Comalcalco weather in September

In September, Comalcalco sees average daytime highs of 32°C and overnight lows near 24°C, with 262 mm of rain across 25.3 wet days and about 12.1 hours of daylight. It is the 7th-warmest and 1st-wettest month of the year here.

Day-to-day highs hold fairly steady near 32°C through the month. The sky is clear or mostly clear about 10% of the time in September, and the air most often feels miserable.

Daylight stretches from about 12 h 24 min at the start of September to 11 h 54 min by month's end. Set against the rest of the year, September is Comalcalco's 12th-clearest and 12th-windiest month. For the whole year in context, see Comalcalco's year-round climate.

Daytime high
32°
7th warmest
Overnight low
24°
8th coldest
Rainfall
262 mm
25.3 wet days
Daylight
12 h 06 min
6:04 AM – 6:10 PM
Cloud cover
78%
12th clearest
Wind
8 km/h
12th windiest
Solar energy
5.17 kWh/m²
Travel score
2.5
out of 10

Comalcalco is municipal seat of Comalcalco, State of Tabasco, Mexico.

Density
2,303/km²
people per km²
Founded
1827

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 32°C through the month.

A typical September day in Comalcalco reaches about 32°C in the afternoon and slips back to 24°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 30°C and 34°C. Set against its neighbours, September runs about 2°C cooler than August and about 1°C warmer than October.

20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
13325
23325
33325
43225
53225
63225
73225
83225
93225
103225
113225
123225
133225
143225
153225
163224
173224
183224
193224
203224
213224
223224
233224
243124
253124
263124
273124
283124
293124
303124

How September really feels in Comalcalco

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
22 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.

Comalcalco weather by month

How September compares with the rest of the year at a glance. September is the 7th-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan28° / 20°649.8116.5
Feb29° / 21°396.711.45.8
Mar32° / 22°22511.94.6
Apr35° / 24°315.812.43.1
May35° / 26°6610.412.82.4
Jun34° / 25°18920.413.12.2
Jul34° / 25°13217.5132.4
Aug33° / 25°18722.112.62.3
Sep32° / 24°26225.312.12.5
Oct31° / 24°21720.611.63.6
Nov29° / 22°11314.211.14.9
Dec28° / 21°641010.96.1

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 10% 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 78%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
12575
22575
32476
42476
52377
62278
72278
82278
92377
102179
112179
122179
132080
142080
152080
162080
172080
182080
192080
202080
212080
222080
232179
242179
252179
262278
272377
282377
292575
302575

Chance of precipitation in September

Any precipitation

Comalcalco gets around 262 mm of rain over 25.3 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 84% and peaks near 85% on the wettest days.

0%20%40%60%80%100%151015202530
Rain chance (%)
183
283
383
484
584
684
784
884
984
1084
1184
1284
1384
1484
1584
1684
1784
1884
1984
2085
2185
2285
2384
2484
2584
2683
2782
2882
2981
3080

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the miserable band about 80% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Muggy (%)Oppressive (%)Miserable (%)
101882
201882
301783
401783
501783
601783
701783
801783
901783
1001783
1101684
1201684
1301684
1401684
1501684
1601684
1701783
1801783
1901882
2001882
2101981
2202080
2312178
2412376
2512475
2612673
2712772
2812871
2922969
3023068

Wind in September

Winds average 8 km/h in September, the calmest month.

Across September, daily wind ranges from about 8 km/h on the calmest days to 8 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
58calm
68calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
158calm
168calm
178calm
188calm
198calm
208calm
218calm
228calm
238calm
248calm
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 54 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 30 minutes over September. Sunrise moves from 6:02 AM to 6:07 AM, and sunset from 6:24 PM to 5:58 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.46:026:24
212.36:026:23
312.36:026:22
412.36:026:21
512.36:026:20
612.36:036:19
712.36:036:18
812.26:036:17
912.26:036:17
1012.26:036:16
1112.26:036:15
1212.26:046:14
1312.26:046:13
1412.16:046:12
1512.16:046:11
1612.16:046:10
1712.16:046:09
1812.16:046:08
1912.06:056:08
2012.06:056:07
2112.06:056:06
2212.06:056:05
2312.06:056:04
2412.06:056:03
2511.96:066:02
2611.96:066:01
2711.96:066:00
2811.96:066:00
2911.96:065:59
3011.96:075:58

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.17 kWh/m².

