Nochistlán de Mejía weather in September

In September, Nochistlán de Mejía sees average daytime highs of 26°C and overnight lows near 15°C, with 150 mm of rain across 17.5 wet days and about 12.1 hours of daylight. It is the 7th-warmest and 3rd-wettest month of the year here.

Day-to-day highs hold fairly steady near 26°C through the month. The sky is clear or mostly clear about 19% of the time in September, and the air most often feels comfortable.

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 Nochistlán de Mejía's 12th-clearest and 9th-windiest month. For the whole year in context, see Nochistlán de Mejía's year-round climate.

Daytime high
26°
7th warmest
Overnight low
15°
8th coldest
Rainfall
150 mm
17.5 wet days
Daylight
12 h 06 min
6:42 AM – 6:49 PM
Cloud cover
67%
12th clearest
Wind
7 km/h
9th windiest
Solar energy
5.62 kWh/m²
Travel score
5.5
out of 10

Nochistlán de Mejía is city and municipality in Zacatecas, Mexico.

Founded
1532

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

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 26°C through the month.

A typical September day in Nochistlán de Mejía reaches about 26°C in the afternoon and slips back to 15°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 23°C and 28°C. Set against its neighbours, September runs on par with August and on par with October.

10°15°20°25°30°151015202530
Avg high (°C)Avg low (°C)
12616
22616
32616
42615
52615
62615
72615
82615
92615
102615
112615
122615
132615
142615
152615
162615
172615
182615
192615
202615
212615
222615
232615
242615
252615
262615
272615
282615
292615
302615

Nochistlán de Mejía weather by month

How September compares with the rest of the year at a glance. September is the 7th-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan22° / 192.410.88.2
Feb24° / 131.711.38.7
Mar27° / 11°70.911.88.3
Apr29° / 13°51.212.56.7
May31° / 16°275135.4
Jun29° / 17°14915.613.34.8
Jul26° / 16°20021.513.24.9
Aug26° / 16°17720.512.75.1
Sep26° / 15°15017.512.15.5
Oct26° / 13°557.911.57.2
Nov24° / 10°142.6118.6
Dec23° / 81.310.78.5

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 19% of the time in September, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 22% of September, with mostly cloudy or overcast conditions the remaining 60%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
13763
23763
33862
43862
53862
63862
73862
83862
93862
103961
113961
123961
133961
143961
153961
164060
174060
184060
194060
204060
214060
224159
234159
244258
254357
264357
274456
284456
294654
304654

Chance of precipitation in September

Any precipitation

Nochistlán de Mejía gets around 150 mm of rain over 17.5 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 58% and peaks near 69% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%80%151015202530
Rain chance (%)
169
269
369
468
568
667
766
866
965
1064
1163
1262
1361
1460
1559
1658
1757
1856
1955
2054
2153
2252
2350
2449
2548
2646
2745
2844
2943
3042

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

Most of September feels comfortable — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, September lands in the comfortable band about 50% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)
1115336
2115336
3125236
4125236
5125236
6135235
7135235
8145234
9145234
10155233
11165133
12165133
13175132
14185032
15185131
16195031
17205030
18205129
19215128
20235027
21245026
22264925
23284824
24294823
25314722
26334620
27354619
28374618
29384516
30394615

Wind in September

Winds average 7 km/h in September.

Across September, daily wind ranges from about 7 km/h on the calmest days to 8 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
17calm
27calm
37calm
47calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
288calm
298calm
308calm

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 6:38 AM to 6:46 AM, and sunset from 7:04 PM to 6:36 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.46:387:04
212.46:387:03
312.46:397:02
412.46:397:01
512.36:397:00
612.36:406:59
712.36:406:58
812.36:406:57
912.36:406:56
1012.26:416:55
1112.26:416:54
1212.26:416:53
1312.26:416:52
1412.26:426:51
1512.16:426:50
1612.16:426:49
1712.16:426:48
1812.16:436:47
1912.16:436:46
2012.06:436:45
2112.06:436:44
2212.06:446:43
2312.06:446:42
2412.06:446:41
2511.96:446:40
2611.96:456:39
2711.96:456:38
2811.96:456:37
2911.86:466:36
3011.86:466:36

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.62 kWh/m².

