South Valley weather in September

In September, South Valley sees average daytime highs of 81°F and overnight lows near 58°F, with 0.9 in of rain across 3.5 wet days and about 12.2 hours of daylight. It is the 4th-warmest and 3rd-wettest month of the year here.

Highs ease over the month, from about 85°F in the first days to 78°F by the end. The sky is clear or mostly clear about 70% 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 South Valley's 3rd-clearest and 7th-windiest month. For the whole year in context, see South Valley's year-round climate.

Daytime high: 81°; 4th warmest
Overnight low: 58°; 9th coldest
Rainfall: 0.9 in; 3.5 wet days
Daylight: 12 h 12 min; 5:55 AM – 6:08 PM
Cloud cover: 29%; 3rd clearest
Wind: 5 mph; 7th windiest
Solar energy: 6.02 kWh/m²
Travel score: 7.7; out of 10

South Valley is census designated place in Bernalillo County, New Mexico, United States.

Density: 526/km²; people per km²

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

← August South Valley 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 85°F in the first days to 78°F by the end.

A typical September day in South Valley reaches about 81°F in the afternoon and slips back to 58°F overnight — a 23°F spread between the day's warmth and the night's chill. On most days the high lands between 73°F and 88°F. Set against its neighbours, September runs about 6°F cooler than August and about 11°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)	85	85	85	84	84	84	83	83	83	82	82	82	82	81	81	81	80	80	80	80	80	79	79	79	79	78	78	78	77	77
Avg low (°F)	63	62	62	62	62	61	61	61	60	60	60	59	59	58	58	58	57	57	57	56	56	56	55	55	55	54	54	54	53	53

	Avg high (°F)	Avg low (°F)
1	85	63
2	85	62
3	85	62
4	84	62
5	84	62
6	84	61
7	83	61
8	83	61
9	83	60
10	82	60
11	82	60
12	82	59
13	82	59
14	81	58
15	81	58
16	81	58
17	80	57
18	80	57
19	80	57
20	80	56
21	80	56
22	79	56
23	79	55
24	79	55
25	79	55
26	78	54
27	78	54
28	78	54
29	77	53
30	77	53

How September really feels in South Valley

Once humidity and wind are folded in, September averages 0 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

September sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

South Valley weather by month

How September compares with the rest of the year at a glance. September is the 4th-warmest and 3rd-wettest month here — the current month is highlighted below.

Month	High / Low (°F)	Rainfall (inches)	Wet days	Snow days	Daylight (hours)	Travel score
Jan	47° / 26°	0.6	3.8	1.8	9.9	1.8
Feb	53° / 31°	0.5	3.6	1.1	10.7	3.7
Mar	62° / 37°	0.6	3.3	0.6	11.7	6.4
Apr	69° / 44°	0.5	2.4	0.3	12.9	8.0
May	79° / 53°	0.5	2.6	0	13.8	8.1
Jun	89° / 62°	0.3	1.9	0	14.3	5.4
Jul	90° / 67°	0.9	5.3	0	14.1	4.6
Aug	87° / 65°	0.7	4.4	0	13.3	5.5
Sep	81° / 58°	0.9	3.5	0	12.2	7.7
Oct	70° / 46°	0.9	3.5	0.2	11.1	8.0
Nov	56° / 34°	0.6	3.1	0.6	10.2	4.9
Dec	46° / 27°	0.7	3.7	1.8	9.7	1.7

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 70% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 15% 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 (%)	86	86	86	85	85	85	84	84	84	84	84	84	84	84	84	84	84	85	85	85	85	85	86	86	86	86	86	85	84	85
Cloudier (%)	14	14	14	15	15	15	16	16	16	16	16	16	16	16	16	16	16	15	15	15	15	15	14	14	14	14	14	15	16	15

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

Chance of precipitation in September

Any precipitation

South Valley gets around 0.9 in of rain over 3.5 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 11% and peaks near 14% 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 (%)	10	11	11	11	12	12	13	13	13	14	14	14	14	13	13	13	12	12	11	11	10	10	10	9	9	9	10	10	10	10

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

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 95% 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 (%)	92	93	93	93	94	94	94	94	94	94	94	94	94	94	94	94	95	95	95	96	96	96	97	97	97	97	98	98	98	98
Comfortable (%)	8	7	7	7	6	6	6	6	6	6	6	6	6	6	6	6	5	5	5	4	4	4	3	3	3	3	2	2	2	2

	Dry (%)	Comfortable (%)
1	92	8
2	93	7
3	93	7
4	93	7
5	94	6
6	94	6
7	94	6
8	94	6
9	94	6
10	94	6
11	94	6
12	94	6
13	94	6
14	94	6
15	94	6
16	94	6
17	95	5
18	95	5
19	95	5
20	96	4
21	96	4
22	96	4
23	97	3
24	97	3
25	97	3
26	97	3
27	98	2
28	98	2
29	98	2
30	98	2

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.

