Arizona weather in September 2025

The temperatures in Arizona during September are extremely high, between 28°C and hot as 37°C, drinking water regularly is advisable.

You can expect about 3 to 8 days of rain in Arizona during the month of September. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.

Our weather forecast can give you a great sense of what weather to expect in Arizona in September 2025.

If you’re planning to visit Arizona in the near future, we highly recommend that you review the 14 day weather forecast for Arizona before you arrive.

Temperatures

37° / 28°

Rainy Days

Snowy Days

Dry Days

Rainfall

Sun Hours

11.8

Hrs

Sun	Mon	Tue	Wed	Thu	Fri	Sat
	1 38° /29°	2 39° /29°	3 41° /31°	4 42° /33°	5 42° /32°	6 42° /31°
7 42° /32°	8 40° /30°	9 38° /28°	10 39° /29°	11 39° /29°	12 40° /31°	13 40° /29°
14 39° /29°	15 38° /29°	16 39° /28°	17 38° /27°	18 38° /27°	19 38° /27°	20 36° /26°
21 35° /26°	22 37° /26°	23 38° /27°	24 37° /26°	25 39° /27°	26 37° /27°	27 38° /27°
28 38° /27°	29 37° /26°	30 37° /26°

Explore the weather in Arizona in other months

Arizona annual weather

Month	Temperatures	Rainy Days	Dry Days	Rainfall	Weather	More details
January	19° / 9°	1	30	34 mm	Good	Arizona in January
February	21° / 11°	2	26	31 mm	Good	Arizona in February
March	25° / 14°	1	30	24 mm	Perfect	Arizona in March
April	29° / 18°	1	29	9 mm	Good	Arizona in April
May	33° / 21°	0	31	4 mm	Good	Arizona in May
June	39° / 27°	0	30	6 mm	Bad	Arizona in June
July	39° / 30°	4	27	64 mm	Bad	Arizona in July
August	39° / 30°	3	28	54 mm	Bad	Arizona in August
September	37° / 28°	3	27	54 mm	Ok	Arizona in September
October	31° / 21°	2	29	27 mm	Good	Arizona in October
November	25° / 15°	1	29	23 mm	Perfect	Arizona in November
December	18° / 10°	2	29	37 mm	Good	Arizona in December