Aguascalientes weather in September

In September, Aguascalientes sees average daytime highs of 25°C and overnight lows near 14°C, with 90 mm of rain across 12 wet days and about 12.1 hours of daylight. It is the 7th-warmest and 2nd-wettest month of the year here.

Day-to-day highs hold fairly steady near 25°C through the month. The sky is clear or mostly clear about 26% of the time in September, and the air most often feels dry.

Daylight stretches from about 12 h 24 min at the start of September to 11 h 48 min by month's end. Set against the rest of the year, September is Aguascalientes's 12th-clearest and 7th-windiest month. For the whole year in context, see Aguascalientes's year-round climate.

Daytime high: 25°; 7th warmest
Overnight low: 14°; 9th coldest
Rainfall: 90 mm; 12 wet days
Daylight: 12 h 06 min; 6:40 AM – 6:47 PM
Cloud cover: 62%; 12th clearest
Wind: 9 km/h; 7th windiest
Solar energy: 5.67 kWh/m²
Travel score: 6.4; out of 10

Aguascalientes is capital of the Mexican state of Aguascalientes.

Air quality: Elevated; PM2.5 25 µg/m³ · 2018
Density: 618/km²; people per km²
Founded: 1575

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

← August Aguascalientes 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

Day-to-day highs hold fairly steady near 25°C through the month.

A typical September day in Aguascalientes reaches about 25°C in the afternoon and slips back to 14°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 22°C and 28°C. Set against its neighbours, September runs about 1°C cooler than August and on par with 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 (°C)	26	26	25	25	25	25	25	25	25	25	25	25	25	25	25	25	25	25	25	25	25	25	25	25	25	25	25	25	25	25
Avg low (°C)	15	15	15	15	15	15	15	15	15	15	15	15	15	15	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14

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

Aguascalientes weather by month

How September compares with the rest of the year at a glance. September is the 7th-warmest and 2nd-wettest month here — the current month is highlighted below.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Daylight (hours)	Travel score
Jan	21° / 6°	17	2.5	10.8	7.9
Feb	23° / 8°	13	1.8	11.2	8.6
Mar	26° / 10°	8	1.4	11.8	8.5
Apr	28° / 12°	6	1.5	12.5	7.2
May	30° / 14°	28	5.7	13	5.9
Jun	28° / 16°	81	11.4	13.3	5.7
Jul	27° / 15°	110	14	13.2	6.1
Aug	26° / 15°	89	12.4	12.8	6.3
Sep	25° / 14°	90	12	12.1	6.4
Oct	25° / 12°	35	5.8	11.5	7.7
Nov	24° / 9°	11	1.9	11	8.7
Dec	22° / 7°	8	1.4	10.7	8.2

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 26% of the time in September, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 21% of September, with mostly cloudy or overcast conditions the remaining 52%. 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 (%)	46	46	45	45	45	45	44	45	45	46	46	46	46	47	47	47	47	47	49	49	49	49	50	50	50	51	52	52	53	54
Cloudier (%)	54	54	55	55	55	55	56	55	55	54	54	54	54	53	53	53	53	53	51	51	51	51	50	50	50	49	48	48	47	46

	Clearer (%)	Cloudier (%)
1	46	54
2	46	54
3	45	55
4	45	55
5	45	55
6	45	55
7	44	56
8	45	55
9	45	55
10	46	54
11	46	54
12	46	54
13	46	54
14	47	53
15	47	53
16	47	53
17	47	53
18	47	53
19	49	51
20	49	51
21	49	51
22	49	51
23	50	50
24	50	50
25	50	50
26	51	49
27	52	48
28	52	48
29	53	47
30	54	46

Chance of precipitation in September

Any precipitation

Aguascalientes gets around 90 mm of rain over 12 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 39% and peaks near 46% 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 (%)	45	45	45	45	46	46	46	46	45	45	45	44	44	43	43	42	41	40	39	38	37	35	34	32	31	30	29	28	27	27

	Rain chance (%)
1	45
2	45
3	45
4	45
5	46
6	46
7	46
8	46
9	45
10	45
11	45
12	44
13	44
14	43
15	43
16	42
17	41
18	40
19	39
20	38
21	37
22	35
23	34
24	32
25	31
26	30
27	29
28	28
29	27
30	27

