Desert Hot Springs weather in September

In September, Desert Hot Springs sees average daytime highs of 88°F and overnight lows near 65°F, with 0.2 in of rain across 1.1 wet days and about 12.2 hours of daylight. It is the 4th-warmest and 10th-wettest month of the year here.

Highs ease over the month, from about 91°F in the first days to 84°F by the end. The sky is clear or mostly clear about 87% 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 Desert Hot Springs's 2nd-clearest and 8th-windiest month. For the whole year in context, see Desert Hot Springs's year-round climate.

Daytime high
88°
4th warmest
Overnight low
65°
10th coldest
Rainfall
0.2 in
1.1 wet days
Daylight
12 h 12 min
5:34 AM – 5:47 PM
Cloud cover
15%
2nd clearest
Wind
5 mph
8th windiest
Solar energy
6.38 kWh/m²
Travel score
6.1
out of 10

Desert Hot Springs is city in Riverside County, California, United States.

Density
463/km²
people per km²
Founded
1963

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 91°F in the first days to 84°F by the end.

A typical September day in Desert Hot Springs reaches about 88°F in the afternoon and slips back to 65°F overnight — a 23°F spread between the day's warmth and the night's chill. On most days the high lands between 80°F and 94°F. Set against its neighbours, September runs about 6°F cooler than August and about 11°F warmer than October.

60°80°100°151015202530
Avg high (°F)Avg low (°F)
19269
29169
39168
49168
59168
69068
79067
89067
98967
108966
118966
128966
138865
148865
158865
168764
178764
188764
198763
208663
218663
228663
238562
248562
258562
268561
278461
288461
298360
308360

How September really feels in Desert Hot Springs

Once humidity and wind are folded in, September averages 8 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
8
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.

Desert Hot Springs weather by month

How September compares with the rest of the year at a glance. September is the 4th-warmest and 10th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan58° / 40°1.34.30.6105.2
Feb60° / 41°1.54.40.610.75.7
Mar66° / 45°0.73.20.311.77.4
Apr72° / 49°0.320.112.88.5
May80° / 56°0.11013.78.4
Jun89° / 64°0.00.3014.25.5
Jul94° / 70°0.21.30143.5
Aug94° / 70°0.21.5013.33.8
Sep88° / 65°0.21.1012.26.1
Oct77° / 55°0.31011.18.9
Nov66° / 45°0.41.60.110.27.7
Dec58° / 39°1.13.40.49.85.1

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 87% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 7% of September, with mostly cloudy or overcast conditions the remaining 6%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
1937
2937
3937
4946
5946
6946
7946
8946
9946
10946
11946
12955
13955
14955
15955
16955
17955
18955
19955
20955
21937
22937
23937
24937
25937
26937
27937
28928
29928
30937

Chance of precipitation in September

Any precipitation

Desert Hot Springs gets around 0.2 in of rain over 1.1 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 4% and peaks near 5% on the wettest days.

0%10%20%30%151015202530
Rain chance (%)
15
25
35
45
55
65
75
85
95
105
115
125
134
144
154
164
174
183
193
203
213
223
233
242
252
262
272
282
292
302

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 94% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)
18992
28992
38992
48992
59091
69091
79091
89181
99181
109271
119271
129361
139451
149541
159541
169631
179631
189721
199721
209721
219721
229721
239721
249721
259721
269811
279811
289811
299811
309811

Wind in September

Winds average 5 mph in September.

Across September, daily wind ranges from about 5 mph on the calmest days to 5 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
175calm
185calm
195calm
205calm
215calm
225calm
235calm
245calm
255calm
265calm
275calm
285calm
295calm
305calm

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 5:23 AM to 5:44 AM, and sunset from 6:08 PM to 5:26 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.75:236:08
212.75:246:07
312.75:256:05
412.65:266:04
512.65:266:02
612.65:276:01
712.55:286:00
812.55:285:58
912.55:295:57
1012.45:305:55
1112.45:315:54
1212.45:315:52
1312.35:325:51
1412.35:335:49
1512.25:335:48
1612.25:345:47
1712.25:355:45
1812.15:365:44
1912.15:365:42
2012.15:375:41
2112.05:385:39
2212.05:385:38
2312.05:395:36
2411.95:405:35
2511.95:415:34
2611.85:415:32
2711.85:425:31
2811.85:435:29
2911.75:445:28
3011.75:445:26

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 6.38 kWh/m².

For context, solar energy here swings from a low near 3.17 kWh/m² to a high of 8.6 kWh/m² in June across the year — September's 6.38 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
16.8Intense
26.7Intense
36.7Intense
46.7Intense
56.7Intense
66.6Intense
76.6Intense
86.6Intense
96.6Intense
106.6Intense
116.5Intense
126.5Intense
136.5Intense
146.5Intense
156.5Intense
166.4Intense
176.4Intense
186.4Intense
196.3Intense
206.3Intense
216.3Intense
226.2Intense
236.2Intense
246.1Intense
256.1Intense
266.0Intense
276.0Intense
286.0Bright
295.9Bright
305.9Bright
Planning a trip in September

Is September a good time to visit Desert Hot Springs?

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

6.1
Sightseeing
6th-best month of the year
8.7
Beach & pool
1st-best month of the year

September is a reasonable time to visit Desert Hot Springs for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Desert Hot Springs in September

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

In September, Desert Hot Springs sees daytime highs around 88°F and nights near 65°F. Pack light clothes and sun protection.

light clothessun protection

UV index in Desert Hot Springs 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 Desert Hot Springs peaks around July 11 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 17 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 11UV 11Dec 17UV 3
UV index (midday)Level
Jan4Moderate
Feb5Moderate
Mar5High
Apr8Very high
May9Very high
Jun11Extreme
Jul12Extreme
Aug11Extreme
Sep9Very high
Oct6High
Nov4Moderate
Dec3Moderate

Air quality in Desert Hot Springs 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 Desert Hot Springs is worst in September — around 20 µg/m³ PM2.5 (moderate), about 4.3× the cleanest month (December, 5 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodModerateGoodSep 1419 µg/m³Dec 155 µg/m³
PM2.5 (µg/m³)Level
Jan6Good
Feb7Good
Mar8Good
Apr8Good
May7Good
Jun14Moderate
Jul10Good
Aug11Good
Sep20Moderate
Oct6Good
Nov5Good
Dec5Good
Location & terrain

Where is Desert Hot Springs?

Desert Hot Springs sits at 34.0°N, 116.5°W, 1,076 ft above sea level, in United States. The nearest listed city is Palm Springs, 9.3 mi away.

Topography around Desert Hot Springs

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

Within 2 miles, the terrain around Desert Hot Springs has significant variations in elevation — a maximum elevation change of 1,450 ft around an average of 1,204 ft above sea level; within 10 miles, very significant variations in elevation — a maximum elevation change of 5,187 ft; within 50 miles, extreme variations in elevation — a maximum elevation change of 11,650 ft.

The land around Desert Hot Springs is covered by bare terrain (62%) and artificial surfaces (35%) within 2 miles, bare terrain (58%) and shrubs (30%) within 10 miles, and bare terrain (45%) and shrubs (28%) within 50 miles.

2 miles
1,450 ft
10 miles
5,187 ft
50 miles
11,650 ft
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Palm Springs 9.3 mi · Yucca Valley 11 mi · Cathedral City 13 mi · Rancho Mirage 16 mi · Palm Desert 18 mi · Banning 22 mi · Indio 24 mi · La Quinta 24 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 Desert Hot Springs (33.9617°, -116.5035°, elevation 1,076 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).