San Miguel de Allende weather in August

In August, San Miguel de Allende sees average daytime highs of 26°C and overnight lows near 15°C, with 101 mm of rain across 12.6 wet days and about 12.7 hours of daylight. It is the 6th-warmest and 3rd-wettest month of the year here.

Day-to-day highs hold fairly steady near 26°C through the month. The sky is clear or mostly clear about 27% of the time in August, and the air most often feels comfortable.

Daylight stretches from about 13 hours at the start of August to 12 h 24 min by month's end. Set against the rest of the year, August is San Miguel de Allende's 10th-clearest and 7th-windiest month. For the whole year in context, see San Miguel de Allende's year-round climate.

Daytime high
26°
6th warmest
Overnight low
15°
11th coldest
Rainfall
101 mm
12.6 wet days
Daylight
12 h 42 min
6:25 AM – 7:09 PM
Cloud cover
59%
10th clearest
Wind
9 km/h
7th windiest
Solar energy
6.28 kWh/m²
Travel score
6.2
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 August

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 26°C through the month.

A typical August day in San Miguel de Allende reaches about 26°C in the afternoon and slips back to 15°C overnight — a 12°C spread between the day's warmth and the night's chill. On most days the high lands between 24°C and 29°C. Set against its neighbours, August runs on par with July and about 1°C warmer than September.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12715
22715
32715
42715
52715
62715
72715
82715
92715
102715
112715
122715
132715
142615
152615
162615
172615
182615
192615
202615
212615
222615
232615
242615
252615
262615
272615
282615
292615
302615
312615

San Miguel de Allende weather by month

How August compares with the rest of the year at a glance. August is the 6th-warmest and 3rd-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 August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 27% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 22% of August, with mostly cloudy or overcast conditions the remaining 51%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15842
25842
35842
45842
55842
65842
75644
85644
95545
105446
115347
125248
135149
145050
154951
164753
174753
184654
194654
204555
214555
224456
234357
244258
254258
264258
274258
284060
294060
304060
313961

Chance of precipitation in August

Any precipitation

San Miguel de Allende gets around 101 mm of rain over 12.6 wet days in August. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 42% and peaks near 44% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
139
239
339
438
538
638
738
839
939
1040
1140
1241
1341
1442
1542
1643
1743
1843
1944
2044
2144
2244
2344
2444
2544
2644
2744
2844
2943
3043
3144

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, August lands in the comfortable band about 50% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
150473
251472
351472
451472
551472
650482
750482
850482
950483
1049483
1149483
1248483
1348484
1447494
1547495
1646495
1745495
1845506
1944506
2043516
2143516
2242526
2341527
2441527
2540537
2639547
2738557
2838557
2937558
3037558
3137558

Wind in August

Winds average 9 km/h in August.

Across August, 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
18calm
28calm
39calm
49calm
59calm
69calm
79calm
89calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
298calm
308calm
318calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 13 hours at the start of August to 12 h 24 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 36 minutes over August. Sunrise moves from 6:20 AM to 6:30 AM, and sunset from 7:18 PM to 6:56 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.06:207:18
212.96:207:17
312.96:217:17
412.96:217:16
512.96:227:16
612.96:227:15
712.96:227:15
812.96:237:14
912.86:237:13
1012.86:237:13
1112.86:247:12
1212.86:247:12
1312.86:247:11
1412.86:257:10
1512.76:257:09
1612.76:257:09
1712.76:267:08
1812.76:267:07
1912.76:267:06
2012.66:277:06
2112.66:277:05
2212.66:277:04
2312.66:287:03
2412.66:287:02
2512.66:287:02
2612.56:287:01
2712.56:297:00
2812.56:296:59
2912.56:296:58
3012.56:306:57
3112.46:306:56

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 6.28 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 — August's 6.28 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
16.6Intense
26.6Intense
36.6Intense
46.5Intense
56.5Intense
66.5Intense
76.5Intense
86.5Intense
96.4Intense
106.4Intense
116.4Intense
126.4Intense
136.3Intense
146.3Intense
156.3Intense
166.3Intense
176.2Intense
186.2Intense
196.2Intense
206.1Intense
216.1Intense
226.1Intense
236.0Intense
246.0Intense
256.0Bright
266.0Bright
275.9Bright
285.9Bright
295.8Bright
305.8Bright
315.8Bright
Planning a trip in August

Hazard calendar for San Miguel de Allende

In seasonPeak

In August, San Miguel de Allende sits inside its rainy season season. The full year is below, with each hazard's peak months called out.

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 August a good time to visit San Miguel de Allende?

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

6.2
Sightseeing
9th-best month of the year
6.0
Beach & pool
9th-best month of the year

August 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 August

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

In August, San Miguel de Allende sees daytime highs around 26°C and nights near 15°C. Pack sun protection. Worth having: light clothes and rain gear. About 13 days see rain.

sun protectionlight clothesrain gear

UV index in San Miguel de Allende in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August 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
August 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).