Anáhuac weather in September

In September, Anáhuac sees average daytime highs of 34°C and overnight lows near 24°C, with 88 mm of rain across 9.1 wet days and about 12.2 hours of daylight. It is the 5th-warmest and 1st-wettest month of the year here.

Highs ease over the month, from about 36°C in the first days to 33°C by the end. The sky is clear or mostly clear about 52% of the time in September, and the air most often feels oppressive.

Daylight stretches from about 12 h 36 min at the start of September to 11 h 48 min by month's end. Set against the rest of the year, September is Anáhuac's 6th-clearest and 8th-windiest month. For the whole year in context, see Anáhuac's year-round climate.

Daytime high
34°
5th warmest
Overnight low
24°
9th coldest
Rainfall
88 mm
9.1 wet days
Daylight
12 h 12 min
6:30 AM – 6:40 PM
Cloud cover
45%
6th clearest
Wind
13 km/h
8th windiest
Solar energy
5.33 kWh/m²
Travel score
3.1
out of 10

Anáhuac is municipal seat of Anáhuac, State of Nuevo León, Mexico.

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 36°C in the first days to 33°C by the end.

A typical September day in Anáhuac reaches about 34°C in the afternoon and slips back to 24°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 30°C and 39°C. Set against its neighbours, September runs about 4°C cooler than August and about 4°C warmer than October.

20°30°40°151015202530
Avg high (°C)Avg low (°C)
13625
23625
33625
43625
53625
63525
73525
83525
93525
103524
113524
123524
133424
143424
153424
163424
173424
183423
193423
203423
213423
223323
233323
243323
253322
263322
273322
283322
293322
303322

How September really feels in Anáhuac

Once humidity and wind are folded in, September averages 30 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
30
4 feel dangerously hot (≥ 39°C)
Days feeling ≤ C
0
wind chill below the day's low

The story in September is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Anáhuac weather by month

How September compares with the rest of the year at a glance. September is the 5th-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan21° / 10°204.110.57.5
Feb24° / 12°173.6118.0
Mar28° / 16°304.511.86.7
Apr32° / 20°325.212.64.4
May35° / 23°527.513.32.5
Jun38° / 26°284.813.71.4
Jul38° / 26°395.113.51.0
Aug38° / 26°364.2131.1
Sep34° / 24°889.112.23.1
Oct31° / 19°485.111.35.5
Nov25° / 14°243.910.78.0
Dec21° / 10°254.310.37.6

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 52% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 17% of September, with mostly cloudy or overcast conditions the remaining 31%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
16931
26832
36832
46832
56634
66634
76535
86535
96535
106535
116535
126535
136535
146535
156634
166634
176634
186733
196832
206931
217030
227129
237228
247327
257525
267525
277723
287822
297822
307921

Chance of precipitation in September

Any precipitation

Anáhuac gets around 88 mm of rain over 9.1 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 29% and peaks near 33% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%151015202530
Rain chance (%)
126
227
328
430
531
632
732
833
933
1033
1133
1233
1333
1433
1533
1632
1732
1831
1930
2029
2129
2228
2327
2426
2525
2624
2723
2822
2921
3021

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

Most of September feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, September lands in the oppressive band about 40% of days. Sticky, muggy-or-worse air turns up on roughly 77% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
113843432
213841442
314840452
414838462
514837472
624837472
724836482
824736482
924736482
1024736482
1125736482
1225836472
1325836462
1435836453
1536936443
1636936432
17361036422
18471136412
19471235392
20581335382
21581434372
22691534352
23791633342
247101632332
258101732321
268111831301
279111831291
2810121831281
2910121930271
3011131930261

Wind in September

Winds average 13 km/h in September.