	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	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	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	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 5:43 AM to 6:05 AM, and sunset from 6:30 PM to 5:47 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	12.7	12.7	12.7	12.6	12.6	12.6	12.5	12.5	12.4	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)	5:43	5:44	5:45	5:46	5:46	5:47	5:48	5:49	5:49	5:50	5:51	5:52	5:52	5:53	5:54	5:55	5:55	5:56	5:57	5:58	5:58	5:59	6:00	6:01	6:01	6:02	6:03	6:04	6:05	6:05
Sunset (PM)	6:30	6:28	6:27	6:25	6:24	6:22	6:21	6:19	6:18	6:16	6:15	6:14	6:12	6:11	6:09	6:08	6:06	6:05	6:03	6:02	6:00	5:59	5:57	5:56	5:54	5:53	5:51	5:50	5:48	5:47

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	12.8	5:43	6:30
2	12.7	5:44	6:28
3	12.7	5:45	6:27
4	12.7	5:46	6:25
5	12.6	5:46	6:24
6	12.6	5:47	6:22
7	12.6	5:48	6:21
8	12.5	5:49	6:19
9	12.5	5:49	6:18
10	12.4	5:50	6:16
11	12.4	5:51	6:15
12	12.4	5:52	6:14
13	12.3	5:52	6:12
14	12.3	5:53	6:11
15	12.3	5:54	6:09
16	12.2	5:55	6:08
17	12.2	5:55	6:06
18	12.1	5:56	6:05
19	12.1	5:57	6:03
20	12.1	5:58	6:02
21	12.0	5:58	6:00
22	12.0	5:59	5:59
23	12.0	6:00	5:57
24	11.9	6:01	5:56
25	11.9	6:01	5:54
26	11.8	6:02	5:53
27	11.8	6:03	5:51
28	11.8	6:04	5:50
29	11.7	6:05	5:48
30	11.7	6:05	5:47

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 6.02 kWh/m².

For context, solar energy here swings from a low near 3.07 kWh/m² to a high of 8.26 kWh/m² in June across the year — September's 6.02 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	6.3	6.3	6.3	6.2	6.2	6.1	6.1	6.1	6.0	6.0	6.0	6.0	5.9	5.9	5.9	5.9	5.8	5.8	5.8	5.8	5.7	5.7	5.7	5.6	5.6	5.5
Level	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	Bright	Bright

	Solar energy (kWh/m²)	Level
1	6.5	Intense
2	6.5	Intense
3	6.4	Intense
4	6.4	Intense
5	6.3	Intense
6	6.3	Intense
7	6.3	Intense
8	6.2	Intense
9	6.2	Intense
10	6.1	Intense
11	6.1	Intense
12	6.1	Intense
13	6.0	Intense
14	6.0	Intense
15	6.0	Bright
16	6.0	Bright
17	5.9	Bright
18	5.9	Bright
19	5.9	Bright
20	5.9	Bright
21	5.8	Bright
22	5.8	Bright
23	5.8	Bright
24	5.8	Bright
25	5.7	Bright
26	5.7	Bright
27	5.7	Bright
28	5.6	Bright
29	5.6	Bright
30	5.5	Bright

Planning a trip in September

Is September a good time to visit South Valley?

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

7.7

Sightseeing

4th-best month of the year

8.1

Beach & pool

2nd-best month of the year

September is one of the better times to visit South Valley for general sightseeing. The water and warmth also suit a beach or pool day.

What to pack for South Valley in September

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

In September, South Valley sees daytime highs around 81°F and nights near 58°F. Pack light clothes and sun protection. About 4 days see rain.

light clothessun protection

UV index in South Valley 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 South Valley peaks around June 23 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 19 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)	4	5	6	8	9	12	12	11	9	6	4	3
Level	Moderate	Moderate	High	Very high	Very high	Extreme	Extreme	Extreme	Very high	High	Moderate	Moderate

	UV index (midday)	Level
Jan	4	Moderate
Feb	5	Moderate
Mar	6	High
Apr	8	Very high
May	9	Very high
Jun	12	Extreme
Jul	12	Extreme
Aug	11	Extreme
Sep	9	Very high
Oct	6	High
Nov	4	Moderate
Dec	3	Moderate

Location & terrain

Where is South Valley?

