Las Cruces weather in September

In September, Las Cruces sees average daytime highs of 86°F and overnight lows near 63°F, with 1.1 in of rain across 3.8 wet days and about 12.2 hours of daylight. It is the 4th-warmest and 2nd-wettest month of the year here.

Highs ease over the month, from about 89°F in the first days to 84°F by the end. The sky is clear or mostly clear about 71% 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 Las Cruces's 6th-clearest and 9th-windiest month. For the whole year in context, see Las Cruces's year-round climate.

Daytime high: 86°; 4th warmest
Overnight low: 63°; 9th coldest
Rainfall: 1.1 in; 3.8 wet days
Daylight: 12 h 12 min; 5:56 AM – 6:07 PM
Cloud cover: 30%; 6th clearest
Wind: 6 mph; 9th windiest
Solar energy: 6.07 kWh/m²
Travel score: 6.0; out of 10

Las Cruces is city in and county seat of Doña Ana County, New Mexico, United States.

Founded: 1849

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

← August Las Cruces 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 89°F in the first days to 84°F by the end.

A typical September day in Las Cruces reaches about 86°F in the afternoon and slips back to 63°F overnight — a 23°F spread between the day's warmth and the night's chill. On most days the high lands between 78°F and 93°F. Set against its neighbours, September runs about 5°F cooler than August and about 10°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)	90	89	89	89	89	88	88	88	87	87	87	87	86	86	86	86	86	85	85	85	85	85	85	85	85	84	84	84	84	83
Avg low (°F)	67	67	67	67	66	66	66	65	65	65	65	64	64	64	64	63	63	63	62	62	62	62	61	61	61	60	60	60	59	59

	Avg high (°F)	Avg low (°F)
1	90	67
2	89	67
3	89	67
4	89	67
5	89	66
6	88	66
7	88	66
8	88	65
9	87	65
10	87	65
11	87	65
12	87	64
13	86	64
14	86	64
15	86	64
16	86	63
17	86	63
18	85	63
19	85	62
20	85	62
21	85	62
22	85	62
23	85	61
24	85	61
25	85	61
26	84	60
27	84	60
28	84	60
29	84	59
30	83	59

How September really feels in Las Cruces

Once humidity and wind are folded in, September averages 1 day 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.

Las Cruces weather by month

How September compares with the rest of the year at a glance. September is the 4th-warmest and 2nd-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° / 34°	0.5	3	0.6	10.1	4.8
Feb	62° / 38°	0.5	2.9	0.2	10.8	6.5
Mar	69° / 44°	0.4	1.9	0	11.8	8.1
Apr	77° / 50°	0.2	1.2	0	12.8	8.8
May	86° / 59°	0.3	1.7	0	13.6	6.4
Jun	94° / 68°	0.4	2.1	0	14.1	3.4
Jul	94° / 71°	1.3	7	0	13.9	3.2
Aug	92° / 69°	1.0	6.2	0	13.2	3.9
Sep	86° / 63°	1.1	3.8	0	12.2	6.0
Oct	77° / 52°	0.8	3.1	0	11.2	8.4
Nov	65° / 41°	0.6	2.2	0.3	10.3	7.3
Dec	56° / 34°	0.7	3.3	0.6	9.9	4.5

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 71% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 14% of September, with mostly cloudy or overcast conditions the remaining 15%. Skies tend to open up as the month goes on.

	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 (%)	85	86	85	85	85	85	85	84	84	84	84	85	85	85	84	84	84	85	85	86	86	87	87	87	87	87	87	87	87	87
Cloudier (%)	15	14	15	15	15	15	15	16	16	16	16	15	15	15	16	16	16	15	15	14	14	13	13	13	13	13	13	13	13	13

	Clearer (%)	Cloudier (%)
1	85	15
2	86	14
3	85	15
4	85	15
5	85	15
6	85	15
7	85	15
8	84	16
9	84	16
10	84	16
11	84	16
12	85	15
13	85	15
14	85	15
15	84	16
16	84	16
17	84	16
18	85	15
19	85	15
20	86	14
21	86	14
22	87	13
23	87	13
24	87	13
25	87	13
26	87	13
27	87	13
28	87	13
29	87	13
30	87	13

Chance of precipitation in September

Any precipitation

Las Cruces gets around 1.1 in of rain over 3.8 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 13% and peaks near 17% on the wettest days. The odds ease toward the end of the month.