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 54% 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 (%)	49	49	48	48	47	47	47	47	47	47	48	49	49	50	50	51	52	52	53	54	56	57	58	60	62	63	65	66	67	69
Comfortable (%)	45	46	46	47	47	47	47	47	47	47	46	46	45	44	44	43	42	42	41	40	39	38	37	36	34	33	32	31	30	29
Humid (%)	5	5	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	5	5	5	4	4	4	3	3	3	2

	Dry (%)	Comfortable (%)	Humid (%)
1	49	45	5
2	49	46	5
3	48	46	6
4	48	47	6
5	47	47	6
6	47	47	6
7	47	47	6
8	47	47	6
9	47	47	6
10	47	47	6
11	48	46	6
12	49	46	6
13	49	45	6
14	50	44	6
15	50	44	6
16	51	43	6
17	52	42	6
18	52	42	6
19	53	41	6
20	54	40	6
21	56	39	5
22	57	38	5
23	58	37	5
24	60	36	4
25	62	34	4
26	63	33	4
27	65	32	3
28	66	31	3
29	67	30	3
30	69	29	2

Wind in September

Winds average 9 km/h in September.

Across September, daily wind ranges from about 9 km/h on the calmest days to 9 km/h 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 (km/h)	9	9	9	9	9	9	9	9	9	9	9	9	9	9	9	9	9	9	9	9	9	9	9	9	9	9	9	9	9	9
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 (km/h)	Feels
1	9	calm
2	9	calm
3	9	calm
4	9	calm
5	9	calm
6	9	calm
7	9	calm
8	9	calm
9	9	calm
10	9	calm
11	9	calm
12	9	calm
13	9	calm
14	9	calm
15	9	calm
16	9	calm
17	9	calm
18	9	calm
19	9	calm
20	9	calm
21	9	calm
22	9	calm
23	9	calm
24	9	calm
25	9	calm
26	9	calm
27	9	calm
28	9	calm
29	9	calm
30	9	calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 24 min at the start of September to 11 h 48 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 36 minutes over September. Sunrise moves from 6:36 AM to 6:44 AM, and sunset from 7:02 PM to 6:33 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)	12.4	12.4	12.4	12.4	12.4	12.3	12.3	12.3	12.3	12.3	12.2	12.2	12.2	12.2	12.1	12.1	12.1	12.1	12.1	12.0	12.0	12.0	12.0	12.0	11.9	11.9	11.9	11.9	11.8	11.8
Sunrise (AM)	6:36	6:36	6:36	6:36	6:37	6:37	6:37	6:38	6:38	6:38	6:38	6:39	6:39	6:39	6:39	6:40	6:40	6:40	6:41	6:41	6:41	6:41	6:42	6:42	6:42	6:43	6:43	6:43	6:43	6:44
Sunset (PM)	7:02	7:01	7:00	6:59	6:58	6:57	6:56	6:55	6:54	6:53	6:52	6:51	6:50	6:49	6:48	6:47	6:46	6:45	6:44	6:43	6:42	6:41	6:40	6:39	6:38	6:37	6:36	6:35	6:34	6:33

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	12.4	6:36	7:02
2	12.4	6:36	7:01
3	12.4	6:36	7:00
4	12.4	6:36	6:59
5	12.4	6:37	6:58
6	12.3	6:37	6:57
7	12.3	6:37	6:56
8	12.3	6:38	6:55
9	12.3	6:38	6:54
10	12.3	6:38	6:53
11	12.2	6:38	6:52
12	12.2	6:39	6:51
13	12.2	6:39	6:50
14	12.2	6:39	6:49
15	12.1	6:39	6:48
16	12.1	6:40	6:47
17	12.1	6:40	6:46
18	12.1	6:40	6:45
19	12.1	6:41	6:44
20	12.0	6:41	6:43
21	12.0	6:41	6:42
22	12.0	6:41	6:41
23	12.0	6:42	6:40
24	12.0	6:42	6:39
25	11.9	6:42	6:38
26	11.9	6:43	6:37
27	11.9	6:43	6:36
28	11.9	6:43	6:35
29	11.8	6:43	6:34
30	11.8	6:44	6:33

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.67 kWh/m².