Across September, daily wind ranges from about 13 km/h on the calmest days to 15 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202530
Wind speed (km/h)Feels
115light breeze
215light breeze
314light breeze
414light breeze
514light breeze
614light breeze
714light breeze
814light breeze
914light breeze
1014light breeze
1114light breeze
1213light breeze
1313light breeze
1413light breeze
1513light breeze
1613light breeze
1713light breeze
1813light breeze
1913light breeze
2013light breeze
2113light breeze
2213light breeze
2313light breeze
2413light breeze
2513light breeze
2613light breeze
2713light breeze
2813light breeze
2913light breeze
3013light breeze

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 36 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 48 minutes over September. Sunrise moves from 6:23 AM to 6:37 AM, and sunset from 6:57 PM to 6:23 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.66:236:57
212.56:246:56
312.56:246:55
412.56:256:54
512.56:256:53
612.46:266:52
712.46:266:50
812.46:266:49
912.46:276:48
1012.36:276:47
1112.36:286:46
1212.36:286:44
1312.26:296:43
1412.26:296:42
1512.26:306:41
1612.26:306:40
1712.16:316:38
1812.16:316:37
1912.16:316:36
2012.06:326:35
2112.06:326:34
2212.06:336:32
2312.06:336:31
2411.96:346:30
2511.96:346:29
2611.96:356:28
2711.96:356:27
2811.86:366:25
2911.86:366:24
3011.86:376:23

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.33 kWh/m².

For context, solar energy here swings from a low near 3.21 kWh/m² to a high of 6.95 kWh/m² in July across the year — September's 5.33 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.9Bright
25.8Bright
35.8Bright
45.7Bright
55.7Bright
65.6Bright
75.5Bright
85.5Bright
95.5Bright
105.4Bright
115.4Bright
125.4Bright
135.3Bright
145.3Bright
155.3Bright
165.3Bright
175.3Bright
185.3Bright
195.3Bright
205.2Bright
215.2Bright
225.2Bright
235.2Bright
245.2Bright
255.2Bright
265.2Bright
275.2Bright
285.2Bright
295.1Bright
305.1Bright
Planning a trip in September

Is September a good time to visit Anáhuac?

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

3.1
Sightseeing
8th-best month of the year
6.1
Beach & pool
6th-best month of the year

September is a weaker month for outdoor sightseeing in Anáhuac. The water and warmth also suit a beach or pool day.

What to pack for Anáhuac in September

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

In September, Anáhuac sees daytime highs around 34°C and nights near 24°C. Pack light clothes. Worth having: rain gear and sun protection. About 9 days see rain.

light clothesrain gearsun protection

UV index in Anáhuac in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 9 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Anáhuac peaks around July 18 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 18 at about 5 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecHighVery highExtremeVery highHighModerateJul 18UV 12Dec 18UV 5
UV index (midday)Level
Jan5High
Feb7High
Mar8Very high
Apr10Very high
May10Very high
Jun11Extreme
Jul12Extreme
Aug11Extreme
Sep9Very high
Oct8Very high
Nov5High
Dec4Moderate

Air quality in Anáhuac 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 Anáhuac is worst in July — around 17 µg/m³ PM2.5 (moderate), about 3.2× the cleanest month (January, 5 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1517 µg/m³Jan 185 µg/m³
PM2.5 (µg/m³)Level
Jan5Good
Feb6Good
Mar8Good
Apr10Good
May16Moderate
Jun15Moderate
Jul17Moderate
Aug13Moderate
Sep11Good
Oct7Good
Nov7Good
Dec6Good
Location & terrain

Where is Anáhuac?

Anáhuac sits at 27.2°N, 100.1°W, 193 m above sea level, in Mexico. The nearest listed city is Nuevo Laredo, 66 km away.

Topography around Anáhuac

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

Within 3 km, the terrain around Anáhuac has only modest variations in elevation — a maximum elevation change of 33 m around an average of 196 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 84 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,813 m.

The land around Anáhuac is covered by shrubs (57%) within 3 km, shrubs (85%) within 16 km, and shrubs (92%) within 80 km.

3 km
33 m
16 km
84 m
80 km
1,813 m
treesshrubsgrasslandcroplandartificial surfacesbare terrain
September weather nearby: Nuevo Laredo 66 km · Laredo 68 km · Ciudad Sabinas Hidalgo 82 km · Sabinas 119 km · Nueva Rosita 132 km · Monclova 133 km · Frontera 135 km · Castaños 138 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 Anáhuac (27.2412°, -100.1334°, elevation 193 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).