Ridgecrest weather in September

In September, Ridgecrest sees average daytime highs of 88°F and overnight lows near 63°F, with 0.1 in of rain across 0.5 wet days and about 12.2 hours of daylight. It is the 4th-warmest and 8th-wettest month of the year here.

Highs ease over the month, from about 92°F in the first days to 84°F by the end. The sky is clear or mostly clear about 88% of the time in September, and the air most often feels dry.

Daylight stretches from about 12 h 48 min at the start of September to 11 h 42 min by month's end. Set against the rest of the year, September is Ridgecrest's 1st-clearest and 7th-windiest month. For the whole year in context, see Ridgecrest's year-round climate.

Daytime high: 88°; 4th warmest
Overnight low: 63°; 9th coldest
Rainfall: 0.1 in; 0.5 wet days
Daylight: 12 h 12 min; 5:38 AM – 5:52 PM
Cloud cover: 13%; 1st clearest
Wind: 5 mph; 7th windiest
Solar energy: 6.48 kWh/m²
Travel score: 6.0; out of 10

Ridgecrest is city in Kern County, California, United States.

Density: 519/km²; people per km²
Founded: 1963

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

← August Ridgecrest year-round climate October →Best places to visit in September

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 92°F in the first days to 84°F by the end.

A typical September day in Ridgecrest reaches about 88°F in the afternoon and slips back to 63°F overnight — a 26°F spread between the day's warmth and the night's chill. On most days the high lands between 79°F and 95°F. Set against its neighbours, September runs about 7°F cooler than August and about 12°F warmer than October.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Avg high (°F)	93	93	92	92	92	91	91	91	90	90	90	89	89	89	88	88	88	87	87	87	86	86	86	85	85	85	84	84	83	83
Avg low (°F)	66	66	66	66	65	65	65	65	64	64	64	64	63	63	63	62	62	62	62	61	61	61	61	60	60	60	59	59	59	58

	Avg high (°F)	Avg low (°F)
1	93	66
2	93	66
3	92	66
4	92	66
5	92	65
6	91	65
7	91	65
8	91	65
9	90	64
10	90	64
11	90	64
12	89	64
13	89	63
14	89	63
15	88	63
16	88	62
17	88	62
18	87	62
19	87	62
20	87	61
21	86	61
22	86	61
23	86	61
24	85	60
25	85	60
26	85	60
27	84	59
28	84	59
29	83	59
30	83	58

How September really feels in Ridgecrest

Once humidity and wind are folded in, September averages 11 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

heat index over the day's high

Days feeling ≤ 32°F

wind chill below the day's low

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

Ridgecrest weather by month

How September compares with the rest of the year at a glance. September is the 4th-warmest and 8th-wettest month here — the current month is highlighted below.

Month	High / Low (°F)	Rainfall (inches)	Wet days	Snow days	Daylight (hours)	Travel score
Jan	56° / 38°	1.2	4.2	0.8	9.9	4.5
Feb	59° / 40°	1.3	4.3	0.6	10.7	5.5
Mar	66° / 44°	0.7	3.1	0.4	11.7	7.3
Apr	72° / 48°	0.3	1.4	0	12.9	8.6
May	81° / 55°	0.1	0.6	0	13.9	8.3
Jun	91° / 63°	0.0	0.3	0	14.4	5.1
Jul	96° / 69°	0.1	0.8	0	14.2	2.8
Aug	96° / 68°	0.1	0.5	0	13.3	3.2
Sep	88° / 63°	0.1	0.5	0	12.2	6.0
Oct	76° / 53°	0.3	1.2	0	11.1	8.9
Nov	64° / 44°	0.4	1.8	0.2	10.1	7.1
Dec	55° / 38°	0.9	3.1	0.5	9.6	4.3

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 88% of the time in September, the clearest month of the year.