	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 (%)	16	16	16	17	17	17	17	17	16	16	16	16	16	15	15	14	13	13	12	11	11	10	10	9	9	9	9	9	9	9

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

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 75% 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 (%)	68	68	68	68	68	68	68	69	69	69	70	70	70	71	71	72	72	74	75	77	79	80	82	84	84	86	87	88	88	89
Comfortable (%)	20	20	20	20	20	20	20	20	20	20	19	19	19	18	18	17	17	16	15	14	13	12	11	10	10	9	8	8	8	8
Humid (%)	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11	10	10	9	8	8	7	6	6	5	5	4	4	3
Muggy (%)	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	0	0	0	0

	Dry (%)	Comfortable (%)	Humid (%)	Muggy (%)
1	68	20	11	1
2	68	20	11	1
3	68	20	11	1
4	68	20	11	1
5	68	20	11	1
6	68	20	11	1
7	68	20	11	1
8	69	20	11	0
9	69	20	11	0
10	69	20	11	0
11	70	19	11	0
12	70	19	11	0
13	70	19	11	0
14	71	18	11	0
15	71	18	11	0
16	72	17	11	0
17	72	17	11	0
18	74	16	10	0
19	75	15	10	0
20	77	14	9	0
21	79	13	8	0
22	80	12	8	0
23	82	11	7	0
24	84	10	6	0
25	84	10	6	0
26	86	9	5	0
27	87	8	5	0
28	88	8	4	0
29	88	8	4	0
30	89	8	3	0

Wind in September

Winds average 6 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)	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	6	6	6	6	6	6	6	6	6	6	6	6	6
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	5	calm
2	5	calm
3	5	calm
4	5	calm
5	5	calm
6	5	calm
7	5	calm
8	5	calm
9	5	calm
10	5	calm
11	5	calm
12	5	calm
13	5	calm
14	5	calm
15	5	calm
16	5	calm
17	5	calm
18	6	calm
19	6	calm
20	6	calm
21	6	calm
22	6	calm
23	6	calm
24	6	calm
25	6	calm
26	6	calm
27	6	calm
28	6	calm
29	6	calm
30	6	calm

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 5:46 AM to 6:05 AM, and sunset from 6:28 PM to 5:48 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)	12.7	12.7	12.6	12.6	12.6	12.5	12.5	12.5	12.4	12.4	12.4	12.3	12.3	12.3	12.2	12.2	12.2	12.1	12.1	12.1	12.0	12.0	12.0	11.9	11.9	11.9	11.8	11.8	11.8	11.7
Sunrise (AM)	5:46	5:47	5:47	5:48	5:49	5:49	5:50	5:50	5:51	5:52	5:52	5:53	5:54	5:54	5:55	5:56	5:56	5:57	5:58	5:58	5:59	5:59	6:00	6:01	6:01	6:02	6:03	6:03	6:04	6:05
Sunset (PM)	6:28	6:26	6:25	6:24	6:22	6:21	6:20	6:18	6:17	6:16	6:14	6:13	6:11	6:10	6:09	6:07	6:06	6:05	6:03	6:02	6:00	5:59	5:58	5:56	5:55	5:53	5:52	5:51	5:49	5:48

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	12.7	5:46	6:28
2	12.7	5:47	6:26
3	12.6	5:47	6:25
4	12.6	5:48	6:24
5	12.6	5:49	6:22
6	12.5	5:49	6:21
7	12.5	5:50	6:20
8	12.5	5:50	6:18
9	12.4	5:51	6:17
10	12.4	5:52	6:16
11	12.4	5:52	6:14
12	12.3	5:53	6:13
13	12.3	5:54	6:11
14	12.3	5:54	6:10
15	12.2	5:55	6:09
16	12.2	5:56	6:07
17	12.2	5:56	6:06
18	12.1	5:57	6:05
19	12.1	5:58	6:03
20	12.1	5:58	6:02
21	12.0	5:59	6:00
22	12.0	5:59	5:59
23	12.0	6:00	5:58
24	11.9	6:01	5:56
25	11.9	6:01	5:55
26	11.9	6:02	5:53
27	11.8	6:03	5:52
28	11.8	6:03	5:51
29	11.8	6:04	5:49
30	11.7	6:05	5:48

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 6.07 kWh/m².

