September weather forecastSentinel, AZ
September
Weather in September
September, the first month of the autumn in Sentinel, is also a sweltering month, with an average temperature ranging between min 79.5°F (26.4°C) and max 96.3°F (35.7°C).Temperature
Sentinel experiences a recorded average high-temperature of a still torrid 96.3°F (35.7°C) in September, closely aligned with August's 101.5°F (38.6°C). Throughout September, the temperature falls to an average low of 79.5°F (26.4°C).Humidity
The average relative humidity in September is 31%.Rainfall
In Sentinel, during September, the rain falls for 8.2 days and regularly aggregates up to 0.83" (21mm) of precipitation. In Sentinel, Arizona, during the entire year, the rain falls for 58 days and collects up to 6.69" (170mm) of precipitation.Daylight
In Sentinel, the average length of the day in September is 12h and 22min.On the first day of the month, sunrise is at 6:08 am and sunset at 6:57 pm. On the last day of September, in Sentinel, sunrise is at 6:26 am and sunset at 6:18 pm MST.
Sunshine
The average sunshine in September is 9.7h.UV index
In September, the average daily maximum UV index is 7. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for average individuals.Note: In September, the maximum UV index of 7 transforms into these recommendations:
Inhibit overexposure. Warding off sun damage is of utmost importance. The Sun's UV radiation is at its strongest between the hours of 10 a.m. and 4 p.m. Minimize direct exposure to the sun during this period. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Sentinel, AZ
- Average high temperature in September: 96.3°F
The warmest month (with the highest average high temperature) is July (102.4°F).
The month with the lowest average high temperature is December (63.1°F).
- Average low temperature in September: 79.5°F
The month with the highest average low temperature is August (85.3°F).
The coldest month (with the lowest average low temperature) is December (47.7°F).
Average pressure in September
Sentinel, AZ
- Average pressure in September: 29.81"Hg
The month with the highest atmospheric pressure is January (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.76"Hg).
Average wind speed in September
Sentinel, AZ
- Average wind speed in September: 6.6mph
The windiest months (with the highest average wind speed) are May and June (8.3mph).
The calmest months (with the lowest average wind speed) are January and December (5.3mph).
Average humidity in September
Sentinel, AZ
- Average humidity in September: 31%
The month with the highest relative humidity is December (42%).
The month with the lowest relative humidity is June (17%).
Average rainfall in September
Sentinel, AZ
- Average rainfall in September: 0.83"
The wettest month (with the highest rainfall) is July (1.5").
The driest months (with the least rainfall) are April, May and June (0.08").
Average rainfall days in September
Sentinel, AZ
- Average rainfall days in September: 8.2 days
The month with the highest number of rainy days is July (12.9 days).
The month with the least rainy days is May (1.3 days).
Average daylight in September /
Average sunshine in September
Sentinel, 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 6min).
The month with the least sunshine is December (Average sunshine: 7h and 0min).
Average sunshine days in September
Sentinel, AZ
- Average sunshine days in September: 19.2 days
The month with the most sunshine days is May (29.2 days).
The month with the least sunshine days is July (13.4 days).
Average UV index in September
Sentinel, 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
Sentinel, AZ
- Average cloud cover in September: 11
The month with the most cloud cover is December (Cloud cover 19).
The month with the least cloud cover is June (Cloud cover 5).
Average visibility in September
Sentinel, 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).





