September weather forecast
Buckeye, AZ

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Weather in September

September in Buckeye marks the beginning of a gradual cool-down. Welcoming signs of fall, the temperature thankfully dips down to a high of 96.4°F (35.8°C), lower than the summer peak. Daylight hours start to recede further, echoing the end of the extensive summer season. The gradual slide in temperature continues into October, making the weather more hospitable.

Temperature

September brings a slight decrease in the average high-temperature, shifting from a sweltering 102°F (38.9°C) in August to a still very hot 96.4°F (35.8°C). Throughout September, an average low-temperature of 78.1°F (25.6°C) is expected in Buckeye.

Humidity

In Buckeye, the average relative humidity in September is 30%.

Rainfall

The wettest months are August through October, with an average 1.14" (29mm) of rainfall.

Daylight

The average length of the day in September in Buckeye is 12h and 22min.
On the first day of the month, sunrise is at 6:05 am and sunset at 6:55 pm. On the last day of September, in Buckeye, Arizona, sunrise is at 6:24 am and sunset at 6:15 pm MST.

Sunshine

In Buckeye, the average sunshine in September is 9.7h.

UV index

The average daily maximum UV index in September is 7. A UV Index of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for the ordinary person.
Note: The UV index of 7 in September translates into these instructions:
Act on precautions and pay attention to sun safety recommendations. Avoidance of sunburn is obligatory. It's important to stay in the shade and limit exposure to the sun from 10 a.m. to 4 p.m., when UV radiation is most intense, although remember that shade structures may not provide full sun protection. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
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Frequently asked questions

How hot is it in Buckeye in September?

The average high-temperature, in September, in Buckeye, is 96.4°F (35.8°C), while the average low-temperature is 78.1°F (25.6°C).

What is the average humidity in September in Buckeye?

The average relative humidity in September in Buckeye is 30%.

What is the rainiest month in Buckeye?

The wettest months are August through October, with an average 1.14" (29mm) of rainfall.

How much does it rain in Buckeye in September?

In Buckeye, in September, it is raining for 6.4 days, with typically 1.14" (29mm) of accumulated precipitation.

How many hours of daylight does Buckeye have in September?

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

What time are sunrise and sunset in September in Buckeye?

In September, on the first day of the month, sunrise is at 6:05 am and sunset at 6:55 pm. On the last day of the month, in Buckeye, Arizona, sunrise is at 6:24 am and sunset at 6:15 pm MST.

How long on average sun shines in September in Buckeye?

The average sunshine duration in September in Buckeye, Arizona, is 9.7h.

What is the UV index reading in September in Buckeye?

The average daily maximum UV index in September in Buckeye is 7. A UV Index reading of 6 to 7 represents a high health threat 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
Buckeye, AZ

Average temperature in September - Buckeye, AZ
  • Average high temperature in September: 96.4°F

The warmest month (with the highest average high temperature) is July (102.7°F).
The month with the lowest average high temperature is December (62.6°F).

  • Average low temperature in September: 78.1°F

The month with the highest average low temperature is August (84.2°F).
The coldest month (with the lowest average low temperature) is December (46.8°F).

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Average pressure in September
Buckeye, AZ

Average pressure in September - Buckeye, AZ
  • Average pressure in September: 29.85"Hg

The month with the highest atmospheric pressure is January (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.79"Hg).

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Average wind speed in September
Buckeye, AZ

Average wind speed in September - Buckeye, AZ
  • Average wind speed in September: 5.3mph

The windiest months (with the highest average wind speed) are April and May (6.8mph).
The calmest month (with the lowest average wind speed) is December (4.6mph).

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Average humidity in September
Buckeye, AZ

Average humidity in September - Buckeye, AZ
  • Average humidity in September: 30%

The month with the highest relative humidity is December (43%).
The month with the lowest relative humidity is June (17%).

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Average rainfall in September
Buckeye, AZ

Average rainfall in September - Buckeye, AZ
  • Average rainfall in September: 1.14"

The wettest months (with the highest rainfall) are August, September and October (1.14").
The driest month (with the least rainfall) is June (0.08").

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Average rainfall days in September
Buckeye, AZ

Average rainfall days in September - Buckeye, AZ
  • Average rainfall days in September: 6.4 days

The month with the highest number of rainy days is July (9.8 days).
The month with the least rainy days is June (0.9 days).

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

Average daylight in September / Average sunshine in September - Buckeye, 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
Buckeye, AZ

Average sunshine days in September - Buckeye, AZ
  • Average sunshine days in September: 20.9 days

The month with the most sunshine days is May (28.7 days).
The month with the least sunshine days is August (18 days).

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Average UV index in September
Buckeye, AZ

Average UV index in September - Buckeye, 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
Buckeye, AZ

Average cloud cover in September - Buckeye, 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).

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Average visibility in September
Buckeye, AZ

Average visibility in September - Buckeye, 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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Buckeye, Arizona, USA

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