For context, solar energy here swings from a low near 4.73 kWh/m² to a high of 7.72 kWh/m² in May across the year — September's 5.67 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)	6.0	5.9	5.9	5.9	5.8	5.8	5.8	5.8	5.8	5.8	5.8	5.7	5.7	5.7	5.7	5.7	5.7	5.7	5.7	5.7	5.7	5.6	5.6	5.6	5.6	5.6	5.6	5.6	5.6	5.6
Level	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright

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

Planning a trip in September

Is September a good time to visit Aguascalientes?

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

6.4

Sightseeing

8th-best month of the year

5.9

Beach & pool

10th-best month of the year

September is a reasonable time to visit Aguascalientes for sightseeing.

What to pack for Aguascalientes in September

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

In September, Aguascalientes sees daytime highs around 25°C and nights near 14°C. Worth packing: light clothes, rain gear and sun protection. About 12 days see rain.

light clothesrain gearsun protection

UV index in Aguascalientes in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 13 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Aguascalientes peaks around April 23 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 17 at about 7 (high).

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)	8	10	12	14	14	14	13	13	13	10	8	7
Level	Very high	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Very high	High

	UV index (midday)	Level
Jan	8	Very high
Feb	10	Extreme
Mar	12	Extreme
Apr	14	Extreme
May	14	Extreme
Jun	14	Extreme
Jul	13	Extreme
Aug	13	Extreme
Sep	13	Extreme
Oct	10	Extreme
Nov	8	Very high
Dec	7	High

Air quality in Aguascalientes 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 Aguascalientes is worst in May — around 29 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

Seasonal pattern from CAMS reanalysis, scaled to Aguascalientes's WHO annual average of 25 µg/m³.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
PM2.5 (µg/m³)	25	24	23	24	29	24	27	25	27	22	24	26
Level	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate

	PM2.5 (µg/m³)	Level
Jan	25	Moderate
Feb	24	Moderate
Mar	23	Moderate
Apr	24	Moderate
May	29	Moderate
Jun	24	Moderate
Jul	27	Moderate
Aug	25	Moderate
Sep	27	Moderate
Oct	22	Moderate
Nov	24	Moderate
Dec	26	Moderate

Location & terrain

Where is Aguascalientes?

Aguascalientes sits at 21.9°N, 102.3°W, 1,885 m above sea level, in Mexico. The nearest listed city is Jesús María, 11 km away.

Topography around Aguascalientes

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Aguascalientes.

Within 3 km, the terrain around Aguascalientes has only modest variations in elevation — a maximum elevation change of 116 m around an average of 1,885 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 634 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,680 m.

The land around Aguascalientes is covered by artificial surfaces (90%) within 3 km, shrubs (41%), cropland (25%) and artificial surfaces (20%) within 16 km, and shrubs (54%) and cropland (26%) within 80 km.

3 km

116 m

artificial surfaces 90%

16 km

634 m

shrubs 41%

80 km

1,680 m

shrubs 54%

treesshrubsgrasslandcroplandartificial surfacesbare terrain

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

September weather nearby: Jesús María 11 km · San Francisco de los Romo 21 km · Pabellón de Arteaga 29 km · Rincón de Romos 39 km · Villa Hidalgo 39 km · Encarnación de Díaz 40 km · Calvillo 45 km · Loreto 53 km

Mexico travel facts

Travel advisory: Level 2; Exercise Increased Caution
Power plugs: Type A / B; 120 / 127 V · 60 Hz
Prices: ≈ 54% of US; price level, 2025
GDP per capita: $13,889; 2025
Happiness: 7.0 / 10; World Happiness, 2025
Safe drinking water: 43%; of population, 2024
Homicide rate: 24.9; per 100k, 2023
Road deaths: 12.8; per 100k/yr, 2019
Income group: Upper middle; World Bank
English: Very low; EF EPI 440
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 Aguascalientes (21.8826°, -102.2843°, elevation 1,885 m), 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 (°C)	Avg low (°C)
1	26	15
2	26	15
3	25	15
4	25	15
5	25	15
6	25	15
7	25	15
8	25	15
9	25	15
10	25	15
11	25	15
12	25	15
13	25	15
14	25	15
15	25	14
16	25	14
17	25	14
18	25	14
19	25	14
20	25	14
21	25	14
22	25	14
23	25	14
24	25	14
25	25	14
26	25	14
27	25	14
28	25	14
29	25	14
30	25	14

