Tulantongo weather in September

In September, Tulantongo sees average daytime highs of 20°C and overnight lows near 10°C, with 206 mm of rain across 22.6 wet days and about 12.1 hours of daylight. It is the 8th-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 7% 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 Tulantongo's 12th-clearest and 10th-windiest month. For the whole year in context, see Tulantongo's year-round climate.

Daytime high
20°
8th warmest
Overnight low
10°
11th coldest
Rainfall
206 mm
22.6 wet days
Daylight
12 h 06 min
6:27 AM – 6:33 PM
Cloud cover
77%
12th clearest
Wind
6 km/h
10th windiest
Solar energy
5.09 kWh/m²
Travel score
4.3
out of 10

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 Tulantongo 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)
12010
22010
32010
42010
52010
62010
72010
82010
92010
102010
112010
122010
132010
142010
152010
162010
172010
182010
192010
202010
212010
222010
232010
242010
252010
262010
272010
282010
292010
302010

Tulantongo weather by month

How September compares with the rest of the year at a glance. September is the 8th-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan19° / 153.6117.3
Feb21° / 143.611.37.8
Mar22° / 226.411.97.7
Apr23° / 429.112.47.2
May23° / 7213.112.96.5
Jun22° / 10°17719.813.25.0
Jul21° / 10°19124.813.14.2
Aug21° / 10°20024.612.74.2
Sep20° / 10°20622.612.14.3
Oct20° / 9813.411.55.7
Nov19° / 316.211.17.0
Dec19° / 102.210.87.6

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 7% 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 79%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
11981
21981
31981
41981
52080
62080
71981
82080
92080
102179
112179
122179
132080
142179
152179
162179
172080
182179
192179
202080
212080
222080
232278
242278
252278
262377
272377
282476
292674
302674

Chance of precipitation in September

Any precipitation

Tulantongo gets around 206 mm of rain over 22.6 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 74% and peaks near 79% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%80%151015202530
Rain chance (%)
179
279
379
479
579
678
778
878
977
1077
1177
1276
1376
1475
1575
1675
1774
1874
1974
2073
2173
2272
2371
2470
2569
2668
2767
2866
2964
3063

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 98% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)
1991
2991
3991
4991
5991
6991
7991
8982
9982
10982
11982
12982
13982
14982
15982
16982
17982
18982
19982
20982
21982
22982
23982
24982
25982
26982
27991
28991
29991
30991

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
126calm
136calm
146calm
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 6:23 AM to 6:30 AM, and sunset from 6:47 PM to 6:20 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.46:236:47
212.46:246:46
312.46:246:45
412.36:246:44
512.36:246:43
612.36:256:42
712.36:256:42
812.36:256:41
912.26:256:40
1012.26:256:39
1112.26:266:38
1212.26:266:37
1312.26:266:36
1412.16:266:35
1512.16:266:34
1612.16:276:33
1712.16:276:32
1812.16:276:31
1912.16:276:30
2012.06:276:29
2112.06:286:28
2212.06:286:27
2312.06:286:27
2412.06:286:26
2511.96:286:25
2611.96:296:24
2711.96:296:23
2811.96:296:22
2911.96:296:21
3011.86:306:20

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.09 kWh/m².

For context, solar energy here swings from a low near 5.02 kWh/m² to a high of 6.97 kWh/m² in April across the year — September's 5.09 kWh/m² sits near the bottom.

0246151015202530
Solar energy (kWh/m²)Level
15.3Bright
25.3Bright
35.3Bright
45.3Bright
55.3Bright
65.2Bright
75.2Bright
85.2Bright
95.2Bright
105.2Bright
115.2Bright
125.2Bright
135.2Bright
145.1Bright
155.1Bright
165.1Bright
175.1Bright
185.1Bright
195.1Bright
205.1Bright
215.1Bright
225.1Bright
235.1Bright
245.0Bright
255.0Bright
265.0Bright
275.0Bright
285.0Bright
295.0Bright
305.0Bright
Planning a trip in September

Hazard calendar for Tulantongo

In seasonPeak

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

Tulantongo's monsoon runs June–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 Tulantongo?

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

4.3
Sightseeing
10th-best month of the year
2.3
Beach & pool
12th-best month of the year

September is a reasonable time to visit Tulantongo for sightseeing.

What to pack for Tulantongo in September

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

In September, Tulantongo sees daytime highs around 20°C and nights near 10°C. Pack rain gear. Worth having: sun protection. About 23 days see rain.

rain gearsun protection

UV index in Tulantongo 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 Tulantongo peaks around June 17 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 17UV 14Dec 15UV 8
UV index (midday)Level
Jan9Very high
Feb11Extreme
Mar14Extreme
Apr14Extreme
May11Extreme
Jun15Extreme
Jul12Extreme
Aug14Extreme
Sep11Extreme
Oct11Extreme
Nov9Very high
Dec8Very high

Air quality in Tulantongo 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 Tulantongo is worst in December — around 179 µg/m³ PM2.5 (very unhealthy), and holds fairly steady the rest of the year.

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

0306090120150180210JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyVery unhealthyDec 11178 µg/m³Apr 14115 µg/m³
PM2.5 (µg/m³)Level
Jan149Unhealthy
Feb141Unhealthy
Mar126Unhealthy
Apr113Unhealthy
May134Unhealthy
Jun126Unhealthy
Jul135Unhealthy
Aug127Unhealthy
Sep136Unhealthy
Oct137Unhealthy
Nov174Very unhealthy
Dec179Very unhealthy
Location & terrain

Where is Tulantongo?

Tulantongo sits at 19.5°N, 98.9°W, 2,259 m above sea level, in Mexico. The nearest listed city is Texcoco de Mora, 2.0 km away.

Topography around Tulantongo

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

Within 3 km, the terrain around Tulantongo has only modest variations in elevation — a maximum elevation change of 43 m around an average of 2,257 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,339 m; within 80 km, extreme variations in elevation — a maximum elevation change of 4,224 m.

The land around Tulantongo is covered by artificial surfaces (51%) and cropland (32%) within 3 km, artificial surfaces (24%), shrubs (22%) and cropland (22%) within 16 km, and trees (32%) and cropland (29%) within 80 km.

3 km
43 m
16 km
1,339 m
80 km
4,224 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Texcoco de Mora 2.0 km · Chiconcuac 4.0 km · San Salvador Atenco 5.0 km · Tezoyuca 8.0 km · San Miguel Coatlinchán 9.0 km · Tepexpan 11 km · Chicoloapan 13 km · Santa María Chimalhuacán 15 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 Tulantongo (19.5316°, -98.8746°, elevation 2,259 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).