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

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Clearer (%)	95	94	94	94	94	94	94	95	95	95	95	95	95	95	95	95	95	95	95	95	95	94	94	94	94	94	93	93	93	93
Cloudier (%)	5	6	6	6	6	6	6	5	5	5	5	5	5	5	5	5	5	5	5	5	5	6	6	6	6	6	7	7	7	7

	Clearer (%)	Cloudier (%)
1	95	5
2	94	6
3	94	6
4	94	6
5	94	6
6	94	6
7	94	6
8	95	5
9	95	5
10	95	5
11	95	5
12	95	5
13	95	5
14	95	5
15	95	5
16	95	5
17	95	5
18	95	5
19	95	5
20	95	5
21	95	5
22	94	6
23	94	6
24	94	6
25	94	6
26	94	6
27	93	7
28	93	7
29	93	7
30	93	7

Chance of precipitation in September

Any precipitation

Ridgecrest gets around 0.1 in of rain over 0.5 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 2% and peaks near 2% on the wettest days.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Rain chance (%)	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2

	Rain chance (%)
1	2
2	2
3	2
4	2
5	2
6	2
7	2
8	2
9	2
10	2
11	2
12	2
13	2
14	2
15	2
16	2
17	2
18	2
19	2
20	2
21	2
22	2
23	2
24	2
25	2
26	2
27	2
28	2
29	2
30	2

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 98% of days. It rarely turns muggy — the humid and sticky bands barely register.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Dry (%)	97	97	97	97	97	97	97	97	98	98	98	99	99	99	99	99	100	100	100	100	100	100	100	100	100	100	100	100	100	100
Comfortable (%)	2	2	2	2	2	2	2	2	1	1	1	1	1	1	1	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0
Humid (%)	1	1	1	1	1	1	1	1	1	1	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0

	Dry (%)	Comfortable (%)	Humid (%)
1	97	2	1
2	97	2	1
3	97	2	1
4	97	2	1
5	97	2	1
6	97	2	1
7	97	2	1
8	97	2	1
9	98	1	1
10	98	1	1
11	98	1	1
12	99	1	0
13	99	1	0
14	99	1	0
15	99	1	0
16	99	1	0
17	100	0	0
18	100	0	0
19	100	0	0
20	100	0	0
21	100	0	0
22	100	0	0
23	100	0	0
24	100	0	0
25	100	0	0
26	100	0	0
27	100	0	0
28	100	0	0
29	100	0	0
30	100	0	0

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.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Wind speed (mph)	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5
Feels	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm

	Wind speed (mph)	Feels
1	6	calm
2	6	calm
3	6	calm
4	6	calm
5	6	calm
6	6	calm
7	6	calm
8	6	calm
9	6	calm
10	6	calm
11	6	calm
12	6	calm
13	6	calm
14	6	calm
15	6	calm
16	5	calm
17	5	calm
18	5	calm
19	5	calm
20	5	calm
21	5	calm
22	5	calm
23	5	calm
24	5	calm
25	5	calm
26	5	calm
27	5	calm
28	5	calm
29	5	calm
30	5	calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 48 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 66 minutes over September. Sunrise moves from 5:27 AM to 5:50 AM, and sunset from 6:14 PM to 5:30 PM.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Daylight (h)	12.8	12.8	12.7	12.7	12.6	12.6	12.6	12.5	12.5	12.5	12.4	12.4	12.3	12.3	12.3	12.2	12.2	12.1	12.1	12.1	12.0	12.0	12.0	11.9	11.9	11.8	11.8	11.8	11.7	11.7
Sunrise (AM)	5:27	5:27	5:28	5:29	5:30	5:31	5:31	5:32	5:33	5:34	5:34	5:35	5:36	5:37	5:38	5:38	5:39	5:40	5:41	5:41	5:42	5:43	5:44	5:45	5:45	5:46	5:47	5:48	5:49	5:50
Sunset (PM)	6:14	6:13	6:11	6:10	6:08	6:07	6:05	6:04	6:02	6:01	5:59	5:58	5:56	5:55	5:53	5:52	5:50	5:49	5:47	5:46	5:44	5:42	5:41	5:39	5:38	5:36	5:35	5:33	5:32	5:30