For context, solar energy here swings from a low near 3.37 kWh/m² to a high of 8.25 kWh/m² in June across the year — September's 6.07 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)	6.5	6.5	6.4	6.4	6.4	6.3	6.3	6.3	6.2	6.2	6.1	6.1	6.1	6.0	6.0	6.0	6.0	6.0	5.9	5.9	5.9	5.9	5.9	5.8	5.8	5.8	5.8	5.8	5.7	5.7
Level	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright

	Solar energy (kWh/m²)	Level
1	6.5	Intense
2	6.5	Intense
3	6.4	Intense
4	6.4	Intense
5	6.4	Intense
6	6.3	Intense
7	6.3	Intense
8	6.3	Intense
9	6.2	Intense
10	6.2	Intense
11	6.1	Intense
12	6.1	Intense
13	6.1	Intense
14	6.0	Intense
15	6.0	Intense
16	6.0	Intense
17	6.0	Bright
18	6.0	Bright
19	5.9	Bright
20	5.9	Bright
21	5.9	Bright
22	5.9	Bright
23	5.9	Bright
24	5.8	Bright
25	5.8	Bright
26	5.8	Bright
27	5.8	Bright
28	5.8	Bright
29	5.7	Bright
30	5.7	Bright

Planning a trip in September

Is September a good time to visit Las Cruces?

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

6.0

Sightseeing

7th-best month of the year

8.2

Beach & pool

2nd-best month of the year

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

What to pack for Las Cruces in September

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

In September, Las Cruces sees daytime highs around 86°F and nights near 63°F. Pack light clothes and sun protection. About 4 days see rain.

light clothessun protection

UV index in Las Cruces in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 10 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Las Cruces peaks around July 14 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 20 at about 4 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
UV index (midday)	4	6	7	10	10	12	12	12	10	7	5	4
Level	Moderate	High	Very high	Very high	Very high	Extreme	Extreme	Extreme	Very high	High	High	Moderate

	UV index (midday)	Level
Jan	4	Moderate
Feb	6	High
Mar	7	Very high
Apr	10	Very high
May	10	Very high
Jun	12	Extreme
Jul	12	Extreme
Aug	12	Extreme
Sep	10	Very high
Oct	7	High
Nov	5	High
Dec	4	Moderate

Location & terrain

Where is Las Cruces?

Las Cruces sits at 32.3°N, 106.8°W, 3,907 ft above sea level, in United States. The nearest listed city is Sunland Park, 37 mi away.

Topography around Las Cruces

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

Within 2 miles, the terrain around Las Cruces has only modest variations in elevation — a maximum elevation change of 292 ft around an average of 3,937 ft above sea level; within 10 miles, significant variations in elevation — a maximum elevation change of 1,906 ft; within 50 miles, very significant variations in elevation — a maximum elevation change of 4,948 ft.

The land around Las Cruces is covered by artificial surfaces (75%) within 2 miles, shrubs (53%) within 10 miles, and shrubs (49%) and bare terrain (30%) within 50 miles.

2 miles

292 ft

artificial surfaces 75%

10 miles

1,906 ft

shrubs 53%

50 miles

4,948 ft

shrubs 49%

treesshrubsgrasslandcroplandartificial surfacesbare terrain

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

September weather nearby: Sunland Park 37 mi · El Paso 42 mi · Ciudad Juárez 45 mi · Socorro 53 mi · Horizon City 54 mi · Socorro Mission Number 1 Colonia 55 mi · Alamogordo 63 mi · Nuevo Casas Grandes 147 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 Las Cruces (32.3123°, -106.7783°, elevation 3,907 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. 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	90	67
2	89	67
3	89	67
4	89	67
5	89	66
6	88	66
7	88	66
8	88	65
9	87	65
10	87	65
11	87	65
12	87	64
13	86	64
14	86	64
15	86	64
16	86	63
17	86	63
18	85	63
19	85	62
20	85	62
21	85	62
22	85	62
23	85	61
24	85	61
25	85	61
26	84	60
27	84	60
28	84	60
29	84	59
30	83	59

	Clearer (%)	Cloudier (%)
1	85	15
2	86	14
3	85	15
4	85	15
5	85	15
6	85	15
7	85	15
8	84	16
9	84	16
10	84	16
11	84	16
12	85	15
13	85	15
14	85	15
15	84	16
16	84	16
17	84	16
18	85	15
19	85	15
20	86	14
21	86	14
22	87	13
23	87	13
24	87	13
25	87	13
26	87	13
27	87	13
28	87	13
29	87	13
30	87	13