For context, solar energy here swings from a low near 4.78 kWh/m² to a high of 7.71 kWh/m² in May across the year — September's 5.62 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.8Bright
25.8Bright
35.8Bright
45.8Bright
55.8Bright
65.8Bright
75.7Bright
85.7Bright
95.7Bright
105.7Bright
115.7Bright
125.7Bright
135.7Bright
145.7Bright
155.7Bright
165.7Bright
175.6Bright
185.6Bright
195.6Bright
205.6Bright
215.6Bright
225.6Bright
235.6Bright
245.6Bright
255.6Bright
265.6Bright
275.5Bright
285.5Bright
295.5Bright
305.5Bright
Planning a trip in September

Hazard calendar for Nochistlán de Mejía

In seasonPeak

In September, Nochistlán de Mejía sits inside its monsoon season. The full year is below, with each hazard's peak months called out.

Nochistlán de Mejía's monsoon runs June–September, when most of the year's rain falls.

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

Is September a good time to visit Nochistlán de Mejía?

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

5.5
Sightseeing
8th-best month of the year
5.2
Beach & pool
10th-best month of the year

September is a reasonable time to visit Nochistlán de Mejía for sightseeing.

What to pack for Nochistlán de Mejía in September

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

In September, Nochistlán de Mejía sees daytime highs around 26°C and nights near 15°C. Pack rain gear. Worth having: light clothes and sun protection. About 18 days see rain.

rain gearlight clothessun protection

UV index in Nochistlán de Mejía 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 Nochistlán de Mejía peaks around April 23 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 16 at about 7 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeVery highApr 23UV 14Dec 16UV 7
UV index (midday)Level
Jan8Very high
Feb10Extreme
Mar13Extreme
Apr14Extreme
May14Extreme
Jun13Extreme
Jul13Extreme
Aug13Extreme
Sep13Extreme
Oct10Extreme
Nov8Very high
Dec7High

Air quality in Nochistlán de Mejía 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 Nochistlán de Mejía is worst in May — around 23 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateMay 1223 µg/m³Jun 2316 µg/m³
PM2.5 (µg/m³)Level
Jan22Moderate
Feb21Moderate
Mar20Moderate
Apr21Moderate
May23Moderate
Jun16Moderate
Jul16Moderate
Aug17Moderate
Sep19Moderate
Oct18Moderate
Nov20Moderate
Dec22Moderate
Location & terrain

Where is Nochistlán de Mejía?

Nochistlán de Mejía sits at 21.4°N, 102.8°W, 1,866 m above sea level, in Mexico. The nearest listed city is Teocaltiche, 29 km away.

Topography around Nochistlán de Mejía

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

Within 3 km, the terrain around Nochistlán de Mejía has only modest variations in elevation — a maximum elevation change of 170 m around an average of 1,881 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,068 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,091 m.

The land around Nochistlán de Mejía is covered by cropland (37%) and shrubs (26%) within 3 km, shrubs (46%) and grassland (27%) within 16 km, and shrubs (46%) and grassland (21%) within 80 km.

3 km
170 m
16 km
1,068 m
80 km
2,091 m
treesshrubsgrasslandcroplandartificial surfaces
September weather nearby: Teocaltiche 29 km · Villa Hidalgo 44 km · Jalostotitlán 46 km · San Juan de los Lagos 55 km · Calvillo 55 km · San Miguel el Alto 59 km · Tepatitlán de Morelos 61 km · Encarnación de Díaz 65 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
Catholic 78%no religion 11%other Evangelical Churches 8%Jehovah Witness 1%

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 Nochistlán de Mejía (21.3636°, -102.8475°, elevation 1,866 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).