	Clearer (%)	Cloudier (%)
1	46	54
2	46	54
3	45	55
4	45	55
5	45	55
6	45	55
7	44	56
8	45	55
9	45	55
10	46	54
11	46	54
12	46	54
13	46	54
14	47	53
15	47	53
16	47	53
17	47	53
18	47	53
19	49	51
20	49	51
21	49	51
22	49	51
23	50	50
24	50	50
25	50	50
26	51	49
27	52	48
28	52	48
29	53	47
30	54	46

	Rain chance (%)
1	45
2	45
3	45
4	45
5	46
6	46
7	46
8	46
9	45
10	45
11	45
12	44
13	44
14	43
15	43
16	42
17	41
18	40
19	39
20	38
21	37
22	35
23	34
24	32
25	31
26	30
27	29
28	28
29	27
30	27

	Dry (%)	Comfortable (%)	Humid (%)
1	49	45	5
2	49	46	5
3	48	46	6
4	48	47	6
5	47	47	6
6	47	47	6
7	47	47	6
8	47	47	6
9	47	47	6
10	47	47	6
11	48	46	6
12	49	46	6
13	49	45	6
14	50	44	6
15	50	44	6
16	51	43	6
17	52	42	6
18	52	42	6
19	53	41	6
20	54	40	6
21	56	39	5
22	57	38	5
23	58	37	5
24	60	36	4
25	62	34	4
26	63	33	4
27	65	32	3
28	66	31	3
29	67	30	3
30	69	29	2

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

	Clearer (%)	Cloudier (%)
1	46	54
2	46	54
3	45	55
4	45	55
5	45	55
6	45	55
7	44	56
8	45	55
9	45	55
10	46	54
11	46	54
12	46	54
13	46	54
14	47	53
15	47	53
16	47	53
17	47	53
18	47	53
19	49	51
20	49	51
21	49	51
22	49	51
23	50	50
24	50	50
25	50	50
26	51	49
27	52	48
28	52	48
29	53	47
30	54	46

	Rain chance (%)
1	45
2	45
3	45
4	45
5	46
6	46
7	46
8	46
9	45
10	45
11	45
12	44
13	44
14	43
15	43
16	42
17	41
18	40
19	39
20	38
21	37
22	35
23	34
24	32
25	31
26	30
27	29
28	28
29	27
30	27

	Dry (%)	Comfortable (%)	Humid (%)
1	49	45	5
2	49	46	5
3	48	46	6
4	48	47	6
5	47	47	6
6	47	47	6
7	47	47	6
8	47	47	6
9	47	47	6
10	47	47	6
11	48	46	6
12	49	46	6
13	49	45	6
14	50	44	6
15	50	44	6
16	51	43	6
17	52	42	6
18	52	42	6
19	53	41	6
20	54	40	6
21	56	39	5
22	57	38	5
23	58	37	5
24	60	36	4
25	62	34	4
26	63	33	4
27	65	32	3
28	66	31	3
29	67	30	3
30	69	29	2

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

	Clearer (%)	Cloudier (%)
1	46	54
2	46	54
3	45	55
4	45	55
5	45	55
6	45	55
7	44	56
8	45	55
9	45	55
10	46	54
11	46	54
12	46	54
13	46	54
14	47	53
15	47	53
16	47	53
17	47	53
18	47	53
19	49	51
20	49	51
21	49	51
22	49	51
23	50	50
24	50	50
25	50	50
26	51	49
27	52	48
28	52	48
29	53	47
30	54	46

	Rain chance (%)
1	45
2	45
3	45
4	45
5	46
6	46
7	46
8	46
9	45
10	45
11	45
12	44
13	44
14	43
15	43
16	42
17	41
18	40
19	39
20	38
21	37
22	35
23	34
24	32
25	31
26	30
27	29
28	28
29	27
30	27

	Dry (%)	Comfortable (%)	Humid (%)
1	49	45	5
2	49	46	5
3	48	46	6
4	48	47	6
5	47	47	6
6	47	47	6
7	47	47	6
8	47	47	6
9	47	47	6
10	47	47	6
11	48	46	6
12	49	46	6
13	49	45	6
14	50	44	6
15	50	44	6
16	51	43	6
17	52	42	6
18	52	42	6
19	53	41	6
20	54	40	6
21	56	39	5
22	57	38	5
23	58	37	5
24	60	36	4
25	62	34	4
26	63	33	4
27	65	32	3
28	66	31	3
29	67	30	3
30	69	29	2