September weather forecastSun City, AZ
September
Weather in September
The first month of the autumn, September, is still a very hot month in Sun City, Arizona, with an average temperature fluctuating between 77°F (25°C) and 95°F (35°C).Temperature
During the shift to September, Sun City records a mild decrease in average high-temperature, moving from a sweltering 100.9°F (38.3°C) in August to a still very hot 95°F (35°C). An average low-temperature of 77°F (25°C) is recorded in the month of September.Humidity
In Sun City, Arizona, the average relative humidity in September is 30%.Rainfall
In Sun City, during September, the rain falls for 7.1 days and regularly aggregates up to 1.18" (30mm) of precipitation. Throughout the year, there are 60.7 rainfall days, and 8.62" (219mm) of precipitation is accumulated.Daylight
In September, the average length of the day is 12h and 22min.On the first day of the month, sunrise is at 6:03 am and sunset at 6:54 pm. On the last day of September, sunrise is at 6:23 am and sunset at 6:14 pm MST.
Sunshine
In September, the average sunshine is 9.7h.UV index
In Sun City, the average daily maximum UV index in September is 7. A UV Index value of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: A maximum high UV index of 7 in September translates into the following recommendations:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Sun City, AZ
- Average high temperature in September: 95°F
The warmest month (with the highest average high temperature) is July (101.7°F).
The month with the lowest average high temperature is December (61.7°F).
- Average low temperature in September: 77°F
The month with the highest average low temperature is August (83.1°F).
The coldest months (with the lowest average low temperature) are January and December (46°F).
Average pressure in September
Sun City, AZ
- Average pressure in September: 29.86"Hg
The month with the highest atmospheric pressure is January (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.8"Hg).
Average wind speed in September
Sun City, AZ
- Average wind speed in September: 5.3mph
The windiest month (with the highest average wind speed) is April (6.7mph).
The calmest month (with the lowest average wind speed) is December (4.7mph).
Average humidity in September
Sun City, AZ
- Average humidity in September: 30%
The month with the highest relative humidity is December (44%).
The month with the lowest relative humidity is June (17%).
Average rainfall in September
Sun City, AZ
- Average rainfall in September: 1.18"
The wettest month (with the highest rainfall) is July (1.3").
The driest month (with the least rainfall) is June (0.12").
Average rainfall days in September
Sun City, AZ
- Average rainfall days in September: 7.1 days
The month with the highest number of rainy days is July (11.4 days).
The month with the least rainy days is June (1.2 days).
Average daylight in September /
Average sunshine in September
Sun City, AZ
- 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: 9h and 42min
The month with the most sunshine is June (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 48min).
Average sunshine days in September
Sun City, AZ
- Average sunshine days in September: 20.3 days
The month with the most sunshine days is May (28.2 days).
The month with the least sunshine days is July (15.2 days).
Average UV index in September
Sun City, AZ
- Average UV index in September: 7
The months with the highest UV index are June, July and August (UV index 8).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in September
Sun City, AZ
- Average cloud cover in September: 10
The month with the most cloud cover is December (Cloud cover 20).
The month with the least cloud cover is June (Cloud cover 5).
Average visibility in September
Sun City, AZ
- 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).