For context, solar energy here swings from a low near 3.89 kWh/m² to a high of 6.7 kWh/m² in May across the year — September's 5.17 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.6Bright
25.6Bright
35.5Bright
45.5Bright
55.5Bright
65.5Bright
75.5Bright
85.4Bright
95.4Bright
105.4Bright
115.3Bright
125.3Bright
135.3Bright
145.3Bright
155.3Bright
165.2Bright
175.2Bright
185.2Bright
195.1Bright
205.1Bright
215.0Bright
225.0Bright
235.0Bright
244.9Bright
254.9Bright
264.8Bright
274.8Bright
284.8Bright
294.8Bright
304.7Bright
Planning a trip in September

Hazard calendar for Comalcalco

In seasonPeak

In September, Comalcalco sits inside its atlantic hurricane and rainy season season. The full year is below, with each hazard's peak months called out.

Comalcalco sits in the Atlantic hurricane belt; the season peaks August–October.

Comalcalco's rainy season runs June–October, when most of the year's rain falls.

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

Is September a good time to visit Comalcalco?

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

2.5
Sightseeing
8th-best month of the year
4.0
Beach & pool
12th-best month of the year

September is a weaker month for outdoor sightseeing in Comalcalco.

What to pack for Comalcalco in September

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

In September, Comalcalco sees daytime highs around 32°C and nights near 24°C. Pack light clothes and rain gear. Worth having: sun protection. About 25 days see rain.

light clothesrain gearsun protection

Sea temperature near Comalcalco in September

The nearest coast averages about 29°C in September — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 41 km away) is warmest in September at about 29°C and coldest in January near 25°C.

The water stays above 20°C all year — warm enough for a swim any month.

24°26°28°30°JanFebMarAprMayJunJulAugSepOctNovDecrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan25Warm
Feb25Warm
Mar25Warm
Apr27Warm
May28Tropical
Jun29Tropical
Jul28Tropical
Aug29Tropical
Sep29Tropical
Oct29Tropical
Nov27Warm
Dec26Warm

UV index in Comalcalco 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 Comalcalco peaks around August 17 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near January 1 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 highExtremeVery highAug 17UV 13Jan 1UV 7
UV index (midday)Level
Jan7High
Feb10Extreme
Mar12Extreme
Apr13Extreme
May8Very high
Jun13Extreme
Jul11Extreme
Aug13Extreme
Sep12Extreme
Oct10Extreme
Nov8Very high
Dec7High

Air quality in Comalcalco 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 Comalcalco is worst in May — around 77 µg/m³ PM2.5 (unhealthy), about 2.4× the cleanest month (January, 32 µg/m³).

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

020406080JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorUnhealthyPoorMay 1375 µg/m³Jan 1633 µg/m³
PM2.5 (µg/m³)Level
Jan32Moderate
Feb37Poor
Mar46Poor
Apr69Unhealthy
May77Unhealthy
Jun52Poor
Jul45Poor
Aug40Poor
Sep41Poor
Oct38Poor
Nov36Poor
Dec37Poor
Location & terrain

Where is Comalcalco?

Comalcalco sits at 18.3°N, 93.2°W, 10 m above sea level, in Mexico. The nearest listed city is Paraiso, 15 km away.

Topography around Comalcalco

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

Within 3 km, the terrain around Comalcalco has only modest variations in elevation — a maximum elevation change of 27 m around an average of 8 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 31 m; within 80 km, significant variations in elevation — a maximum elevation change of 374 m.

The land around Comalcalco is covered by trees (44%), grassland (30%) and artificial surfaces (23%) within 3 km, grassland (38%) and trees (37%) within 16 km, and grassland (35%) and water (31%) within 80 km.

3 km
27 m
16 km
31 m
80 km
374 m
treesgrasslandcroplandartificial surfaceswaterwetlandmangroves
September weather nearby: Paraiso 15 km · Jalpa de Méndez 20 km · Cunduacán 23 km · Taxco 27 km · Cárdenas 33 km · Villahermosa 43 km · Reforma 46 km · Huimanguillo 51 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 Comalcalco (18.265°, -93.2243°, elevation 10 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. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. 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).