Chignahuapan weather in September

In September, Chignahuapan sees average daytime highs of 20°C and overnight lows near 11°C, with 220 mm of rain across 26 wet days and about 12.1 hours of daylight. It is the 7th-warmest and 1st-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 4% 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 Chignahuapan's 12th-clearest and 5th-windiest month. For the whole year in context, see Chignahuapan's year-round climate.

Daytime high
20°
7th warmest
Overnight low
11°
11th coldest
Rainfall
220 mm
26 wet days
Daylight
12 h 06 min
6:23 AM – 6:30 PM
Cloud cover
81%
12th clearest
Wind
6 km/h
5th windiest
Solar energy
4.88 kWh/m²
Travel score
3.7
out of 10

Chignahuapan is municipal seat of Chignahuapan, State of Puebla, 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 Chignahuapan reaches about 20°C in the afternoon and slips back to 11°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 17°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
162011
172011
182011
192011
202011
211911
221911
231911
241911
251911
261911
271911
281911
291910
301910

Chignahuapan weather by month

How September compares with the rest of the year at a glance. September is the 7th-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan17° / 297.110.96.0
Feb19° / 317.411.36.6
Mar21° / 5812.111.96.3
Apr22° / 10°911712.45.6
May22° / 11°10119.112.95.4
Jun21° / 11°1972313.24.4
Jul20° / 11°19928.813.13.6
Aug20° / 11°21428.712.73.6
Sep20° / 11°2202612.13.7
Oct19° / 14917.911.54.9
Nov18° / 5810.711.15.8
Dec17° / 246.610.86.2

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 4% of the time in September, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 12% of September, with mostly cloudy or overcast conditions the remaining 84%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
11585
21585
31585
41585
51585
61585
71585
81684
91585
101585
111585
121585
131585
141585
151585
161585
171585
181486
191585
201585
211684
221684
231684
241783
251783
261882
271981
281981
292080
302080

Chance of precipitation in September

Any precipitation

Chignahuapan gets around 220 mm of rain over 26 wet days in September, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 86% and peaks near 91% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%80%100%151015202530
Rain chance (%)
191
291
391
491
590
690
790
890
990
1089
1189
1289
1388
1488
1588
1687
1787
1886
1986
2085
2184
2283
2382
2481
2580
2679
2778
2877
2976
3075

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 74% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)
17228
27129
37129
47030
57030
67030
77030
87030
97030
107129
117129
127129
137228
147228
157327
167327
177327
187426
197426
207525
217624
227624
237723
247822
257921
268020
278119
288218
298317
308317

Wind in September

Winds average 6 km/h in September.

Across September, daily wind ranges from about 5 km/h on the calmest days to 6 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
15calm
25calm
35calm
45calm
55calm
65calm
75calm
85calm
95calm
105calm
115calm
125calm
135calm
145calm
156calm
166calm
176calm
186calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm

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 6:20 AM to 6:26 AM, and sunset from 6:44 PM to 6:17 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.46:206:44
212.46:206:43
312.46:206:42
412.36:216:41
512.36:216:40
612.36:216:39
712.36:216:38
812.36:216:37
912.26:226:36
1012.26:226:35
1112.26:226:35
1212.26:226:34
1312.26:226:33
1412.26:236:32
1512.16:236:31
1612.16:236:30
1712.16:236:29
1812.16:246:28
1912.16:246:27
2012.06:246:26
2112.06:246:25
2212.06:246:24
2312.06:256:23
2412.06:256:22
2511.96:256:21
2611.96:256:20
2711.96:266:19
2811.96:266:18
2911.96:266:18
3011.86:266:17

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.88 kWh/m².

For context, solar energy here swings from a low near 4.33 kWh/m² to a high of 6.48 kWh/m² in May across the year — September's 4.88 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.2Bright
25.2Bright
35.2Bright
45.1Bright
55.1Bright
65.1Bright
75.1Bright
85.0Bright
95.0Bright
105.0Bright
115.0Bright
125.0Bright
135.0Bright
144.9Bright
154.9Bright
164.9Bright
174.9Bright
184.9Bright
194.9Bright
204.9Bright
214.8Bright
224.8Bright
234.8Bright
244.8Bright
254.8Bright
264.8Bright
274.8Bright
284.7Bright
294.7Bright
304.7Bright
Planning a trip in September

Hazard calendar for Chignahuapan

In seasonPeak

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

Chignahuapan's monsoon runs May–October, 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 Chignahuapan?

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

3.7
Sightseeing
10th-best month of the year
1.8
Beach & pool
10th-best month of the year

September is a weaker month for outdoor sightseeing in Chignahuapan.

What to pack for Chignahuapan in September

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

In September, Chignahuapan sees daytime highs around 20°C and nights near 11°C. Pack rain gear. Worth having: sun protection. About 26 days see rain.

rain gearsun protection

UV index in Chignahuapan in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 11 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Chignahuapan peaks around April 12 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 17 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 highApr 12UV 14Dec 17UV 8
UV index (midday)Level
Jan8Very high
Feb11Extreme
Mar13Extreme
Apr14Extreme
May10Very high
Jun14Extreme
Jul12Extreme
Aug14Extreme
Sep11Extreme
Oct10Extreme
Nov8Very high
Dec8Very high

Air quality in Chignahuapan 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 Chignahuapan is worst in December — around 165 µg/m³ PM2.5 (very unhealthy), and holds fairly steady the rest of the year.

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

0306090120150180JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyVery unhealthyDec 13163 µg/m³Aug 15114 µg/m³
PM2.5 (µg/m³)Level
Jan137Unhealthy
Feb131Unhealthy
Mar122Unhealthy
Apr120Unhealthy
May143Unhealthy
Jun121Unhealthy
Jul118Unhealthy
Aug113Unhealthy
Sep120Unhealthy
Oct121Unhealthy
Nov155Very unhealthy
Dec165Very unhealthy
Location & terrain

Where is Chignahuapan?

Chignahuapan sits at 19.8°N, 98.0°W, 2,291 m above sea level, in Mexico. The nearest listed city is Zacatlán, 13 km away.

Topography around Chignahuapan

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

Within 3 km, the terrain around Chignahuapan has significant variations in elevation — a maximum elevation change of 273 m around an average of 2,301 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,848 m; within 80 km, extreme variations in elevation — a maximum elevation change of 4,346 m.

The land around Chignahuapan is covered by grassland (38%) and cropland (32%) within 3 km, trees (51%) and cropland (25%) within 16 km, and trees (47%) and cropland (26%) within 80 km.

3 km
273 m
16 km
1,848 m
80 km
4,346 m
treesshrubsgrasslandcroplandartificial surfacesbare terrain
September weather nearby: Zacatlán 13 km · Cuautepec de Hinojosa 36 km · Huauchinango 37 km · Santiago Tulantepec 40 km · Tulancingo 44 km · Tetla 45 km · Apan 46 km · Apizaco 49 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 Chignahuapan (19.8387°, -98.0317°, elevation 2,291 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).