San Salvador El Seco weather in May

In May, San Salvador El Seco sees average daytime highs of 23°C and overnight lows near 11°C, with 113 mm of rain across 16.7 wet days and about 12.9 hours of daylight. It is the 2nd-warmest and 4th-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 28% 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 h 06 min by month's end. Set against the rest of the year, May is San Salvador El Seco's 7th-clearest and 12th-windiest month. For the whole year in context, see San Salvador El Seco's year-round climate.

Daytime high
23°
2nd warmest
Overnight low
11°
9th coldest
Rainfall
113 mm
16.7 wet days
Daylight
12 h 54 min
6:00 AM – 6:54 PM
Cloud cover
54%
7th clearest
Wind
6 km/h
12th windiest
Solar energy
6.74 kWh/m²
Travel score
6.0
out of 10

San Salvador El Seco is municipal seat of San Salvador el Seco, 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 23°C through the month.

A typical May day in San Salvador El Seco reaches about 23°C in the afternoon and slips back to 11°C overnight — a 13°C spread between the day's warmth and the night's chill. On most days the high lands between 20°C and 27°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)
12410
22410
32410
42410
52410
62410
72410
82410
92310
102310
112310
122310
132310
142310
152311
162311
172311
182311
192311
202311
212311
222311
232311
242311
252311
262311
272311
282311
292311
302311
312311

San Salvador El Seco weather by month

How May compares with the rest of the year at a glance. May is the 2nd-warmest and 4th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan19° / 153.1117.6
Feb21° / 153.111.48.0
Mar23° / 397.811.97.6
Apr24° / 721212.46.8
May23° / 11°11316.712.96.0
Jun23° / 11°15716.713.15.6
Jul22° / 10°10613.9136.0
Aug23° / 11°11814.812.65.9
Sep21° / 11°14216.412.15.3
Oct21° / 10°7610.611.66.4
Nov21° / 285.311.17.3
Dec20° / 112.410.97.8

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 28% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 30% of May, with mostly cloudy or overcast conditions the remaining 42%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16436
26436
36436
46337
56337
66238
76139
86040
96040
105941
115941
125842
135842
145842
155842
165842
175842
185941
195941
205842
215941
225842
235743
245743
255644
265644
275446
285446
295248
305149
315050

Chance of precipitation in May

Any precipitation

San Salvador El Seco gets around 113 mm of rain over 16.7 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 53% and peaks near 58% on the wettest days.

0%20%40%60%151015202531
Rain chance (%)
150
251
352
454
555
656
757
858
958
1058
1158
1258
1358
1457
1557
1656
1755
1854
1953
2052
2151
2251
2350
2449
2549
2649
2749
2849
2949
3050
3150

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
2991
3991
4991
5991
6991
7991
8991
9991
10991
11991
12991
13991
14991
15991
16991
17991
18991
19991
20991
21991
22991
23991
24991
25982
26982
27982
28973
29973
30964
31955

Wind in May

Winds average 6 km/h in May, the calmest month.

Across May, daily wind ranges from about 6 km/h on the calmest days to 7 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
17calm
27calm
37calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm
316calm

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 6:07 AM to 5:56 AM, and sunset from 6:48 PM to 7:00 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.76:076:48
212.76:076:49
312.76:066:49
412.76:056:49
512.76:056:50
612.86:046:50
712.86:046:50
812.86:036:51
912.86:036:51
1012.86:026:52
1112.86:026:52
1212.86:016:52
1312.96:016:53
1412.96:016:53
1512.96:006:53
1612.96:006:54
1712.95:596:54
1812.95:596:55
1912.95:596:55
2012.95:586:55
2113.05:586:56
2213.05:586:56
2313.05:586:57
2413.05:576:57
2513.05:576:57
2613.05:576:58
2713.05:576:58
2813.05:576:59
2913.05:566:59
3013.05:566:59
3113.15:567:00

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 6.74 kWh/m².

For context, solar energy here swings from a low near 4.92 kWh/m² to a high of 6.91 kWh/m² in April across the year — May's 6.74 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.9Intense
26.9Intense
36.8Intense
46.8Intense
56.8Intense
66.8Intense
76.8Intense
86.8Intense
96.8Intense
106.8Intense
116.7Intense
126.7Intense
136.7Intense
146.7Intense
156.7Intense
166.7Intense
176.7Intense
186.7Intense
196.7Intense
206.7Intense
216.7Intense
226.7Intense
236.7Intense
246.7Intense
256.7Intense
266.6Intense
276.6Intense
286.6Intense
296.5Intense
306.5Intense
316.5Intense
Planning a trip in May

Hazard calendar for San Salvador El Seco

In seasonPeak

In May, San Salvador El Seco sits inside its rainy season season. The full year is below, with each hazard's peak months called out.

San Salvador El Seco's rainy season runs April–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 San Salvador El Seco?

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

6.0
Sightseeing
8th-best month of the year
4.8
Beach & pool
4th-best month of the year

May is a reasonable time to visit San Salvador El Seco for sightseeing.

What to pack for San Salvador El Seco in May

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

In May, San Salvador El Seco sees daytime highs around 23°C and nights near 11°C. Pack rain gear and sun protection. Worth having: light clothes. About 17 days see rain.

rain gearsun protectionlight clothes

UV index in San Salvador El Seco 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 San Salvador El Seco 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.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highApr 11UV 15Dec 15UV 8
UV index (midday)Level
Jan9Very high
Feb12Extreme
Mar14Extreme
Apr15Extreme
May10Extreme
Jun14Extreme
Jul13Extreme
Aug14Extreme
Sep13Extreme
Oct12Extreme
Nov9Very high
Dec8Very high

Air quality in San Salvador El Seco 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 San Salvador El Seco is worst in May — around 69 µg/m³ PM2.5 (unhealthy), about 1.9× the cleanest month (October, 38 µg/m³).

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

020406080JanFebMarAprMayJunJulAugSepOctNovDecPoorUnhealthyPoorUnhealthyMay 1268 µg/m³Oct 1138 µg/m³
PM2.5 (µg/m³)Level
Jan53Poor
Feb54Poor
Mar56Unhealthy
Apr63Unhealthy
May69Unhealthy
Jun48Poor
Jul41Poor
Aug38Poor
Sep39Poor
Oct38Poor
Nov49Poor
Dec59Unhealthy
Location & terrain

Where is San Salvador El Seco?

San Salvador El Seco sits at 19.1°N, 97.6°W, 2,437 m above sea level, in Mexico. The nearest listed city is Acatzingo, 22 km away.

Topography around San Salvador El Seco

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of San Salvador El Seco.

Within 3 km, the terrain around San Salvador El Seco has only modest variations in elevation — a maximum elevation change of 244 m around an average of 2,387 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 750 m; within 80 km, extreme variations in elevation — a maximum elevation change of 4,927 m.

The land around San Salvador El Seco is covered by cropland (48%) and shrubs (22%) within 3 km, cropland (42%) and grassland (24%) within 16 km, and trees (32%), cropland (24%) and shrubs (20%) within 80 km.

3 km
244 m
16 km
750 m
80 km
4,927 m
treesshrubsgrasslandcroplandartificial surfacesbare terrain
May weather nearby: Acatzingo 22 km · Palmarito Tochapan 26 km · Ciudad Serdán 26 km · Los Reyes de Juárez 27 km · Tecamachalco 29 km · Acajete 33 km · Tepeaca 33 km · Tepatlaxco de Hidalgo 35 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 San Salvador El Seco (19.1333°, -97.6417°, elevation 2,437 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).