Acatlán de Osorio weather in May

In May, Acatlán de Osorio sees average daytime highs of 32°C and overnight lows near 18°C, with 43 mm of rain across 8.2 wet days and about 12.8 hours of daylight. It is the 2nd-warmest and 6th-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 41% of the time in May, and the air most often feels dry.

Daylight stretches from about 12 h 42 min at the start of May to 13 hours by month's end. Set against the rest of the year, May is Acatlán de Osorio's 7th-clearest and 10th-windiest month. For the whole year in context, see Acatlán de Osorio's year-round climate.

Daytime high
32°
2nd warmest
Overnight low
18°
12th coldest
Rainfall
43 mm
8.2 wet days
Daylight
12 h 54 min
6:03 AM – 6:54 PM
Cloud cover
49%
7th clearest
Wind
8 km/h
10th windiest
Solar energy
7.02 kWh/m²
Travel score
4.0
out of 10

Acatlán de Osorio is municipal seat of Acatlán, State of Puebla, 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 32°C through the month.

A typical May day in Acatlán de Osorio reaches about 32°C in the afternoon and slips back to 18°C overnight — a 14°C spread between the day's warmth and the night's chill. On most days the high lands between 30°C and 35°C. Set against its neighbours, May runs on par with April and about 3°C warmer than June.

15°20°25°30°35°40°151015202531
Avg high (°C)Avg low (°C)
13318
23318
33318
43318
53318
63318
73318
83318
93318
103318
113318
123318
133318
143318
153318
163218
173218
183218
193218
203218
213218
223218
233218
243218
253218
263218
273218
283218
293218
303218
313118

How May really feels in Acatlán de Osorio

Once humidity and wind are folded in, May averages 24 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
24
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

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

Acatlán de Osorio weather by month

How May compares with the rest of the year at a glance. May is the 2nd-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan27° / 12°40.8118.5
Feb29° / 13°30.611.47.5
Mar31° / 15°4111.96.0
Apr33° / 17°102.412.44.6
May32° / 18°438.212.84.0
Jun30° / 18°14415.913.14.2
Jul30° / 17°10312.1134.7
Aug30° / 17°13514.912.64.3
Sep28° / 17°1681712.14.7
Oct29° / 16°598.611.65.8
Nov29° / 14°91.911.17.1
Dec27° / 12°30.310.98.4

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 41% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 27% of May, with mostly cloudy or overcast conditions the remaining 32%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17426
27426
37327
47327
57327
67228
77228
87228
97129
107129
117129
127129
137030
147129
157129
167129
177129
187129
196931
206931
216733
226634
236535
246436
256337
266040
275941
285743
295545
305446
315248

Chance of precipitation in May

Any precipitation

Acatlán de Osorio gets around 43 mm of rain over 8.2 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 27% and peaks near 42% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%40%50%151015202531
Rain chance (%)
116
217
317
418
519
620
721
821
922
1023
1123
1223
1324
1424
1525
1625
1726
1826
1927
2028
2128
2229
2330
2431
2533
2634
2735
2837
2939
3040
3142

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May lands in the dry band about 55% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
178202
276213
374233
473243
570264
669274
767285
865305
963316
1061327
1160337
1258348
1357358
1455369
1554379
16533710
17523810
18503911
19503911
20494012
21484013
22474013
23464014
24454115
25434116
26424117
27414118
28404120
29384121
30364023
31344025

Wind in May

Winds average 8 km/h in May.

Across May, daily wind ranges from about 7 km/h on the calmest days to 9 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
19calm
29calm
39calm
48calm
58calm
68calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
158calm
168calm
178calm
188calm
198calm
208calm
218calm
228calm
238calm
248calm
257calm
267calm
277calm
287calm
297calm
307calm
317calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 12 h 42 min at the start of May to 13 hours by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 18 minutes over May. Sunrise moves from 6:10 AM to 6:00 AM, and sunset from 6:49 PM to 7:00 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.76:106:49
212.76:096:49
312.76:096:50
412.76:086:50
512.76:086:50
612.76:076:51
712.76:076:51
812.86:066:51
912.86:066:52
1012.86:056:52
1112.86:056:52
1212.86:046:53
1312.86:046:53
1412.86:046:53
1512.86:036:54
1612.96:036:54
1712.96:036:54
1812.96:026:55
1912.96:026:55
2012.96:026:56
2112.96:016:56
2212.96:016:56
2312.96:016:57
2412.96:016:57
2513.06:006:57
2613.06:006:58
2713.06:006:58
2813.06:006:59
2913.06:006:59
3013.06:006:59
3113.06:007:00

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 7.02 kWh/m².