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	12.8	5:27	6:14
2	12.8	5:27	6:13
3	12.7	5:28	6:11
4	12.7	5:29	6:10
5	12.6	5:30	6:08
6	12.6	5:31	6:07
7	12.6	5:31	6:05
8	12.5	5:32	6:04
9	12.5	5:33	6:02
10	12.5	5:34	6:01
11	12.4	5:34	5:59
12	12.4	5:35	5:58
13	12.3	5:36	5:56
14	12.3	5:37	5:55
15	12.3	5:38	5:53
16	12.2	5:38	5:52
17	12.2	5:39	5:50
18	12.1	5:40	5:49
19	12.1	5:41	5:47
20	12.1	5:41	5:46
21	12.0	5:42	5:44
22	12.0	5:43	5:42
23	12.0	5:44	5:41
24	11.9	5:45	5:39
25	11.9	5:45	5:38
26	11.8	5:46	5:36
27	11.8	5:47	5:35
28	11.8	5:48	5:33
29	11.7	5:49	5:32
30	11.7	5:50	5:30

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 6.48 kWh/m².

For context, solar energy here swings from a low near 3.03 kWh/m² to a high of 8.66 kWh/m² in June across the year — September's 6.48 kWh/m² falls in the middle.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Solar energy (kWh/m²)	7.0	7.0	7.0	6.9	6.9	6.9	6.8	6.8	6.8	6.7	6.7	6.7	6.6	6.6	6.5	6.5	6.5	6.4	6.4	6.3	6.3	6.2	6.2	6.1	6.1	6.0	6.0	5.9	5.9	5.8
Level	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Bright	Bright	Bright	Bright

	Solar energy (kWh/m²)	Level
1	7.0	Intense
2	7.0	Intense
3	7.0	Intense
4	6.9	Intense
5	6.9	Intense
6	6.9	Intense
7	6.8	Intense
8	6.8	Intense
9	6.8	Intense
10	6.7	Intense
11	6.7	Intense
12	6.7	Intense
13	6.6	Intense
14	6.6	Intense
15	6.5	Intense
16	6.5	Intense
17	6.5	Intense
18	6.4	Intense
19	6.4	Intense
20	6.3	Intense
21	6.3	Intense
22	6.2	Intense
23	6.2	Intense
24	6.1	Intense
25	6.1	Intense
26	6.0	Intense
27	6.0	Bright
28	5.9	Bright
29	5.9	Bright
30	5.8	Bright

Planning a trip in September

Is September a good time to visit Ridgecrest?

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

6.0

Sightseeing

6th-best month of the year

8.7

Beach & pool

1st-best month of the year

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

What to pack for Ridgecrest in September

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

In September, Ridgecrest sees daytime highs around 88°F and nights near 63°F. Pack light clothes and sun protection.

light clothessun protection

UV index in Ridgecrest in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 8 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Ridgecrest peaks around June 21 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.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
UV index (midday)	3	4	5	7	8	11	11	11	8	6	3	3
Level	Moderate	Moderate	High	Very high	Very high	Extreme	Extreme	Extreme	Very high	High	Moderate	Moderate

	UV index (midday)	Level
Jan	3	Moderate
Feb	4	Moderate
Mar	5	High
Apr	7	Very high
May	8	Very high
Jun	11	Extreme
Jul	11	Extreme
Aug	11	Extreme
Sep	8	Very high
Oct	6	High
Nov	3	Moderate
Dec	3	Moderate

Air quality in Ridgecrest 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 Ridgecrest is worst in August — around 20 µg/m³ PM2.5 (moderate), about 3.8× the cleanest month (December, 5 µg/m³).

