Temperature in Maricopa County in September

Daytime highs, nighttime lows and the warmest cities in Maricopa County, the United States of America this September.

Maricopa County, the United States of America, a region in the United States of America, typically experiences very hot weather in September, with maximum daytime temperatures around 38°C (100°F) and nighttime temperatures around 24°C (75°F) in Phoenix.

What is the temperature of the different cities in Maricopa County, the United States of America in September?

Curious about the September temperatures in the prime spots of Maricopa County? Navigate the map below and tap on a destination dot for more detailed stats.

Select a Month

Check the conditions for any month of the year.

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For a detailed overview over the year and the best time to visit Maricopa County, check out our Maricopa County's climate page.

See also: Maricopa County weather by month.

Best Places to Visit in Maricopa County in September

Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across Maricopa County.

Conditions Temperatures Precipitation
Avg daytime high -5°C (23°F) cold → 32°C (90°F) hot

Marker color shows the average daytime high temperature in September: blue is cold, red is hot.

See all September weather averages, cities and regions in Maricopa County

Maricopa County temperatures in September: frequently asked questions

How hot does it get in Maricopa County, the United States of America in September?

Expect daytime temperatures around 38°C (100°F) in Phoenix. That makes September a extremely high month for Maricopa County, the United States of America.

How cold does it get at night in Maricopa County, the United States of America in September?

Phoenix sees nighttime lows close to 24°C (75°F) in September.

How much sun does Maricopa County, the United States of America get in September?

Phoenix enjoys approximately 328 hours of sunshine, offering a mostly sunny climate that adds a pleasant and vibrant feel to the month.

Interested in more climate information?

We have much more information about the climate in Maricopa County.

Weather and climate has detailed information for every country in the world. Are you going to the United States of America? Get detailed historical weather averages for many cities in the United States of America.

Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.

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