Ciudad Serdán weather in May

In May, Ciudad Serdán sees average daytime highs of 22°C and overnight lows near 10°C, with 120 mm of rain across 19 wet days and about 12.9 hours of daylight. It is the 2nd-warmest and 5th-wettest month of the year here.

Day-to-day highs hold fairly steady near 22°C through the month. The sky is clear or mostly clear about 26% 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 Ciudad Serdán's 7th-clearest and 12th-windiest month. For the whole year in context, see Ciudad Serdán's year-round climate.

Daytime high
22°
2nd warmest
Overnight low
10°
10th coldest
Rainfall
120 mm
19 wet days
Daylight
12 h 54 min
5:59 AM – 6:53 PM
Cloud cover
57%
7th clearest
Wind
5 km/h
12th windiest
Solar energy
6.72 kWh/m²
Travel score
5.4
out of 10

Ciudad Serdán is municipal seat of Chalchicomula, State of Puebla, Mexico.

Density
65/km²
people per km²
Founded
1560

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 22°C through the month.

A typical May day in Ciudad Serdán reaches about 22°C in the afternoon and slips back to 10°C overnight — a 12°C spread between the day's warmth and the night's chill. On most days the high lands between 19°C and 25°C. Set against its neighbours, May runs on par with April and about 1°C warmer than June.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12210
22210
32210
42210
52210
62210
72210
82210
92210
102210
112210
122210
132210
142210
152210
162210
172210
182210
192210
202210
212210
222210
232210
242210
252210
262211
272211
282211
292211
302211
312211

Ciudad Serdán weather by month

How May compares with the rest of the year at a glance. May is the 2nd-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan18° / 123.3117.3
Feb20° / 123.111.47.7
Mar21° / 297.611.97.3
Apr22° / 6512.912.46.4
May22° / 10°1201912.95.4
Jun21° / 11°20920.313.14.8
Jul21° / 13016.5135.3
Aug21° / 10°14919.312.65.0
Sep20° / 10°1852112.14.5
Oct20° / 9714.611.65.6
Nov19° / 297.111.16.8
Dec19° / 92.710.97.4

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 26% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 26% of May, with mostly cloudy or overcast conditions the remaining 48%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15941
25941
35842
45743
55743
65545
75545
85446
95347
105347
115248
125248
135248
145248
155248
165248
175248
185248
195248
205248
215149
225149
235149
245050
254951
264951
274852
284753
294555
304456
314357

Chance of precipitation in May

Any precipitation

Ciudad Serdán gets around 120 mm of rain over 19 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 61% and peaks near 64% on the wettest days.

0%20%40%60%151015202531
Rain chance (%)
155
256
357
458
560
661
762
863
963
1064
1164
1264
1364
1464
1563
1662
1762
1861
1960
2060
2159
2259
2359
2459
2559
2659
2759
2860
2960
3061
3162

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 99% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)
11000
21000
31000
41000
51000
61000
71000
81000
91000
101000
111000
121000
13991
14991
15991
16991
17991
18991
19991
20991
21991
22991
23991
24991
25991
26982
27982
28982
29982
30973
31973

Wind in May

Winds average 5 km/h in May, the calmest month.

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
45calm
55calm
65calm
75calm
85calm
95calm
105calm
115calm
125calm
135calm
145calm
155calm
165calm
175calm
185calm
195calm
205calm
215calm
225calm
235calm
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 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 6:07 AM to 5:56 AM, and sunset from 6:47 PM to 6:59 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.76:076:47
212.76:066:48
312.76:056:48
412.76:056:48
512.76:046:49
612.86:046:49
712.86:036:49
812.86:036:50
912.86:026:50
1012.86:026:51
1112.86:016:51
1212.86:016:51
1312.96:006:52
1412.96:006:52
1512.96:006:52
1612.95:596:53
1712.95:596:53
1812.95:596:54
1912.95:586:54
2012.95:586:54
2113.05:586:55
2213.05:576:55
2313.05:576:56
2413.05:576:56
2513.05:576:56
2613.05:566:57
2713.05:566:57
2813.05:566:58
2913.05:566:58
3013.05:566:58
3113.05:566:59

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 6.72 kWh/m².

For context, solar energy here swings from a low near 4.82 kWh/m² to a high of 6.92 kWh/m² in April across the year — May's 6.72 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.9Intense
26.9Intense
36.9Intense
46.9Intense
56.9Intense
66.8Intense
76.8Intense
86.8Intense
96.8Intense
106.8Intense
116.8Intense
126.7Intense
136.7Intense
146.7Intense
156.7Intense
166.7Intense
176.7Intense
186.7Intense
196.7Intense
206.7Intense
216.6Intense
226.6Intense
236.6Intense
246.6Intense
256.6Intense
266.6Intense
276.5Intense
286.5Intense
296.5Intense
306.5Intense
316.4Intense
Planning a trip in May

Hazard calendar for Ciudad Serdán

In seasonPeak

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

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

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

Is May a good time to visit Ciudad Serdán?

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

5.4
Sightseeing
8th-best month of the year
3.7
Beach & pool
4th-best month of the year

May is a reasonable time to visit Ciudad Serdán for sightseeing.

What to pack for Ciudad Serdán in May

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

In May, Ciudad Serdán sees daytime highs around 22°C and nights near 10°C. Pack rain gear and sun protection. About 19 days see rain.

rain gearsun protection

UV index in Ciudad Serdán 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 Ciudad Serdán peaks around April 11 at about 15 (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.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeExtremeVery highApr 11UV 15Dec 15UV 8
UV index (midday)Level
Jan9Very high
Feb12Extreme
Mar14Extreme
Apr15Extreme
May9Very high
Jun14Extreme
Jul13Extreme
Aug14Extreme
Sep13Extreme
Oct12Extreme
Nov9Very high
Dec8Very high

Air quality in Ciudad Serdán 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 Ciudad Serdán is worst in May — around 38 µg/m³ PM2.5 (poor), about 1.9× the cleanest month (January, 20 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateModerateMay 1737 µg/m³Jan 2220 µg/m³
PM2.5 (µg/m³)Level
Jan20Moderate
Feb20Moderate
Mar23Moderate
Apr29Moderate
May38Poor
Jun30Moderate
Jul25Moderate
Aug22Moderate
Sep25Moderate
Oct22Moderate
Nov22Moderate
Dec23Moderate
Location & terrain

Where is Ciudad Serdán?

Ciudad Serdán sits at 19.0°N, 97.4°W, 2,548 m above sea level, in Mexico. The nearest listed city is Palmarito Tochapan, 22 km away.

Topography around Ciudad Serdán

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

Within 3 km, the terrain around Ciudad Serdán has significant variations in elevation — a maximum elevation change of 273 m around an average of 2,591 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 2,346 m; within 80 km, extreme variations in elevation — a maximum elevation change of 5,479 m.

The land around Ciudad Serdán is covered by grassland (37%) and cropland (26%) within 3 km, cropland (41%) and grassland (30%) within 16 km, and trees (36%), shrubs (23%) and cropland (21%) within 80 km.

3 km
273 m
16 km
2,346 m
80 km
5,479 m
treesshrubsgrasslandcroplandartificial surfacesbare terrain
May weather nearby: Palmarito Tochapan 22 km · San Salvador El Seco 26 km · Tecamachalco 32 km · Ciudad Mendoza 35 km · Nogales 35 km · Río Blanco 35 km · Acatzingo 35 km · Los Reyes de Juárez 38 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 Ciudad Serdán (18.9886°, -97.4464°, elevation 2,548 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).