South Valley sits at 35.0°N, 106.7°W, 4,925 ft above sea level, in United States. The nearest listed city is Albuquerque, 5.6 mi away.

Topography around South Valley

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

Within 2 miles, the terrain around South Valley has only modest variations in elevation — a maximum elevation change of 246 ft around an average of 4,941 ft above sea level; within 10 miles, significant variations in elevation — a maximum elevation change of 1,168 ft; within 50 miles, very significant variations in elevation — a maximum elevation change of 5,942 ft.

The land around South Valley is covered by artificial surfaces (36%) and bare terrain (20%) within 2 miles, grassland (48%) and artificial surfaces (25%) within 10 miles, and grassland (57%) within 50 miles.

2 miles

246 ft

artificial surfaces 36%

10 miles

1,168 ft

grassland 48%

50 miles

5,942 ft

grassland 57%

treesshrubsgrasslandcroplandartificial surfacesbare terrainwater

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

September weather nearby: Albuquerque 5.6 mi · Los Lunas 14 mi · Rio Rancho 16 mi · Enchanted Hills 23 mi · Santa Fe 63 mi · Gallup 122 mi · Farmington 147 mi · Alamogordo 152 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 South Valley (35.01°, -106.6781°, elevation 4,925 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	85	63
2	85	62
3	85	62
4	84	62
5	84	62
6	84	61
7	83	61
8	83	61
9	83	60
10	82	60
11	82	60
12	82	59
13	82	59
14	81	58
15	81	58
16	81	58
17	80	57
18	80	57
19	80	57
20	80	56
21	80	56
22	79	56
23	79	55
24	79	55
25	79	55
26	78	54
27	78	54
28	78	54
29	77	53
30	77	53

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

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

	Dry (%)	Comfortable (%)
1	92	8
2	93	7
3	93	7
4	93	7
5	94	6
6	94	6
7	94	6
8	94	6
9	94	6
10	94	6
11	94	6
12	94	6
13	94	6
14	94	6
15	94	6
16	94	6
17	95	5
18	95	5
19	95	5
20	96	4
21	96	4
22	96	4
23	97	3
24	97	3
25	97	3
26	97	3
27	98	2
28	98	2
29	98	2
30	98	2

	Avg high (°F)	Avg low (°F)
1	85	63
2	85	62
3	85	62
4	84	62
5	84	62
6	84	61
7	83	61
8	83	61
9	83	60
10	82	60
11	82	60
12	82	59
13	82	59
14	81	58
15	81	58
16	81	58
17	80	57
18	80	57
19	80	57
20	80	56
21	80	56
22	79	56
23	79	55
24	79	55
25	79	55
26	78	54
27	78	54
28	78	54
29	77	53
30	77	53

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

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

	Dry (%)	Comfortable (%)
1	92	8
2	93	7
3	93	7
4	93	7
5	94	6
6	94	6
7	94	6
8	94	6
9	94	6
10	94	6
11	94	6
12	94	6
13	94	6
14	94	6
15	94	6
16	94	6
17	95	5
18	95	5
19	95	5
20	96	4
21	96	4
22	96	4
23	97	3
24	97	3
25	97	3
26	97	3
27	98	2
28	98	2
29	98	2
30	98	2

	Avg high (°F)	Avg low (°F)
1	85	63
2	85	62
3	85	62
4	84	62
5	84	62
6	84	61
7	83	61
8	83	61
9	83	60
10	82	60
11	82	60
12	82	59
13	82	59
14	81	58
15	81	58
16	81	58
17	80	57
18	80	57
19	80	57
20	80	56
21	80	56
22	79	56
23	79	55
24	79	55
25	79	55
26	78	54
27	78	54
28	78	54
29	77	53
30	77	53

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

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

	Dry (%)	Comfortable (%)
1	92	8
2	93	7
3	93	7
4	93	7
5	94	6
6	94	6
7	94	6
8	94	6
9	94	6
10	94	6
11	94	6
12	94	6
13	94	6
14	94	6
15	94	6
16	94	6
17	95	5
18	95	5
19	95	5
20	96	4
21	96	4
22	96	4
23	97	3
24	97	3
25	97	3
26	97	3
27	98	2
28	98	2
29	98	2
30	98	2