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

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
PM2.5 (µg/m³)	6	7	9	9	8	10	14	20	19	9	6	5
Level	Good	Good	Good	Good	Good	Good	Moderate	Moderate	Moderate	Good	Good	Good

	PM2.5 (µg/m³)	Level
Jan	6	Good
Feb	7	Good
Mar	9	Good
Apr	9	Good
May	8	Good
Jun	10	Good
Jul	14	Moderate
Aug	20	Moderate
Sep	19	Moderate
Oct	9	Good
Nov	6	Good
Dec	5	Good

Location & terrain

Where is Ridgecrest?

Ridgecrest sits at 35.6°N, 117.7°W, 2,290 ft above sea level, in United States. The nearest listed city is Rosamond, 59 mi away.

Topography around Ridgecrest

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

Within 2 miles, the terrain around Ridgecrest has only modest variations in elevation — a maximum elevation change of 157 ft around an average of 2,303 ft above sea level; within 10 miles, large variations in elevation — a maximum elevation change of 2,516 ft; within 50 miles, extreme variations in elevation — a maximum elevation change of 10,167 ft.

The land around Ridgecrest is covered by bare terrain (49%) and artificial surfaces (45%) within 2 miles, bare terrain (80%) within 10 miles, and bare terrain (51%) and grassland (26%) within 50 miles.

2 miles

157 ft

bare terrain 49%

10 miles

2,516 ft

bare terrain 80%

50 miles

10,167 ft

bare terrain 51%

treesshrubsgrasslandartificial surfacesbare terrain

← August Ridgecrest year-round climate October →Best places to visit in September

September weather nearby: Rosamond 59 mi · Barstow 62 mi · Barstow Heights 63 mi · Lancaster 69 mi · Arvin 71 mi · Adelanto 73 mi · Lamont 75 mi · Palmdale 76 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

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 Ridgecrest (35.6225°, -117.6709°, elevation 2,290 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).

	Avg high (°F)	Avg low (°F)
1	93	66
2	93	66
3	92	66
4	92	66
5	92	65
6	91	65
7	91	65
8	91	65
9	90	64
10	90	64
11	90	64
12	89	64
13	89	63
14	89	63
15	88	63
16	88	62
17	88	62
18	87	62
19	87	62
20	87	61
21	86	61
22	86	61
23	86	61
24	85	60
25	85	60
26	85	60
27	84	59
28	84	59
29	83	59
30	83	58

	Clearer (%)	Cloudier (%)
1	95	5
2	94	6
3	94	6
4	94	6
5	94	6
6	94	6
7	94	6
8	95	5
9	95	5
10	95	5
11	95	5
12	95	5
13	95	5
14	95	5
15	95	5
16	95	5
17	95	5
18	95	5
19	95	5
20	95	5
21	95	5
22	94	6
23	94	6
24	94	6
25	94	6
26	94	6
27	93	7
28	93	7
29	93	7
30	93	7

	Rain chance (%)
1	2
2	2
3	2
4	2
5	2
6	2
7	2
8	2
9	2
10	2
11	2
12	2
13	2
14	2
15	2
16	2
17	2
18	2
19	2
20	2
21	2
22	2
23	2
24	2
25	2
26	2
27	2
28	2
29	2
30	2

	Dry (%)	Comfortable (%)	Humid (%)
1	97	2	1
2	97	2	1
3	97	2	1
4	97	2	1
5	97	2	1
6	97	2	1
7	97	2	1
8	97	2	1
9	98	1	1
10	98	1	1
11	98	1	1
12	99	1	0
13	99	1	0
14	99	1	0
15	99	1	0
16	99	1	0
17	100	0	0
18	100	0	0
19	100	0	0
20	100	0	0
21	100	0	0
22	100	0	0
23	100	0	0
24	100	0	0
25	100	0	0
26	100	0	0
27	100	0	0
28	100	0	0
29	100	0	0
30	100	0	0

