Cacahoatán weather in May

In May, Cacahoatán sees average daytime highs of 29°C and overnight lows near 20°C, with 414 mm of rain across 27.8 wet days and about 12.7 hours of daylight. It is the 4th-warmest and 6th-wettest month of the year here.

Day-to-day highs hold fairly steady near 29°C through the month. The sky is clear or mostly clear about 11% of the time in May, and the air most often feels muggy.

Daylight stretches from about 12 h 30 min at the start of May to 12 h 48 min by month's end. Set against the rest of the year, May is Cacahoatán's 7th-clearest and 7th-windiest month. For the whole year in context, see Cacahoatán's year-round climate.

Daytime high
29°
4th warmest
Overnight low
20°
12th coldest
Rainfall
414 mm
27.8 wet days
Daylight
12 h 42 min
5:44 AM – 6:26 PM
Cloud cover
72%
7th clearest
Wind
4 km/h
7th windiest
Solar energy
5.54 kWh/m²
Travel score
3.3
out of 10

Cacahoatán is municipal seat of Cacahoatán, State of Chiapas, Mexico.

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

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 29°C through the month.

A typical May day in Cacahoatán reaches about 29°C in the afternoon and slips back to 20°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 31°C. Set against its neighbours, May runs about 1°C cooler than April and about 1°C warmer than June.

15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13020
23020
33020
43020
53020
63020
73020
83020
92920
102920
112920
122920
132920
142920
152920
162920
172921
182921
192921
202921
212921
222921
232921
242921
252920
262920
272820
282820
292820
302820
312820

Cacahoatán weather by month

How May compares with the rest of the year at a glance. May is the 4th-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 17°184.511.26.9
Feb30° / 18°154.311.56.3
Mar30° / 19°429.211.95.3
Apr30° / 20°11916.812.34.3
May29° / 20°41427.812.73.3
Jun28° / 20°54829.112.93.0
Jul28° / 19°50630.712.82.9
Aug28° / 20°57130.612.53.0
Sep28° / 20°69729.512.13.2
Oct28° / 20°61729.911.73.4
Nov28° / 18°24521.411.34.8
Dec28° / 17°449.411.16.5

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 11% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 19% of May, with mostly cloudy or overcast conditions the remaining 70%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15149
25050
35050
44852
54753
64555
74456
84258
94159
103961
113763
123565
133367
143070
152971
162872
172773
182575
192476
202377
212179
222179
231981
241882
251783
261783
271684
281684
291585
301486
311387

Chance of precipitation in May

Any precipitation

Cacahoatán gets around 414 mm of rain over 27.8 wet days in May. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 89% and peaks near 96% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%100%151015202531
Rain chance (%)
175
277
378
479
581
682
783
884
985
1086
1186
1287
1388
1488
1589
1690
1790
1891
1992
2092
2193
2293
2394
2494
2594
2695
2795
2895
2996
3096
3196

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May lands in the muggy band about 57% of days. Sticky, muggy-or-worse air turns up on roughly 97% of them.

0%25%50%75%100%151015202531
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1266626
2156628
3156529
4146530
5146431
6136432
7136333
8136135
9036136
10026137
11125938
12125839
13125740
14125641
15125542
16125443
17125344
18125245
19125245
20125146
21125146
22125146
23125047
24125047
25125146
26125146
27125146
28025345
29015445
30015445
31015445

Wind in May

Winds average 4 km/h in May.

Across May, 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.

0246810151015202531
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
314calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 12 h 30 min at the start of May to 12 h 48 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 18 minutes over May. Sunrise moves from 5:50 AM to 5:42 AM, and sunset from 6:22 PM to 6:31 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.55:506:22
212.55:496:22
312.65:496:22
412.65:496:22
512.65:486:23
612.65:486:23
712.65:476:23
812.65:476:23
912.65:466:24
1012.65:466:24
1112.65:466:24
1212.75:456:25
1312.75:456:25
1412.75:456:25
1512.75:446:25
1612.75:446:26
1712.75:446:26
1812.75:446:26
1912.75:436:27
2012.75:436:27
2112.75:436:27
2212.75:436:28
2312.85:426:28
2412.85:426:28
2512.85:426:29
2612.85:426:29
2712.85:426:29
2812.85:426:30
2912.85:426:30
3012.85:426:30
3112.85:426:31

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.54 kWh/m².

