September weather forecast
El Mirage, AZ

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Weather in September

September brings a moderate dip in high temperatures, signaling the onset of Autumn. The month witnesses a slight drop in rainfall alongside a reduction in sunlight hours. The UV index drops down to 7, marking the gradual receding of harsh summer conditions. The overall temperature spectrum from 77°F (25°C) up to 95°F (35°C) is a clear sign of weather transitioning from summer towards fall. This period lends itself perfectly to those who wish to avoid extreme weather conditions, providing a perfect balance between the exiting summer and the upcoming fall.

Temperature

The arrival of September correlates with a minor temperature reduction, down from August's torrid 100.9°F (38.3°C) to a still fiery hot 95°F (35°C). The low-temperature averages to a warm 77°F (25°C) during the nights of September.

Humidity

In September, the average relative humidity is 30%.

Rainfall

In September, the rain falls for 7.1 days. Throughout September, 1.18" (30mm) of precipitation is accumulated. Throughout the year, in El Mirage, there are 60.7 rainfall days, and 8.62" (219mm) of precipitation is accumulated.

Daylight

In El Mirage, 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 6:54 pm. On the last day of September, in El Mirage, Arizona, sunrise is at 6:23 am and sunset at 6:14 pm MST.

Sunshine

In September, the average sunshine is 9.7h.

UV index

The average daily maximum UV index in September is 7. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for average individuals.
Note: In September, a daily maximum UV index of 7 leads to the following instructions:
Endorse precautions and be consistent with sun safety guidelines. Preventing sunburn is paramount. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.

Frequently asked questions

How hot does it get in El Mirage in September?

An average high-temperature, in September, in El Mirage, is 95°F (35°C) and the average low-temperature is 77°F (25°C).

What is the average humidity in September in El Mirage?

In September, the average relative humidity is 30%.

How many days does it rain in September in El Mirage?

In September, the rain falls for 7.1 days. Throughout September, 1.18" (30mm) of precipitation is accumulated.

How many hours of daylight does El Mirage have in September?

In El Mirage, the average day length in September is 12h and 22min.

When is the sunrise / sunset in September in El Mirage?

In September, on the first day of the month, sunrise is at 6:03 am and sunset at 6:54 pm. On the last day of the month, in El Mirage, sunrise is at 6:23 am and sunset at 6:14 pm MST.

How many hours of sunshine does El Mirage have in September?

In El Mirage, Arizona, the average sunshine duration in September is 9.7h.

How high is the UV index in September in El Mirage?

The average daily maximum UV index in September is 7. A UV Index reading of 6 to 7 represents a high health risk from unprotected exposure to 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
El Mirage, AZ

Average temperature in September - El Mirage, 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
El Mirage, AZ

Average pressure in September - El Mirage, 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
El Mirage, AZ

Average wind speed in September - El Mirage, 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
El Mirage, AZ

Average humidity in September - El Mirage, 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
El Mirage, AZ

Average rainfall in September - El Mirage, 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
El Mirage, AZ

Average rainfall days in September - El Mirage, 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
El Mirage, AZ

Average daylight in September / Average sunshine in September - El Mirage, 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).

Average sunshine days in September
El Mirage, AZ

Average sunshine days in September - El Mirage, 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
El Mirage, AZ

Average UV index in September - El Mirage, 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
El Mirage, AZ

Average cloud cover in September - El Mirage, 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
El Mirage, AZ

Average visibility in September - El Mirage, 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).

El Mirage, Arizona, USA

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