Atlacomulco de Fabela weather in September

In September, Atlacomulco de Fabela sees average daytime highs of 20°C and overnight lows near 10°C, with 190 mm of rain across 19.6 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 20°C through the month. The sky is clear or mostly clear about 9% 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 Atlacomulco de Fabela's 12th-clearest and 8th-windiest month. For the whole year in context, see Atlacomulco de Fabela's year-round climate.

Daytime high
20°
7th warmest
Overnight low
10°
10th coldest
Rainfall
190 mm
19.6 wet days
Daylight
12 h 06 min
6:30 AM – 6:37 PM
Cloud cover
76%
12th clearest
Wind
7 km/h
8th windiest
Solar energy
5.13 kWh/m²
Travel score
4.8
out of 10

Atlacomulco de Fabela is municipal seat of Atlacomulco, State of México, Mexico.

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 20°C through the month.

A typical September day in Atlacomulco de Fabela reaches about 20°C in the afternoon and slips back to 10°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 18°C and 22°C. Set against its neighbours, September runs on par with August and on par with October.

10°15°20°25°151015202530
Avg high (°C)Avg low (°C)
12011
22011
32011
42011
52011
62011
72011
82011
92011
102011
112011
122011
132011
142011
152011
162010
172010
182010
192010
202010
212010
222010
232010
242010
252010
262010
272010
282010
292010
302010

Atlacomulco de Fabela 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
Jan18° / 193.610.97.2
Feb20° / 183.811.37.7
Mar22° / 184.411.98.0
Apr24° / 316.412.47.7
May24° / 10°8112.212.96.8
Jun22° / 11°18717.713.25.3
Jul21° / 10°23723.213.14.5
Aug21° / 10°21921.912.74.5
Sep20° / 10°19019.612.14.8
Oct20° / 8111.111.56.1
Nov19° / 285.111.17.2
Dec19° / 92.110.87.5

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 9% of the time in September, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 14% of September, with mostly cloudy or overcast conditions the remaining 76%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
11882
21882
31981
41981
52080
62080
72179
82179
92179
102179
112278
122278
132377
142476
152476
162575
172575
182575
192476
202476
212476
222575
232674
242773
252773
262872
272872
282872
292971
302971

Chance of precipitation in September

Any precipitation

Atlacomulco de Fabela gets around 190 mm of rain over 19.6 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 64% and peaks near 71% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%80%151015202530
Rain chance (%)
171
270
370
470
570
670
770
869
969
1069
1168
1268
1367
1467
1566
1666
1765
1865
1964
2063
2162
2261
2360
2458
2557
2655
2754
2853
2952
3051

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 96% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)
1982
2973
3973
4973
5973
6973
7964
8964
9964
10964
11964
12955
13955
14955
15955
16955
17955
18955
19955
20955
21955
22955
23955
24955
25964
26964
27964
28964
29973
30973

Wind in September

Winds average 7 km/h in September.

Across September, daily wind ranges from about 6 km/h on the calmest days to 7 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
16calm
26calm
36calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm

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 6:27 AM to 6:34 AM, and sunset from 6:51 PM to 6:24 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.46:276:51
212.46:286:50
312.46:286:49
412.36:286:48
512.36:286:47
612.36:286:47
712.36:296:46
812.36:296:45
912.26:296:44
1012.26:296:43
1112.26:296:42
1212.26:306:41
1312.26:306:40
1412.16:306:39
1512.16:306:38
1612.16:306:37
1712.16:316:36
1812.16:316:35
1912.16:316:34
2012.06:316:33
2112.06:326:32
2212.06:326:31
2312.06:326:31
2412.06:326:30
2511.96:326:29
2611.96:336:28
2711.96:336:27
2811.96:336:26
2911.96:336:25
3011.86:346:24

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.13 kWh/m².

For context, solar energy here swings from a low near 4.95 kWh/m² to a high of 7.37 kWh/m² in April across the year — September's 5.13 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.3Bright
25.3Bright
35.2Bright
45.2Bright
55.2Bright
65.2Bright
75.2Bright
85.2Bright
95.2Bright
105.2Bright
115.2Bright
125.2Bright
135.2Bright
145.2Bright
155.2Bright
165.2Bright
175.2Bright
185.2Bright
195.2Bright
205.2Bright
215.2Bright
225.2Bright
235.1Bright
245.1Bright
255.1Bright
265.1Bright
275.1Bright
285.1Bright
295.1Bright
305.1Bright
Planning a trip in September

Hazard calendar for Atlacomulco de Fabela

In seasonPeak

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

Atlacomulco de Fabela'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 Atlacomulco de Fabela?

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

4.8
Sightseeing
10th-best month of the year
2.6
Beach & pool
12th-best month of the year

September is a reasonable time to visit Atlacomulco de Fabela for sightseeing.

What to pack for Atlacomulco de Fabela in September

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

In September, Atlacomulco de Fabela sees daytime highs around 20°C and nights near 10°C. Pack rain gear. Worth having: sun protection. About 20 days see rain.

rain gearsun protection

UV index in Atlacomulco de Fabela in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 12 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Atlacomulco de Fabela peaks around June 14 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 15 at about 8 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeVery highJun 14UV 14Dec 15UV 8
UV index (midday)Level
Jan9Very high
Feb11Extreme
Mar14Extreme
Apr14Extreme
May13Extreme
Jun15Extreme
Jul12Extreme
Aug14Extreme
Sep12Extreme
Oct11Extreme
Nov9Very high
Dec8Very high

Air quality in Atlacomulco de Fabela 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 Atlacomulco de Fabela is worst in December — around 79 µg/m³ PM2.5 (unhealthy), and holds fairly steady the rest of the year.

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

0306090JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyPoorUnhealthyDec 1078 µg/m³Apr 1353 µg/m³
PM2.5 (µg/m³)Level
Jan67Unhealthy
Feb62Unhealthy
Mar55Poor
Apr52Poor
May57Unhealthy
Jun59Unhealthy
Jul69Unhealthy
Aug65Unhealthy
Sep70Unhealthy
Oct66Unhealthy
Nov77Unhealthy
Dec79Unhealthy
Location & terrain

Where is Atlacomulco de Fabela?

Atlacomulco de Fabela sits at 19.8°N, 99.9°W, 2,576 m above sea level, in Mexico. The nearest listed city is San Pablo Autopan, 54 km away.

Topography around Atlacomulco de Fabela

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

Within 3 km, the terrain around Atlacomulco de Fabela has significant variations in elevation — a maximum elevation change of 463 m around an average of 2,579 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,489 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,624 m.

The land around Atlacomulco de Fabela is covered by artificial surfaces (34%), cropland (25%) and grassland (24%) within 3 km, cropland (39%), trees (28%) and grassland (23%) within 16 km, and trees (32%), cropland (27%) and grassland (20%) within 80 km.

3 km
463 m
16 km
1,489 m
80 km
3,624 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: San Pablo Autopan 54 km · San Andrés Cuexcontitlán 56 km · Tepeji del Río de Ocampo 57 km · Xonacatlán 57 km · San Francisco Tlalcilalcalpan 57 km · San José Guadalupe Otzacatipan 59 km · Zinacantepec 59 km · San Mateo Otzacatipan 59 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 Atlacomulco de Fabela (19.7992°, -99.875°, elevation 2,576 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).