November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).
Average wind speed in September
Phoenix, GA
- Average wind speed in September: 5mph
The windiest month (with the highest average wind speed) is January (7.5mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).
Average humidity in September
Phoenix, GA
- Average humidity in September: 73%
The month with the highest relative humidity is December (77%).
The months with the lowest relative humidity are October and November (72%).
Average rainfall in September
Phoenix, GA
- Average rainfall in September: 1.93"
The wettest month (with the highest rainfall) is August (3.94").
The driest month (with the least rainfall) is September (1.93").
Average rainfall days in September
Phoenix, GA
- Average rainfall days in September: 12.7 days
The month with the highest number of rainy days is July (20.3 days).
The month with the least rainy days is November (8.3 days).
Average snowfall in September
Phoenix, GA
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.24").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Phoenix, GA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.8 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Phoenix, GA
- Average daylight in September: 12h and 24min
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 36min
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 18min).
Average sunshine days in September
Phoenix, GA
- Average sunshine days in September: 14.9 days
The month with the most sunshine days is October (20.9 days).
The month with the least sunshine days is July (9 days).
Average UV index in September
Phoenix, GA
- Average UV index in September: 6
The month with the highest UV index is June (UV index 7).
The months with the lowest UV index are January, February and December (UV index 3).
Average cloud cover in September
Phoenix, GA
- Average cloud cover in September: 31
The month with the most cloud cover is December (Cloud cover 43).
The months with the least cloud cover are June and October (Cloud cover 29).
Average visibility in September
Phoenix, 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).
