Anthem weather in September

In September, Anthem sees average daytime highs of 96°F and overnight lows near 74°F, with 0.8 in of rain across 3.1 wet days and about 12.2 hours of daylight. It is the 4th-warmest and 7th-wettest month of the year here.

Highs ease over the month, from about 99°F in the first days to 93°F by the end. The sky is clear or mostly clear about 81% of the time in September, and the air most often feels dry.

Daylight stretches from about 12 h 42 min at the start of September to 11 h 42 min by month's end. Set against the rest of the year, September is Anthem's 3rd-clearest and 10th-windiest month. For the whole year in context, see Anthem's year-round climate.

Daytime high
96°
4th warmest
Overnight low
74°
9th coldest
Rainfall
0.8 in
3.1 wet days
Daylight
12 h 12 min
6:17 AM – 6:29 PM
Cloud cover
21%
3rd clearest
Wind
5 mph
10th windiest
Solar energy
6.08 kWh/m²
Travel score
2.7
out of 10

Anthem is census designated place in Maricopa County, Arizona, United States.

Density
1,049/km²
people per km²
Founded
1998

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 99°F in the first days to 93°F by the end.

A typical September day in Anthem reaches about 96°F in the afternoon and slips back to 74°F overnight — a 22°F spread between the day's warmth and the night's chill. On most days the high lands between 88°F and 103°F. Set against its neighbours, September runs about 5°F cooler than August and about 11°F warmer than October.

60°80°100°151015202530
Avg high (°F)Avg low (°F)
110079
210078
39978
49978
59978
69977
79877
89877
99876
109876
119776
129775
139775
149774
159674
169674
179674
189673
199673
209573
219572
229572
239571
249471
259471
269470
279470
289370
299369
309269

How September really feels in Anthem

Once humidity and wind are folded in, September averages 30 days that feel above 90°F and 0 that feel at or below 32°F — the comfort signal a plain temperature reading hides.

Days feeling ≥ 90°F
30
heat index over the day's high
Days feeling ≤ 32°F
0
wind chill below the day's low

The story in September is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Anthem weather by month

How September compares with the rest of the year at a glance. September is the 4th-warmest and 7th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysDaylight (hours)Travel score
Jan65° / 43°1.43.6107.2
Feb68° / 46°1.64.410.77.4
Mar74° / 51°1.13.111.78.3
Apr82° / 57°0.31.312.87.8
May91° / 66°0.10.713.74.8
Jun100° / 75°0.10.314.21.4
Jul103° / 82°0.73140.3
Aug101° / 81°0.93.913.30.8
Sep96° / 74°0.83.112.22.7
Oct86° / 62°0.72.111.16.6
Nov73° / 51°0.82.210.28.5
Dec64° / 43°1.23.49.86.9

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 81% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 9% of September, with mostly cloudy or overcast conditions the remaining 10%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
18713
28713
38812
48812
58812
68812
78911
88911
99010
10919
11919
12919
13919
14928
15928
16928
17928
18928
19928
20928
21928
22928
23928
24928
25919
26919
279010
289010
299010
309010

Chance of precipitation in September

Any precipitation

Anthem gets around 0.8 in of rain over 3.1 wet days in September. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 10% and peaks near 14% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%151015202530
Rain chance (%)
114
214
314
414
514
614
714
814
914
1013
1113
1213
1312
1412
1511
1610
1710
189
199
208
218
227
237
247
256
266
276
286
296
306

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

Most of September feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, September lands in the dry band about 65% of days. Sticky, muggy-or-worse air turns up on roughly 7% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1412421121
2422321121
3442320111
4452320111
5472220101
6482219101
750211991
851211891
953201881
1055201780
1158191670
1260181570
1362171460
1464171360
1565161360
1668151250
1770141150
1871141050
197313950
207612840
217711840
227811740
238010640
24819640
25839530
26848530
27848530
28848530
29877420
30877420

Wind in September

Winds average 5 mph in September.