For context, solar energy here swings from a low near 5.24 kWh/m² to a high of 7.39 kWh/m² in April across the year — May's 7.02 kWh/m² sits near the top of that range.

02468151015202531
Solar energy (kWh/m²)Level
17.3Intense
27.3Intense
37.3Intense
47.3Intense
57.3Intense
67.2Intense
77.2Intense
87.2Intense
97.2Intense
107.1Intense
117.1Intense
127.1Intense
137.1Intense
147.1Intense
157.0Intense
167.0Intense
177.0Intense
187.0Intense
197.0Intense
206.9Intense
216.9Intense
226.9Intense
236.9Intense
246.8Intense
256.8Intense
266.8Intense
276.7Intense
286.7Intense
296.6Intense
306.6Intense
316.5Intense
Planning a trip in May

Hazard calendar for Acatlán de Osorio

In seasonPeak

None of Acatlán de Osorio's seasonal hazards are active in May. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Acatlán de Osorio's rainy season runs June–September, when most of the year's rain falls.

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

Is May a good time to visit Acatlán de Osorio?

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

4.0
Sightseeing
12th-best month of the year
6.7
Beach & pool
8th-best month of the year

May is a reasonable time to visit Acatlán de Osorio for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Acatlán de Osorio in May

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

In May, Acatlán de Osorio sees daytime highs around 32°C and nights near 18°C. Pack light clothes and sun protection. Worth having: rain gear. About 8 days see rain.

light clothessun protectionrain gear

UV index in Acatlán de Osorio in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May 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 Acatlán de Osorio 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.

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeExtremeVery highApr 11UV 14Dec 15UV 8
UV index (midday)Level
Jan9Very high
Feb12Extreme
Mar13Extreme
Apr14Extreme
May9Very high
Jun13Extreme
Jul12Extreme
Aug14Extreme
Sep12Extreme
Oct11Extreme
Nov9Very high
Dec8Very high

Air quality in Acatlán de Osorio 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 Acatlán de Osorio is worst in May — around 29 µg/m³ PM2.5 (moderate), about 2.2× the cleanest month (February, 13 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateMay 1628 µg/m³Feb 1213 µg/m³
PM2.5 (µg/m³)Level
Jan14Moderate
Feb13Moderate
Mar15Moderate
Apr23Moderate
May29Moderate
Jun21Moderate
Jul19Moderate
Aug18Moderate
Sep21Moderate
Oct21Moderate
Nov18Moderate
Dec16Moderate
Location & terrain

Where is Acatlán de Osorio?

Acatlán de Osorio sits at 18.2°N, 98.0°W, 1,185 m above sea level, in Mexico. The nearest listed city is Ciudad de Huajuapan de León, 52 km away.

Topography around Acatlán de Osorio

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

Within 3 km, the terrain around Acatlán de Osorio has only modest variations in elevation — a maximum elevation change of 237 m around an average of 1,217 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 890 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,306 m.

The land around Acatlán de Osorio is covered by shrubs (55%) within 3 km, shrubs (83%) within 16 km, and shrubs (64%) within 80 km.

3 km
237 m
16 km
890 m
80 km
2,306 m
treesshrubsgrasslandcroplandartificial surfaces
May weather nearby: Ciudad de Huajuapan de León 52 km · Izúcar de Matamoros 62 km · Tehuacán 75 km · Altepexi 81 km · Axochiapan 82 km · Tecamachalco 83 km · Ajalpan 86 km · Zinacatepec 86 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 Acatlán de Osorio (18.2025°, -98.0486°, elevation 1,185 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).