	Avg high (°F)	Avg low (°F)
1	93	66
2	93	66
3	92	66
4	92	66
5	92	65
6	91	65
7	91	65
8	91	65
9	90	64
10	90	64
11	90	64
12	89	64
13	89	63
14	89	63
15	88	63
16	88	62
17	88	62
18	87	62
19	87	62
20	87	61
21	86	61
22	86	61
23	86	61
24	85	60
25	85	60
26	85	60
27	84	59
28	84	59
29	83	59
30	83	58

	Clearer (%)	Cloudier (%)
1	95	5
2	94	6
3	94	6
4	94	6
5	94	6
6	94	6
7	94	6
8	95	5
9	95	5
10	95	5
11	95	5
12	95	5
13	95	5
14	95	5
15	95	5
16	95	5
17	95	5
18	95	5
19	95	5
20	95	5
21	95	5
22	94	6
23	94	6
24	94	6
25	94	6
26	94	6
27	93	7
28	93	7
29	93	7
30	93	7

	Rain chance (%)
1	2
2	2
3	2
4	2
5	2
6	2
7	2
8	2
9	2
10	2
11	2
12	2
13	2
14	2
15	2
16	2
17	2
18	2
19	2
20	2
21	2
22	2
23	2
24	2
25	2
26	2
27	2
28	2
29	2
30	2

	Dry (%)	Comfortable (%)	Humid (%)
1	97	2	1
2	97	2	1
3	97	2	1
4	97	2	1
5	97	2	1
6	97	2	1
7	97	2	1
8	97	2	1
9	98	1	1
10	98	1	1
11	98	1	1
12	99	1	0
13	99	1	0
14	99	1	0
15	99	1	0
16	99	1	0
17	100	0	0
18	100	0	0
19	100	0	0
20	100	0	0
21	100	0	0
22	100	0	0
23	100	0	0
24	100	0	0
25	100	0	0
26	100	0	0
27	100	0	0
28	100	0	0
29	100	0	0
30	100	0	0

	Avg high (°F)	Avg low (°F)
1	93	66
2	93	66
3	92	66
4	92	66
5	92	65
6	91	65
7	91	65
8	91	65
9	90	64
10	90	64
11	90	64
12	89	64
13	89	63
14	89	63
15	88	63
16	88	62
17	88	62
18	87	62
19	87	62
20	87	61
21	86	61
22	86	61
23	86	61
24	85	60
25	85	60
26	85	60
27	84	59
28	84	59
29	83	59
30	83	58

	Clearer (%)	Cloudier (%)
1	95	5
2	94	6
3	94	6
4	94	6
5	94	6
6	94	6
7	94	6
8	95	5
9	95	5
10	95	5
11	95	5
12	95	5
13	95	5
14	95	5
15	95	5
16	95	5
17	95	5
18	95	5
19	95	5
20	95	5
21	95	5
22	94	6
23	94	6
24	94	6
25	94	6
26	94	6
27	93	7
28	93	7
29	93	7
30	93	7

	Rain chance (%)
1	2
2	2
3	2
4	2
5	2
6	2
7	2
8	2
9	2
10	2
11	2
12	2
13	2
14	2
15	2
16	2
17	2
18	2
19	2
20	2
21	2
22	2
23	2
24	2
25	2
26	2
27	2
28	2
29	2
30	2

	Dry (%)	Comfortable (%)	Humid (%)
1	97	2	1
2	97	2	1
3	97	2	1
4	97	2	1
5	97	2	1
6	97	2	1
7	97	2	1
8	97	2	1
9	98	1	1
10	98	1	1
11	98	1	1
12	99	1	0
13	99	1	0
14	99	1	0
15	99	1	0
16	99	1	0
17	100	0	0
18	100	0	0
19	100	0	0
20	100	0	0
21	100	0	0
22	100	0	0
23	100	0	0
24	100	0	0
25	100	0	0
26	100	0	0
27	100	0	0
28	100	0	0
29	100	0	0
30	100	0	0