For context, solar energy here swings from a low near 4.58 kWh/m² to a high of 6.16 kWh/m² in April across the year — May's 5.54 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
16.0Bright
26.0Bright
36.0Bright
45.9Bright
55.9Bright
65.9Bright
75.9Bright
85.8Bright
95.8Bright
105.8Bright
115.8Bright
125.7Bright
135.7Bright
145.7Bright
155.6Bright
165.6Bright
175.5Bright
185.5Bright
195.5Bright
205.4Bright
215.4Bright
225.3Bright
235.3Bright
245.3Bright
255.2Bright
265.2Bright
275.1Bright
285.1Bright
295.1Bright
305.0Bright
315.0Bright
Planning a trip in May

Hazard calendar for Cacahoatán

In seasonPeak

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

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

Cacahoatán's monsoon runs May–October, when most of the year's rain falls.

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

Is May a good time to visit Cacahoatán?

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

3.3
Sightseeing
8th-best month of the year
4.2
Beach & pool
7th-best month of the year

May is a weaker month for outdoor sightseeing in Cacahoatán.

What to pack for Cacahoatán in May

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

In May, Cacahoatán sees daytime highs around 29°C and nights near 20°C. Pack light clothes and rain gear. Worth having: sun protection. About 28 days see rain.

light clothesrain gearsun protection

Sea temperature near Cacahoatán in May

The nearest coast averages about 30°C in May — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 47 km away) is warmest in August at about 30°C and coldest in February near 28°C.

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

26°28°30°32°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan29Tropical
Feb28Tropical
Mar29Tropical
Apr30Tropical
May30Tropical
Jun30Tropical
Jul30Tropical
Aug30Tropical
Sep30Tropical
Oct29Tropical
Nov30Tropical
Dec29Tropical

UV index in Cacahoatán in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May 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 Cacahoatán peaks around April 9 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 14 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 highApr 9UV 13Dec 14UV 8
UV index (midday)Level
Jan9Very high
Feb12Extreme
Mar13Extreme
Apr13Extreme
May11Extreme
Jun13Extreme
Jul12Extreme
Aug12Extreme
Sep11Extreme
Oct10Extreme
Nov8Very high
Dec8Very high

Air quality in Cacahoatán in May

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where May falls, not just the annual average.

Air quality in Cacahoatán is worst in May — around 40 µg/m³ PM2.5 (poor), and holds fairly steady the rest of the year.

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorModerateMay 1039 µg/m³Feb 827 µg/m³
PM2.5 (µg/m³)Level
Jan28Moderate
Feb27Moderate
Mar34Moderate
Apr38Poor
May40Poor
Jun29Moderate
Jul31Moderate
Aug30Moderate
Sep31Moderate
Oct29Moderate
Nov30Moderate
Dec29Moderate
Location & terrain

Where is Cacahoatán?

Cacahoatán sits at 15.0°N, 92.2°W, 498 m above sea level, in Mexico. The nearest listed city is Tapachula, 14 km away.

Topography around Cacahoatán

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

Within 3 km, the terrain around Cacahoatán has significant variations in elevation — a maximum elevation change of 297 m around an average of 488 m above sea level; within 16 km, extreme variations in elevation — a maximum elevation change of 3,692 m; within 80 km, extreme variations in elevation — a maximum elevation change of 4,178 m.

The land around Cacahoatán is covered by trees (81%) within 3 km, trees (86%) within 16 km, and trees (60%) within 80 km.

3 km
297 m
16 km
3,692 m
80 km
4,178 m
treesshrubsgrasslandcroplandartificial surfaceswaterwetlandmangroves
May weather nearby: Tapachula 14 km · Malacatán 15 km · Huixtla 36 km · San Marcos 40 km · Motozintla 43 km · San Pedro Sacatepéquez 43 km · Coatepeque 45 km · Comitancillo 46 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 Cacahoatán (14.992°, -92.1642°, elevation 498 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).