Zacatlán weather in May

In May, Zacatlán sees average daytime highs of 23°C and overnight lows near 12°C, with 139 mm of rain across 20.8 wet days and about 12.9 hours of daylight. It is the 1st-warmest and 6th-wettest month of the year here.

Day-to-day highs hold fairly steady near 23°C through the month. The sky is clear or mostly clear about 21% of the time in May, and the air most often feels comfortable.

Daylight stretches from about 12 h 42 min at the start of May to 13 h 06 min by month's end. Set against the rest of the year, May is Zacatlán's 6th-clearest and 4th-windiest month. For the whole year in context, see Zacatlán's year-round climate.

Daytime high
23°
1st warmest
Overnight low
12°
8th coldest
Rainfall
139 mm
20.8 wet days
Daylight
12 h 54 min
6:00 AM – 6:56 PM
Cloud cover
60%
6th clearest
Wind
6 km/h
4th windiest
Solar energy
6.34 kWh/m²
Travel score
5.2
out of 10

Zacatlán is municipal seat of Zacatlán, State of Puebla, Mexico.

Founded
1562

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 23°C through the month.

A typical May day in Zacatlán reaches about 23°C in the afternoon and slips back to 12°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 19°C and 26°C. Set against its neighbours, May runs on par with April and on par with June.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12312
22312
32312
42312
52312
62312
72312
82312
92312
102312
112312
122312
132312
142312
152312
162312
172312
182312
192312
202313
212313
222313
232313
242313
252313
262313
272313
282313
292313
302313
312313

Zacatlán weather by month

How May compares with the rest of the year at a glance. May is the 1st-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan17° / 6412.510.95.1
Feb19° / 641211.35.6
Mar20° / 9716.511.95.5
Apr22° / 11°13519.412.45.2
May23° / 12°13920.812.95.2
Jun22° / 13°27924.213.24.3
Jul21° / 13°26929.513.13.6
Aug21° / 13°27528.912.73.6
Sep21° / 13°31926.712.13.8
Oct20° / 11°24820.711.54.6
Nov18° / 11815.311.15.1
Dec17° / 6012.410.85.3

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 21% 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 51%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15149
25050
34951
45050
54951
64951
74753
84753
94753
104753
114753
124753
134753
144852
154852
164951
175050
184951
195050
205050
215149
225050
234951
245149
254951
264951
274852
284852
294753
304654
314654

Chance of precipitation in May

Any precipitation

Zacatlán gets around 139 mm of rain over 20.8 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 67% and peaks near 71% on the wettest days.

0%20%40%60%80%151015202531
Rain chance (%)
168
269
369
470
570
671
771
871
971
1071
1171
1270
1370
1469
1569
1668
1767
1866
1965
2065
2164
2263
2363
2463
2563
2663
2763
2864
2964
3065
3166

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May lands in the comfortable band about 63% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
140573
239583
338584
436604
535614
633625
732635
831645
930646
1029656
1128657
1228657
1328648
1428648
1527658
1627649
1727649
18276310
19276310
20276310
21276310
22276310
23266410
24266410
25266410
26256510
27246610
28246610
29236710
30226711
31216811

Wind in May

Winds average 6 km/h in May.

Across May, daily wind ranges from about 5 km/h on the calmest days to 6 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
16calm
26calm
36calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
196calm
206calm
216calm
226calm
236calm
245calm
255calm
265calm
275calm
285calm
295calm
305calm
315calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 12 h 42 min at the start of May to 13 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 24 minutes over May. Sunrise moves from 6:08 AM to 5:56 AM, and sunset from 6:51 PM to 7:02 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.76:086:51
212.76:076:51
312.86:066:51
412.86:066:52
512.86:056:52
612.86:056:52
712.86:046:53
812.86:036:53
912.86:036:54
1012.96:026:54
1112.96:026:54
1212.96:026:55
1312.96:016:55
1412.96:016:56
1512.96:006:56
1612.96:006:56
1713.05:596:57
1813.05:596:57
1913.05:596:58
2013.05:586:58
2113.05:586:58
2213.05:586:59
2313.05:586:59
2413.05:577:00
2513.05:577:00
2613.15:577:00
2713.15:577:01
2813.15:567:01
2913.15:567:02
3013.15:567:02
3113.15:567:02

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 6.34 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 3.95 kWh/m² to a high of 6.34 kWh/m² in May across the year — May's 6.34 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.3Intense
26.3Intense
36.3Intense
46.3Intense
56.3Intense
66.3Intense
76.3Intense
86.3Intense
96.3Intense
106.3Intense
116.3Intense
126.3Intense
136.3Intense
146.3Intense
156.3Intense
166.3Intense
176.3Intense
186.3Intense
196.3Intense
206.4Intense
216.4Intense
226.4Intense
236.4Intense
246.4Intense
256.4Intense
266.4Intense
276.3Intense
286.3Intense
296.3Intense
306.3Intense
316.3Intense
Planning a trip in May

Hazard calendar for Zacatlán

In seasonPeak

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

Zacatlán's rainy season runs June–October, 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 Zacatlán?

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

5.2
Sightseeing
4th-best month of the year
3.8
Beach & pool
1st-best month of the year

May is a reasonable time to visit Zacatlán for sightseeing.

What to pack for Zacatlán in May

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

In May, Zacatlán sees daytime highs around 23°C and nights near 12°C. Pack rain gear and sun protection. Worth having: light clothes. About 21 days see rain.

rain gearsun protectionlight clothes

UV index in Zacatlán in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 10 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Zacatlán peaks around April 12 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 17 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 12UV 14Dec 17UV 8
UV index (midday)Level
Jan8Very high
Feb11Extreme
Mar13Extreme
Apr14Extreme
May10Very high
Jun14Extreme
Jul12Extreme
Aug14Extreme
Sep11Extreme
Oct10Extreme
Nov8Very high
Dec8Very high

Air quality in Zacatlán 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 Zacatlán is worst in December — around 95 µg/m³ PM2.5 (unhealthy), about 2.0× the cleanest month (September, 49 µg/m³).

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

0306090120JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyPoorUnhealthyDec 2194 µg/m³Sep 1649 µg/m³
PM2.5 (µg/m³)Level
Jan88Unhealthy
Feb89Unhealthy
Mar85Unhealthy
Apr90Unhealthy
May85Unhealthy
Jun59Unhealthy
Jul56Unhealthy
Aug52Poor
Sep49Poor
Oct52Poor
Nov70Unhealthy
Dec95Unhealthy
Location & terrain

Where is Zacatlán?

Zacatlán sits at 19.9°N, 98.0°W, 2,048 m above sea level, in Mexico. The nearest listed city is Chignahuapan, 13 km away.

Topography around Zacatlán

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

Within 3 km, the terrain around Zacatlán has large variations in elevation — a maximum elevation change of 769 m around an average of 2,049 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,999 m; within 80 km, extreme variations in elevation — a maximum elevation change of 4,363 m.

The land around Zacatlán is covered by trees (48%) and cropland (20%) within 3 km, trees (67%) within 16 km, and trees (50%) and cropland (23%) within 80 km.

3 km
769 m
16 km
1,999 m
80 km
4,363 m
treesshrubsgrasslandcroplandartificial surfaces
May weather nearby: Chignahuapan 13 km · Huauchinango 28 km · Xicotepec de Juárez 38 km · Cuautepec de Hinojosa 38 km · Santiago Tulantepec 43 km · Tulancingo 45 km · Zaragoza 46 km · Tetla 57 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 Zacatlán (19.9355°, -97.9613°, elevation 2,048 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).