Tlaltenango de Sánchez Román weather in September

In September, Tlaltenango de Sánchez Román sees average daytime highs of 24°C and overnight lows near 14°C, with 174 mm of rain across 18.8 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 24°C through the month. The sky is clear or mostly clear about 18% 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 Tlaltenango de Sánchez Román's 12th-clearest and 9th-windiest month. For the whole year in context, see Tlaltenango de Sánchez Román's year-round climate.

Daytime high
24°
7th warmest
Overnight low
14°
9th coldest
Rainfall
174 mm
18.8 wet days
Daylight
12 h 06 min
6:44 AM – 6:51 PM
Cloud cover
68%
12th clearest
Wind
5 km/h
9th windiest
Solar energy
5.54 kWh/m²
Travel score
5.5
out of 10

Tlaltenango de Sánchez Román is human settlement in Mexico.

Founded
1542

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 24°C through the month.

A typical September day in Tlaltenango de Sánchez Román reaches about 24°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 26°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)
12414
22414
32414
42414
52414
62414
72414
82414
92414
102414
112414
122414
132414
142414
152414
162414
172414
182414
192414
202414
212413
222413
232413
242413
252413
262413
272413
282413
292413
302413

Tlaltenango de Sánchez Román 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
Jan20° / 243.410.87.6
Feb22° / 182.211.38.4
Mar25° / 102.211.88.6
Apr28° / 10°92.312.57.7
May29° / 13°306.6136.2
Jun27° / 15°16916.913.35.2
Jul25° / 14°24122.713.24.9
Aug25° / 14°20721.712.75.1
Sep24° / 14°17418.812.15.5
Oct24° / 11°629.111.57.3
Nov23° / 183.1118.3
Dec21° / 142.610.77.8

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 18% of the time in September, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 20% of September, with mostly cloudy or overcast conditions the remaining 62%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
13466
23367
33367
43268
53367
63466
73466
83565
93565
103763
113862
123862
133862
143961
153961
163961
173961
183961
193961
203961
214060
224159
234159
244159
254258
264357
274456
284555
294555
304654

Chance of precipitation in September

Any precipitation

Tlaltenango de Sánchez Román gets around 174 mm of rain over 18.8 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 61% and peaks near 70% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%80%151015202530
Rain chance (%)
170
270
370
470
570
670
769
869
968
1068
1167
1267
1366
1465
1564
1663
1762
1861
1960
2059
2158
2257
2355
2454
2552
2650
2749
2848
2946
3045

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 61% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)
1146818
2156718
3156718
4156718
5166618
6166618
7166618
8176518
9176518
10186517
11196318
12196318
13206317
14206317
15216217
16226117
17226216
18236116
19246115
20256015
21275914
22285913
23305812
24325612
25335611
26355510
2737549
2839538
2940537
3042526

Wind in September

Winds average 5 km/h in September.

Across September, daily wind ranges from about 5 km/h on the calmest days to 5 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
155calm
165calm
175calm
185calm
195calm
205calm
215calm
225calm
235calm
245calm
255calm
265calm
275calm
285calm
295calm
305calm

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 6:40 AM to 6:48 AM, and sunset from 7:06 PM to 6:37 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.46:407:06
212.46:407:05
312.46:407:04
412.46:417:03
512.46:417:02
612.36:417:01
712.36:417:00
812.36:426:59
912.36:426:58
1012.36:426:57
1112.26:426:56
1212.26:436:55
1312.26:436:54
1412.26:436:53
1512.16:446:52
1612.16:446:51
1712.16:446:50
1812.16:446:49
1912.16:456:48
2012.06:456:47
2112.06:456:46
2212.06:456:45
2312.06:466:44
2412.06:466:43
2511.96:466:42
2611.96:476:41
2711.96:476:40
2811.96:476:39
2911.86:486:38
3011.86:486:37

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.54 kWh/m².

For context, solar energy here swings from a low near 4.71 kWh/m² to a high of 7.69 kWh/m² in April across the year — September's 5.54 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.7Bright
25.7Bright
35.7Bright
45.7Bright
55.7Bright
65.7Bright
75.6Bright
85.6Bright
95.6Bright
105.6Bright
115.6Bright
125.6Bright
135.6Bright
145.6Bright
155.6Bright
165.6Bright
175.6Bright
185.6Bright
195.5Bright
205.5Bright
215.5Bright
225.5Bright
235.5Bright
245.5Bright
255.5Bright
265.5Bright
275.5Bright
285.5Bright
295.5Bright
305.5Bright
Planning a trip in September

Hazard calendar for Tlaltenango de Sánchez Román

In seasonPeak

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

Tlaltenango de Sánchez Román'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 Tlaltenango de Sánchez Román?

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

5.5
Sightseeing
9th-best month of the year
4.8
Beach & pool
8th-best month of the year

September is a reasonable time to visit Tlaltenango de Sánchez Román for sightseeing.

What to pack for Tlaltenango de Sánchez Román in September

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

In September, Tlaltenango de Sánchez Román sees daytime highs around 24°C and nights near 14°C. Pack rain gear. Worth having: light clothes and sun protection. About 19 days see rain.

rain gearlight clothessun protection

UV index in Tlaltenango de Sánchez Román 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 Tlaltenango de Sánchez Román peaks around April 22 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.

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeVery highApr 22UV 14Dec 17UV 7
UV index (midday)Level
Jan8Very high
Feb10Extreme
Mar12Extreme
Apr14Extreme
May14Extreme
Jun13Extreme
Jul13Extreme
Aug13Extreme
Sep13Extreme
Oct10Extreme
Nov8Very high
Dec7High

Air quality in Tlaltenango de Sánchez Román 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 Tlaltenango de Sánchez Román is worst in May — around 21 µg/m³ PM2.5 (moderate), about 5.0× the cleanest month (January, 4 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodMay 1820 µg/m³Jan 204 µg/m³
PM2.5 (µg/m³)Level
Jan4Good
Feb5Good
Mar5Good
Apr9Good
May21Moderate
Jun13Moderate
Jul9Good
Aug9Good
Sep9Good
Oct6Good
Nov5Good
Dec5Good
Location & terrain

Where is Tlaltenango de Sánchez Román?

Tlaltenango de Sánchez Román sits at 21.8°N, 103.3°W, 1,674 m above sea level, in Mexico. The nearest listed city is Calvillo, 61 km away.

Topography around Tlaltenango de Sánchez Román

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Tlaltenango de Sánchez Román.

Within 3 km, the terrain around Tlaltenango de Sánchez Román has only modest variations in elevation — a maximum elevation change of 99 m around an average of 1,702 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,025 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,214 m.

The land around Tlaltenango de Sánchez Román is covered by shrubs (38%) and cropland (26%) within 3 km, shrubs (49%) and grassland (20%) within 16 km, and shrubs (54%) and grassland (21%) within 80 km.

3 km
99 m
16 km
1,025 m
80 km
2,214 m
treesshrubsgrasslandcroplandartificial surfaces
September weather nearby: Calvillo 61 km · Nochistlán de Mejía 66 km · Villa Hidalgo 75 km · Teocaltiche 85 km · Jesús María 101 km · Jerez de García Salinas 102 km · Aguascalientes 106 km · Jalostotitlán 111 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 Tlaltenango de Sánchez Román (21.7813°, -103.3044°, elevation 1,674 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).