September weather forecast
Maricopa, AZ

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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 September's onset, the weather reveals a slight temperature decrease, transitioning from a torrid 101.7°F (38.7°C) in August to a still very hot 95.9°F (35.5°C). During September, Maricopa witnesses a consistent average low-temperature of 77.7°F (25.4°C).

Humidity

The average relative humidity in September in Maricopa is 32%.

Rainfall

In Maricopa, during September, the rain falls for 7.4 days and regularly aggregates up to 0.94" (24mm) of precipitation. Throughout the year, there are 57.4 rainfall days, and 7.48" (190mm) of precipitation is accumulated.

Daylight

In Maricopa, the average length of the day in September 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

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 the ordinary person.
Note: In September, a daily maximum UV index of 7 leads to the following instructions:
Stick with precautions and abide by sun safety procedures. Evading sunburn is essential. The time between 10 a.m. and 4 p.m. is when UV radiation is at its peak. Limit exposure to direct sunlight during these hours. Boost your sun resistance with garments that are densely woven yet spacious.
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Frequently asked questions

How hot does it get in Maricopa in September?

In Maricopa, in September, the average high-temperature is 95.9°F (35.5°C), and the average low-temperature is 77.7°F (25.4°C).

What is the average humidity in September in Maricopa?

In Maricopa, the average relative humidity in September is 32%.

How much does it rain in Maricopa in September?

In Maricopa, during September, the rain falls for 7.4 days and regularly aggregates up to 0.94" (24mm) of precipitation.

How many hours of daylight does Maricopa have in September?

The average day length in September in Maricopa, Arizona, is 12h and 22min.

When are sunrise and sunset in September in Maricopa?

On the first day of September in Maricopa, Arizona, sunrise is at 6:03 am and sunset at 6:52 pm. On the last day of the month, sunrise is at 6:22 am and sunset at 6:13 pm MST.

How long on average sun shines in September in Maricopa?

The average sunshine duration in September in Maricopa is 9.7h.

What is the UV index intensity in September in Maricopa?

In September, the average daily maximum UV index in Maricopa, Arizona, is 7. A UV Index of 6 to 7 symbolizes a high health threat from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Maricopa, AZ

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).

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Average pressure in September
Maricopa, AZ

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).

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Average wind speed in September
Maricopa, AZ

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).

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Average humidity in September
Maricopa, AZ

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%).

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Average rainfall in September
Maricopa, AZ

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").

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Average rainfall days in September
Maricopa, AZ

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).

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Average daylight in September /
Average sunshine in September
Maricopa, AZ

Average daylight in September / Average sunshine in September - Maricopa, AZ
  • Average daylight in September: 12h and 2min

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 4min

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).

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Average sunshine days in September
Maricopa, AZ

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).

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Average UV index in September
Maricopa, AZ

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).

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Average cloud cover in September
Maricopa, AZ

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).

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Average visibility in September
Maricopa, AZ

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).

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Maricopa, Arizona, USA

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