San Miguel de Allende weather in May

In May, San Miguel de Allende sees average daytime highs of 30°C and overnight lows near 14°C, with 44 mm of rain across 7.6 wet days and about 13 hours of daylight. It is the 1st-warmest and 5th-wettest month of the year here.

Day-to-day highs hold fairly steady near 30°C through the month. The sky is clear or mostly clear about 50% of the time in May, and the air most often feels dry.

Daylight stretches from about 12 h 48 min at the start of May to 13 h 12 min by month's end. Set against the rest of the year, May is San Miguel de Allende's 6th-clearest and 8th-windiest month. For the whole year in context, see San Miguel de Allende's year-round climate.

Daytime high
30°
1st warmest
Overnight low
14°
9th coldest
Rainfall
44 mm
7.6 wet days
Daylight
13 hours
6:09 AM – 7:09 PM
Cloud cover
43%
6th clearest
Wind
9 km/h
8th windiest
Solar energy
7.42 kWh/m²
Travel score
5.5
out of 10

San Miguel de Allende is municipal seat of Allende, State of Guanajuato, Mexico.

Air quality
Moderate
PM2.5 12 µg/m³ · 2018
Founded
1542

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 30°C through the month.

A typical May day in San Miguel de Allende reaches about 30°C in the afternoon and slips back to 14°C overnight — a 16°C spread between the day's warmth and the night's chill. On most days the high lands between 26°C and 33°C. Set against its neighbours, May runs on par with April and about 2°C warmer than June.

10°15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13014
23014
33014
43014
53014
63014
73014
83014
93014
103014
113014
123014
133014
143014
153014
163014
173014
183014
193014
203015
213015
223015
233015
243015
253015
263015
273015
283015
293015
303015
313015

San Miguel de Allende weather by month

How May compares with the rest of the year at a glance. May is the 1st-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan22° / 122.310.98.3
Feb25° / 13211.38.6
Mar27° / 10°122.211.98.0
Apr29° / 13°153.712.56.3
May30° / 14°447.6135.5
Jun28° / 15°10312.113.25.6
Jul26° / 15°11214.813.15.9
Aug26° / 15°10112.612.76.2
Sep25° / 14°10012.212.16.3
Oct25° / 12°376.411.57.5
Nov24° / 10°122.3118.6
Dec23° / 4110.88.6

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 50% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 24% of May, with mostly cloudy or overcast conditions the remaining 26%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17030
27030
37030
47030
57030
67129
77129
87129
97228
107327
117327
127327
137426
147426
157624
167624
177624
187624
197624
207723
217723
227723
237822
247723
257723
267723
277723
287723
297525
307525
317426

Chance of precipitation in May

Any precipitation

San Miguel de Allende gets around 44 mm of rain over 7.6 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 24% and peaks near 28% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%40%151015202531
Rain chance (%)
116
217
317
418
519
620
721
822
923
1023
1124
1224
1324
1424
1524
1625
1725
1825
1926
2026
2126
2226
2326
2426
2526
2627
2727
2827
2927
3028
3128

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 90% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
19820
29820
39730
49730
59640
69640
79550
89550
99460
109460
119460
129370
139370
149280
159280
169190
179190
1890100
1989110
2089110
2188120
2287130
2386140
2485150
2584160
2682171
2781181
2880191
2979201
3078211
3177221

Wind in May

Winds average 9 km/h in May.

Across May, daily wind ranges from about 8 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
49calm
59calm
69calm
79calm
89calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
198calm
208calm
218calm
228calm
238calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm
318calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 12 h 48 min at the start of May to 13 h 12 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 6:17 AM to 6:05 AM, and sunset from 7:03 PM to 7:15 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.86:177:03
212.86:177:03
312.86:167:04
412.86:167:04
512.86:157:04
612.86:147:05
712.96:147:05
812.96:137:06
912.96:137:06
1012.96:127:06
1112.96:127:07
1212.96:117:07
1312.96:117:08
1413.06:107:08
1513.06:107:09
1613.06:097:09
1713.06:097:09
1813.06:097:10
1913.06:087:10
2013.06:087:11
2113.16:087:11
2213.16:077:12
2313.16:077:12
2413.16:077:12
2513.16:077:13
2613.16:067:13
2713.16:067:14
2813.16:067:14
2913.16:067:15
3013.26:067:15
3113.26:057:15

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 7.42 kWh/m².

For context, solar energy here swings from a low near 4.75 kWh/m² to a high of 7.44 kWh/m² in April across the year — May's 7.42 kWh/m² sits near the top of that range.

02468151015202531
Solar energy (kWh/m²)Level
17.5Intense
27.5Intense
37.5Intense
47.5Intense
57.5Intense
67.5Intense
77.5Intense
87.5Intense
97.5Intense
107.4Intense
117.4Intense
127.4Intense
137.4Intense
147.4Intense
157.4Intense
167.4Intense
177.4Intense
187.4Intense
197.4Intense
207.4Intense
217.4Intense
227.4Intense
237.4Intense
247.4Intense
257.3Intense
267.3Intense
277.3Intense
287.3Intense
297.3Intense
307.2Intense
317.2Intense
Planning a trip in May

Hazard calendar for San Miguel de Allende

In seasonPeak

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

San Miguel de Allende'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 San Miguel de Allende?

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

5.5
Sightseeing
12th-best month of the year
7.5
Beach & pool
3rd-best month of the year

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

What to pack for San Miguel de Allende in May

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

In May, San Miguel de Allende sees daytime highs around 30°C and nights near 14°C. Pack light clothes and sun protection. About 8 days see rain.

light clothessun protection

UV index in San Miguel de Allende in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 13 (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 Miguel de Allende peaks around June 13 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 15 at about 7 (very high).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeVery highJun 13UV 14Dec 15UV 7
UV index (midday)Level
Jan8Very high
Feb10Extreme
Mar13Extreme
Apr13Extreme
May13Extreme
Jun14Extreme
Jul12Extreme
Aug13Extreme
Sep11Extreme
Oct11Extreme
Nov8Very high
Dec7Very high
Location & terrain

Where is San Miguel de Allende?

San Miguel de Allende sits at 20.9°N, 100.7°W, 1,917 m above sea level, in Mexico. The nearest listed city is Comonfort, 22 km away.

Topography around San Miguel de Allende

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of San Miguel de Allende.

Within 3 km, the terrain around San Miguel de Allende has significant variations in elevation — a maximum elevation change of 296 m around an average of 1,958 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 997 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,147 m.

The land around San Miguel de Allende is covered by artificial surfaces (42%) and shrubs (35%) within 3 km, shrubs (54%) and cropland (21%) within 16 km, and shrubs (47%) and cropland (28%) within 80 km.

3 km
296 m
16 km
997 m
80 km
2,147 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
May weather nearby: Comonfort 22 km · Dolores Hidalgo 33 km · Santa Rosa Jáuregui 36 km · San José Iturbide 38 km · Juventino Rosas 40 km · Apaseo el Grande 42 km · Celaya 44 km · San Luis de la Paz 49 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 Miguel de Allende (20.9153°, -100.7439°, elevation 1,917 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).