September weather forecastMaricopa, AZ
September
Weather in September
September observes a gentle break from the heat with gradual cooling, a precursor to the autumn transition in Maricopa. The month preserves its fair share of sunlit hours despite losing some daylight, while the cloud coverage remains significantly constant. September notes a dramatic decrease in rainfall, bringing back the predominance of drier days. As the temperature moderates between 77.7°F (25.4°C) to 95.9°F (35.5°C), there's a perceptible shift in how the wind feels. Moving towards the end of September, residents begin to prepare for the fresh, cooler days of October.Temperature
With the commencement of September, Maricopa records a moderate temperature decline, with the average high easing from August's torrid 101.7°F (38.7°C) to a still fiery hot 95.9°F (35.5°C). During the month of September, an average low-temperature of 77.7°F (25.4°C) is recorded.Humidity
In September, the average relative humidity is 32%.Rainfall
In Maricopa, in September, during 7.4 rainfall days, 0.94" (24mm) of precipitation is typically accumulated. Throughout the year, there are 57.4 rainfall days, and 7.48" (190mm) 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 6:52 pm. On the last day of September, sunrise is at 6:22 am and sunset at 6:13 pm MST.
Sunshine
In Maricopa, the average sunshine in September is 9.7h.UV index
In Maricopa, the average daily maximum UV index in September is 7. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: In September, the average maximum UV index of 7 translates into the following recommendations:
Apply measures and align with sun safety principles. Safeguarding against skin and eye injury is pivotal. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full sun protection. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Maricopa, AZ
- Average high temperature in September: 95.9°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 (62.8°F).
- Average low temperature in September: 77.7°F
The month with the highest average low temperature is August (83.8°F).
The coldest month (with the lowest average low temperature) is January (46.4°F).
Average pressure in September
Maricopa, 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 (29.81"Hg).
Average wind speed in September
Maricopa, AZ
- Average wind speed in September: 5.1mph
The windiest months (with the highest average wind speed) are April and May (6.5mph).
The calmest month (with the lowest average wind speed) is December (4.3mph).
Average humidity in September
Maricopa, AZ
- Average humidity in September: 32%
The months with the highest relative humidity are January and December (44%).
The month with the lowest relative humidity is June (17%).
Average rainfall in September
Maricopa, AZ
- Average rainfall in September: 0.94"
The wettest month (with the highest rainfall) is July (1.02").
The driest months (with the least rainfall) are May and June (0.08").
Average rainfall days in September
Maricopa, AZ
- Average rainfall days in September: 7.4 days
The month with the highest number of rainy days is July (10.5 days).
The month with the least rainy days is June (1.2 days).
Average daylight in September /
Average sunshine in September
Maricopa, 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
Maricopa, AZ
- Average sunshine days in September: 20.1 days
The month with the most sunshine days is May (28.8 days).
The month with the least sunshine days is July (16.4 days).
Average UV index in September
Maricopa, AZ
- Average UV index in September: 7
The months with the highest UV index are May, June, July and August (UV index 8).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in September
Maricopa, AZ
- Average cloud cover in September: 11
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
Maricopa, 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).