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

	Dry (%)	Comfortable (%)	Humid (%)	Muggy (%)
1	68	20	11	1
2	68	20	11	1
3	68	20	11	1
4	68	20	11	1
5	68	20	11	1
6	68	20	11	1
7	68	20	11	1
8	69	20	11	0
9	69	20	11	0
10	69	20	11	0
11	70	19	11	0
12	70	19	11	0
13	70	19	11	0
14	71	18	11	0
15	71	18	11	0
16	72	17	11	0
17	72	17	11	0
18	74	16	10	0
19	75	15	10	0
20	77	14	9	0
21	79	13	8	0
22	80	12	8	0
23	82	11	7	0
24	84	10	6	0
25	84	10	6	0
26	86	9	5	0
27	87	8	5	0
28	88	8	4	0
29	88	8	4	0
30	89	8	3	0

	Avg high (°F)	Avg low (°F)
1	90	67
2	89	67
3	89	67
4	89	67
5	89	66
6	88	66
7	88	66
8	88	65
9	87	65
10	87	65
11	87	65
12	87	64
13	86	64
14	86	64
15	86	64
16	86	63
17	86	63
18	85	63
19	85	62
20	85	62
21	85	62
22	85	62
23	85	61
24	85	61
25	85	61
26	84	60
27	84	60
28	84	60
29	84	59
30	83	59

	Clearer (%)	Cloudier (%)
1	85	15
2	86	14
3	85	15
4	85	15
5	85	15
6	85	15
7	85	15
8	84	16
9	84	16
10	84	16
11	84	16
12	85	15
13	85	15
14	85	15
15	84	16
16	84	16
17	84	16
18	85	15
19	85	15
20	86	14
21	86	14
22	87	13
23	87	13
24	87	13
25	87	13
26	87	13
27	87	13
28	87	13
29	87	13
30	87	13

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

	Dry (%)	Comfortable (%)	Humid (%)	Muggy (%)
1	68	20	11	1
2	68	20	11	1
3	68	20	11	1
4	68	20	11	1
5	68	20	11	1
6	68	20	11	1
7	68	20	11	1
8	69	20	11	0
9	69	20	11	0
10	69	20	11	0
11	70	19	11	0
12	70	19	11	0
13	70	19	11	0
14	71	18	11	0
15	71	18	11	0
16	72	17	11	0
17	72	17	11	0
18	74	16	10	0
19	75	15	10	0
20	77	14	9	0
21	79	13	8	0
22	80	12	8	0
23	82	11	7	0
24	84	10	6	0
25	84	10	6	0
26	86	9	5	0
27	87	8	5	0
28	88	8	4	0
29	88	8	4	0
30	89	8	3	0

	Avg high (°F)	Avg low (°F)
1	90	67
2	89	67
3	89	67
4	89	67
5	89	66
6	88	66
7	88	66
8	88	65
9	87	65
10	87	65
11	87	65
12	87	64
13	86	64
14	86	64
15	86	64
16	86	63
17	86	63
18	85	63
19	85	62
20	85	62
21	85	62
22	85	62
23	85	61
24	85	61
25	85	61
26	84	60
27	84	60
28	84	60
29	84	59
30	83	59

	Clearer (%)	Cloudier (%)
1	85	15
2	86	14
3	85	15
4	85	15
5	85	15
6	85	15
7	85	15
8	84	16
9	84	16
10	84	16
11	84	16
12	85	15
13	85	15
14	85	15
15	84	16
16	84	16
17	84	16
18	85	15
19	85	15
20	86	14
21	86	14
22	87	13
23	87	13
24	87	13
25	87	13
26	87	13
27	87	13
28	87	13
29	87	13
30	87	13

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

	Dry (%)	Comfortable (%)	Humid (%)	Muggy (%)
1	68	20	11	1
2	68	20	11	1
3	68	20	11	1
4	68	20	11	1
5	68	20	11	1
6	68	20	11	1
7	68	20	11	1
8	69	20	11	0
9	69	20	11	0
10	69	20	11	0
11	70	19	11	0
12	70	19	11	0
13	70	19	11	0
14	71	18	11	0
15	71	18	11	0
16	72	17	11	0
17	72	17	11	0
18	74	16	10	0
19	75	15	10	0
20	77	14	9	0
21	79	13	8	0
22	80	12	8	0
23	82	11	7	0
24	84	10	6	0
25	84	10	6	0
26	86	9	5	0
27	87	8	5	0
28	88	8	4	0
29	88	8	4	0
30	89	8	3	0