Tlapa de Comonfort weather in September

In September, Tlapa de Comonfort sees average daytime highs of 26°C and overnight lows near 16°C, with 186 mm of rain across 23.2 wet days and about 12.1 hours of daylight. It is the 12th-warmest and 1st-wettest month of the year here.

Day-to-day highs hold fairly steady near 26°C through the month. The sky is clear or mostly clear about 5% of the time in September, and the air most often feels humid.

Daylight stretches from about 12 h 18 min at the start of September to 11 h 54 min by month's end. Set against the rest of the year, September is Tlapa de Comonfort's 12th-clearest and 12th-windiest month. For the whole year in context, see Tlapa de Comonfort's year-round climate.

Daytime high
26°
12th warmest
Overnight low
16°
10th coldest
Rainfall
186 mm
23.2 wet days
Daylight
12 h 06 min
6:26 AM – 6:32 PM
Cloud cover
81%
12th clearest
Wind
4 km/h
12th windiest
Solar energy
5 kWh/m²
Travel score
4.4
out of 10

Tlapa de Comonfort is municipal seat of Tlapa, State of Guerrero, 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 26°C through the month.

A typical September day in Tlapa de Comonfort reaches about 26°C in the afternoon and slips back to 16°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 24°C and 28°C. Set against its neighbours, September runs about 1°C cooler than August and on par with October.

10°15°20°25°30°151015202530
Avg high (°C)Avg low (°C)
12616
22616
32616
42616
52616
62616
72616
82616
92616
102616
112616
122616
132616
142616
152616
162616
172616
182616
192616
202616
212616
222616
232616
242616
252616
262616
272616
282616
292616
302616

Tlapa de Comonfort weather by month

How September compares with the rest of the year at a glance. September is the 12th-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan26° / 12°101.811.18.5
Feb28° / 13°61.211.48.1
Mar29° / 14°112.511.96.8
Apr30° / 16°184.612.45.6
May29° / 17°6212.312.85.0
Jun27° / 17°16222.4134.4
Jul26° / 16°15022.612.94.5
Aug27° / 16°17023.812.64.4
Sep26° / 16°18623.212.14.4
Oct26° / 15°8412.411.66.1
Nov27° / 14°19411.27.7
Dec26° / 12°91.6118.4

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 5% of the time in September, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 11% of September, with mostly cloudy or overcast conditions the remaining 84%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
11684
21684
31684
41684
51684
61684
71684
81684
91684
101684
111585
121585
131585
141585
151585
161585
171585
181585
191486
201585
211585
221585
231684
241684
251684
261783
271882
281981
292080
302179

Chance of precipitation in September

Any precipitation

Tlapa de Comonfort gets around 186 mm of rain over 23.2 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 76% and peaks near 82% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%80%151015202530
Rain chance (%)
181
281
382
482
582
682
782
881
981
1080
1179
1279
1378
1477
1577
1676
1776
1875
1975
2074
2174
2273
2372
2471
2570
2669
2768
2867
2966
3064

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the humid band about 52% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)
134552
234552
334453
434453
534453
634453
734453
834453
934453
1034453
1134453
1234453
1334453
1434453
1534453
1634552
1734552
1834453
1934453
2034453
2134552
2234552
2344551
2444551
2554550
2664549
2764548
2874647
2984646
3094645

Wind in September

Winds average 4 km/h in September, the calmest month.

Across September, daily wind ranges from about 4 km/h on the calmest days to 4 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
14calm
24calm
34calm
44calm
54calm
64calm
74calm
84calm
94calm
104calm
114calm
124calm
134calm
144calm
154calm
164calm
174calm
184calm
194calm
204calm
214calm
224calm
234calm
244calm
254calm
264calm
274calm
284calm
294calm
304calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 18 min at the start of September to 11 h 54 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 24 minutes over September. Sunrise moves from 6:24 AM to 6:28 AM, and sunset from 6:44 PM to 6:19 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.36:246:44
212.36:246:44
312.36:246:43
412.36:246:42
512.36:246:41
612.36:246:40
712.26:246:39
812.26:256:39
912.26:256:38
1012.26:256:37
1112.26:256:36
1212.26:256:35
1312.16:256:34
1412.16:256:33
1512.16:266:32
1612.16:266:32
1712.16:266:31
1812.16:266:30
1912.06:266:29
2012.06:266:28
2112.06:266:27
2212.06:276:26
2312.06:276:25
2412.06:276:25
2511.96:276:24
2611.96:276:23
2711.96:276:22
2811.96:276:21
2911.96:286:20
3011.96:286:19

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5 kWh/m².