Across September, daily wind ranges from about 5 mph on the calmest days to 6 mph at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (mph)Feels
15calm
25calm
35calm
45calm
55calm
65calm
75calm
85calm
95calm
105calm
115calm
125calm
135calm
145calm
155calm
165calm
176calm
186calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 42 min at the start of September to 11 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 60 minutes over September. Sunrise moves from 6:06 AM to 6:27 AM, and sunset from 6:50 PM to 6:09 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.76:066:50
212.76:076:49
312.76:086:48
412.66:086:46
512.66:096:45
612.66:106:44
712.56:106:42
812.56:116:41
912.56:126:39
1012.46:126:38
1112.46:136:36
1212.46:146:35
1312.36:156:33
1412.36:156:32
1512.26:166:31
1612.26:176:29
1712.26:176:28
1812.16:186:26
1912.16:196:25
2012.16:206:23
2112.06:206:22
2212.06:216:20
2312.06:226:19
2411.96:226:18
2511.96:236:16
2611.86:246:15
2711.86:256:13
2811.86:256:12
2911.76:266:10
3011.76:276:09

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 6.08 kWh/m².

For context, solar energy here swings from a low near 3.12 kWh/m² to a high of 8.48 kWh/m² in June across the year — September's 6.08 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
16.4Intense
26.4Intense
36.4Intense
46.3Intense
56.3Intense
66.3Intense
76.3Intense
86.2Intense
96.2Intense
106.2Intense
116.2Intense
126.2Intense
136.1Intense
146.1Intense
156.1Intense
166.1Intense
176.0Intense
186.0Intense
196.0Intense
206.0Bright
216.0Bright
225.9Bright
235.9Bright
245.9Bright
255.8Bright
265.8Bright
275.8Bright
285.7Bright
295.7Bright
305.7Bright
Planning a trip in September

Is September a good time to visit Anthem?

Our two travel scores rate September for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

2.7
Sightseeing
9th-best month of the year
6.2
Beach & pool
6th-best month of the year

September is a weaker month for outdoor sightseeing in Anthem. The water and warmth also suit a beach or pool day.

What to pack for Anthem in September

From September's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In September, Anthem sees daytime highs around 96°F and nights near 74°F. Pack light clothes and sun protection. About 3 days see rain.

light clothessun protection

UV index in Anthem in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 9 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Anthem peaks around July 13 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 20 at about 3 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 11 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highExtremeVery highHighModerateJul 13UV 11Dec 20UV 3
UV index (midday)Level
Jan3Moderate
Feb5Moderate
Mar5Moderate
Apr7High
May9Very high
Jun11Extreme
Jul11Extreme
Aug11Extreme
Sep9Very high
Oct6High
Nov4Moderate
Dec3Moderate

Air quality in Anthem in September

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where September falls, not just the annual average.

Air quality in Anthem is worst in June — around 17 µg/m³ PM2.5 (moderate), about 1.9× the cleanest month (December, 9 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodGoodJun 1917 µg/m³Dec 149 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb11Good
Mar11Good
Apr12Moderate
May12Moderate
Jun17Moderate
Jul15Moderate
Aug12Good
Sep11Good
Oct13Moderate
Nov10Good
Dec9Good
Location & terrain

Where is Anthem?

Anthem sits at 33.9°N, 112.1°W, 1,864 ft above sea level, in United States. The nearest listed city is Deer Valley, 12 mi away.

Topography around Anthem

How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Anthem.

Within 2 miles, the terrain around Anthem has only modest variations in elevation — a maximum elevation change of 686 ft around an average of 1,877 ft above sea level; within 10 miles, large variations in elevation — a maximum elevation change of 3,091 ft; within 50 miles, very significant variations in elevation — a maximum elevation change of 7,142 ft.

The land around Anthem is covered by shrubs (51%) and artificial surfaces (29%) within 2 miles, shrubs (73%) within 10 miles, and shrubs (54%) within 50 miles.

2 miles
686 ft
10 miles
3,091 ft
50 miles
7,142 ft
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Deer Valley 12 mi · Sun City West 18 mi · Surprise 19 mi · Sun City 20 mi · El Mirage 21 mi · Peoria 21 mi · Glendale 23 mi · Maryvale 25 mi

United States travel facts

Power plugs
Type A / B
120 V · 60 Hz
Prices
≈ 100% of US
price level, 2025
GDP per capita
$90,027
2025
Happiness
6.8 / 10
World Happiness, 2025
Safe drinking water
98%
of population, 2024
Homicide rate
5.8
per 100k, 2023
Road deaths
12.7
per 100k/yr, 2019
Income group
High
World Bank
Religion
Protestant 47%unaffiliated 23%Roman Catholic 21%Jewish 2%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Anthem (33.8673°, -112.1468°, elevation 1,864 ft), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).