San Rafael Tlanalapan weather in September

In September, San Rafael Tlanalapan sees average daytime highs of 21°C and overnight lows near 11°C, with 160 mm of rain across 20.3 wet days and about 12.1 hours of daylight. It is the 9th-warmest and 2nd-wettest month of the year here.

Day-to-day highs hold fairly steady near 21°C through the month. The sky is clear or mostly clear about 8% 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 San Rafael Tlanalapan's 12th-clearest and 8th-windiest month. For the whole year in context, see San Rafael Tlanalapan's year-round climate.

Daytime high
21°
9th warmest
Overnight low
11°
11th coldest
Rainfall
160 mm
20.3 wet days
Daylight
12 h 06 min
6:25 AM – 6:31 PM
Cloud cover
76%
12th clearest
Wind
7 km/h
8th windiest
Solar energy
5.18 kWh/m²
Travel score
4.7
out of 10

San Rafael Tlanalapan is town in Texmelucan Municipality, 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 21°C through the month.

A typical September day in San Rafael Tlanalapan reaches about 21°C in the afternoon and slips back to 11°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 23°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)
12111
22111
32111
42111
52111
62111
72111
82111
92111
102111
112111
122111
132111
142111
152111
162111
172111
182111
192111
202111
212111
222111
232111
242111
252111
262110
272110
282110
292110
302110

San Rafael Tlanalapan weather by month

How September compares with the rest of the year at a glance. September is the 9th-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan19° / 214.2117.4
Feb21° / 214.411.37.7
Mar22° / 448.411.97.4
Apr23° / 781212.46.6
May23° / 10°12116.812.95.9
Jun22° / 11°1731913.15.1
Jul21° / 10°14520.5134.9
Aug21° / 11°14920.112.74.9
Sep21° / 11°16020.312.14.7
Oct21° / 8412.411.66.1
Nov21° / 356.311.17.2
Dec20° / 132.710.97.7

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 8% of the time in September, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 16% of September, with mostly cloudy or overcast conditions the remaining 76%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
12278
22278
32179
42179
52278
62278
72278
82278
92377
102377
112377
122377
132377
142377
152476
162476
172476
182575
192476
202476
212476
222476
232575
242674
252575
262674
272674
282872
292872
302971

Chance of precipitation in September

Any precipitation

San Rafael Tlanalapan gets around 160 mm of rain over 20.3 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 66% and peaks near 72% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%80%151015202530
Rain chance (%)
170
271
371
472
572
672
772
872
972
1071
1171
1270
1369
1468
1567
1667
1766
1866
1965
2065
2164
2263
2362
2461
2560
2659
2758
2858
2957
3056

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 95% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)
1964
2955
3955
4955
5955
6946
7946
8946
9946
10946
11946
12946
13946
14946
15946
16946
17946
18946
19946
20946
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 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
258calm
268calm
278calm
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 6:22 AM to 6:28 AM, and sunset from 6:45 PM to 6:19 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.46:226:45
212.46:226:44
312.36:226:43
412.36:236:42
512.36:236:42
612.36:236:41
712.36:236:40
812.36:236:39
912.26:246:38
1012.26:246:37
1112.26:246:36
1212.26:246:35
1312.26:246:34
1412.16:256:33
1512.16:256:32
1612.16:256:31
1712.16:256:31
1812.16:256:30
1912.16:266:29
2012.06:266:28
2112.06:266:27
2212.06:266:26
2312.06:266:25
2412.06:276:24
2511.96:276:23
2611.96:276:22
2711.96:276:21
2811.96:276:20
2911.96:286:19
3011.86:286:19

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.18 kWh/m².

For context, solar energy here swings from a low near 5.07 kWh/m² to a high of 6.93 kWh/m² in April across the year — September's 5.18 kWh/m² sits near the bottom.

0246151015202530
Solar energy (kWh/m²)Level
15.4Bright
25.4Bright
35.4Bright
45.4Bright
55.3Bright
65.3Bright
75.3Bright
85.3Bright
95.3Bright
105.3Bright
115.3Bright
125.3Bright
135.2Bright
145.2Bright
155.2Bright
165.2Bright
175.2Bright
185.2Bright
195.2Bright
205.2Bright
215.2Bright
225.2Bright
235.2Bright
245.2Bright
255.1Bright
265.1Bright
275.1Bright
285.1Bright
295.1Bright
305.1Bright
Planning a trip in September

Hazard calendar for San Rafael Tlanalapan

In seasonPeak

In September, San Rafael Tlanalapan sits inside its rainy season season. The full year is below, with each hazard's peak months called out.

San Rafael Tlanalapan's rainy season runs April–October, when most of the year's rain falls.

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

Is September a good time to visit San Rafael Tlanalapan?

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

4.7
Sightseeing
12th-best month of the year
2.8
Beach & pool
12th-best month of the year

September is a reasonable time to visit San Rafael Tlanalapan for sightseeing.

What to pack for San Rafael Tlanalapan in September

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

In September, San Rafael Tlanalapan sees daytime highs around 21°C and nights near 11°C. Pack rain gear. Worth having: sun protection. About 20 days see rain.

rain gearsun protection

UV index in San Rafael Tlanalapan 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 San Rafael Tlanalapan peaks around April 11 at about 15 (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.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highApr 11UV 15Dec 15UV 8
UV index (midday)Level
Jan9Very high
Feb12Extreme
Mar14Extreme
Apr15Extreme
May11Extreme
Jun14Extreme
Jul13Extreme
Aug14Extreme
Sep13Extreme
Oct11Extreme
Nov9Very high
Dec8Very high

Air quality in San Rafael Tlanalapan 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 San Rafael Tlanalapan 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 San Rafael Tlanalapan?

San Rafael Tlanalapan sits at 19.3°N, 98.5°W, 2,294 m above sea level, in Mexico. The nearest listed city is San Martin Texmelucan de Labastida, 3.0 km away.

Topography around San Rafael Tlanalapan

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

Within 3 km, the terrain around San Rafael Tlanalapan has only modest variations in elevation — a maximum elevation change of 111 m around an average of 2,300 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,474 m; within 80 km, extreme variations in elevation — a maximum elevation change of 4,248 m.

The land around San Rafael Tlanalapan is covered by cropland (37%) and artificial surfaces (33%) within 3 km, cropland (43%) and trees (32%) within 16 km, and cropland (33%) and trees (28%) within 80 km.

3 km
111 m
16 km
1,474 m
80 km
4,248 m
treesshrubsgrasslandcroplandartificial surfacesbare terrain
September weather nearby: San Martin Texmelucan de Labastida 3.0 km · Moyotzingo 8.0 km · Santa Ana Xalmimilulco 13 km · Huejotzingo 16 km · Tlaxcala 24 km · Zacatelco 25 km · La Magdalena Tlaltelulco 29 km · Santa Ana Chiautempan 29 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 San Rafael Tlanalapan (19.2917°, -98.4681°, elevation 2,294 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).