For context, solar energy here swings from a low near 4.98 kWh/m² to a high of 7.07 kWh/m² in April across the year — September's 5 kWh/m² sits near the bottom.

0246151015202530
Solar energy (kWh/m²)Level
15.2Bright
25.2Bright
35.2Bright
45.2Bright
55.1Bright
65.1Bright
75.1Bright
85.1Bright
95.1Bright
105.1Bright
115.1Bright
125.1Bright
135.0Bright
145.0Bright
155.0Bright
165.0Bright
175.0Bright
185.0Bright
195.0Bright
205.0Bright
215.0Bright
225.0Bright
235.0Bright
244.9Bright
254.9Bright
264.9Bright
274.9Bright
284.9Bright
294.9Bright
305.0Bright
Planning a trip in September

Hazard calendar for Tlapa de Comonfort

In seasonPeak

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

Tlapa de Comonfort'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 Tlapa de Comonfort?

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

4.4
Sightseeing
10th-best month of the year
4.3
Beach & pool
12th-best month of the year

September is a reasonable time to visit Tlapa de Comonfort for sightseeing.

What to pack for Tlapa de Comonfort in September

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

In September, Tlapa de Comonfort sees daytime highs around 26°C and nights near 16°C. Pack rain gear. Worth having: light clothes and sun protection. About 23 days see rain.

rain gearlight clothessun protection

UV index in Tlapa de Comonfort in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 12 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Tlapa de Comonfort peaks around April 11 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.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highApr 11UV 14Dec 15UV 8
UV index (midday)Level
Jan10Very high
Feb12Extreme
Mar14Extreme
Apr14Extreme
May10Extreme
Jun13Extreme
Jul12Extreme
Aug14Extreme
Sep12Extreme
Oct12Extreme
Nov9Very high
Dec8Very high

Air quality in Tlapa de Comonfort 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 Tlapa de Comonfort is worst in May — around 30 µg/m³ PM2.5 (moderate), about 3.3× the cleanest month (February, 9 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodMay 1229 µg/m³Feb 99 µg/m³
PM2.5 (µg/m³)Level
Jan9Good
Feb9Good
Mar13Moderate
Apr26Moderate
May30Moderate
Jun15Moderate
Jul15Moderate
Aug14Moderate
Sep14Moderate
Oct14Moderate
Nov11Good
Dec10Good
Location & terrain

Where is Tlapa de Comonfort?

Tlapa de Comonfort sits at 17.5°N, 98.6°W, 1,092 m above sea level, in Mexico. The nearest listed city is Chilapa de Álvarez, 64 km away.

Topography around Tlapa de Comonfort

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

Within 3 km, the terrain around Tlapa de Comonfort has significant variations in elevation — a maximum elevation change of 503 m around an average of 1,191 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,232 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,821 m.

The land around Tlapa de Comonfort is covered by shrubs (34%), artificial surfaces (27%) and trees (20%) within 3 km, trees (43%) and shrubs (33%) within 16 km, and trees (56%) and shrubs (30%) within 80 km.

3 km
503 m
16 km
1,232 m
80 km
2,821 m
treesshrubsgrasslandcroplandartificial surfacesbare terrain
September weather nearby: Chilapa de Álvarez 64 km · Ayutla de los Libres 85 km · Tixtla de Guerrero 87 km · Ciudad de Huajuapan de León 89 km · Acatlán de Osorio 92 km · Ometepec 97 km · Chilpancingo 98 km · Heroica Ciudad de Tlaxiaco 100 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 Tlapa de Comonfort (17.5453°, -98.576°, elevation 1,092 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).