Guanajuato weather in August

In August, Guanajuato sees average daytime highs of 26°C and overnight lows near 14°C, with 141 mm of rain across 15.9 wet days and about 12.7 hours of daylight. It is the 5th-warmest and 2nd-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 25% 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 Guanajuato's 10th-clearest and 7th-windiest month. For the whole year in context, see Guanajuato's year-round climate.

Daytime high
26°
5th warmest
Overnight low
14°
10th coldest
Rainfall
141 mm
15.9 wet days
Daylight
12 h 42 min
6:27 AM – 7:11 PM
Cloud cover
61%
10th clearest
Wind
10 km/h
7th windiest
Solar energy
6.31 kWh/m²
Travel score
5.8
out of 10

Guanajuato is capital city of the State of Guanajuato, Mexico.

Density
72/km²
people per km²
Founded
1546

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 Guanajuato reaches about 26°C in the afternoon and slips back to 14°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 23°C and 28°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)
12614
22614
32614
42614
52614
62614
72614
82614
92614
102614
112614
122614
132614
142614
152614
162614
172614
182514
192514
202514
212514
222514
232514
242514
252514
262514
272514
282514
292514
302514
312514

Guanajuato weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan22° / 132.410.98.1
Feb24° / 13211.38.6
Mar26° / 11°132.211.98.3
Apr29° / 13°14312.56.9
May29° / 15°488.5135.8
Jun28° / 15°13314.313.35.5
Jul26° / 14°16017.713.15.6
Aug26° / 14°14115.912.75.8
Sep25° / 14°13114.412.16.1
Oct25° / 12°47711.57.5
Nov24° / 10°132.5118.6
Dec22° / 61.410.78.4

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 25% 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 53%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15446
25446
35446
45446
55446
65446
75347
85347
95248
105149
115050
124951
134852
144753
154654
164654
174555
184555
194456
204456
214357
224357
234258
244258
254159
264060
274060
284060
293961
303961
313862

Chance of precipitation in August

Any precipitation

Guanajuato gets around 141 mm of rain over 15.9 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 52% and peaks near 55% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
150
249
349
449
548
648
748
849
949
1050
1151
1251
1352
1452
1552
1653
1753
1854
1954
2054
2155
2255
2355
2455
2555
2655
2755
2855
2955
3055
3155

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 51% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
151472
251472
351472
451472
551472
651472
751472
850482
950482
1049482
1149493
1248493
1348493
1448493
1547493
1647503
1746504
1846504
1945514
2045514
2144515
2243525
2342535
2441545
2540555
2639556
2739556
2838566
2937576
3037576
3137576

Wind in August

Winds average 10 km/h in August.

Across August, daily wind ranges from about 9 km/h on the calmest days to 10 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
1010calm
1110calm
1210calm
1310calm
1410calm
1510calm
1610calm
1710calm
1810calm
1910calm
2010calm
2110calm
2210calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm
319calm

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 6:22 AM to 6:32 AM, and sunset from 7:20 PM to 6:58 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.06:227:20
213.06:227:20
312.96:237:19
412.96:237:19
512.96:247:18
612.96:247:17
712.96:247:17
812.96:257:16
912.86:257:16
1012.86:257:15
1112.86:267:14
1212.86:267:14
1312.86:267:13
1412.86:277:12
1512.76:277:12
1612.76:277:11
1712.76:287:10
1812.76:287:09
1912.76:287:09
2012.76:297:08
2112.66:297:07
2212.66:297:06
2312.66:307:05
2412.66:307:05
2512.66:307:04
2612.56:307:03
2712.56:317:02
2812.56:317:01
2912.56:317:00
3012.56:326:59
3112.46:326:58

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 6.31 kWh/m².

For context, solar energy here swings from a low near 4.82 kWh/m² to a high of 7.54 kWh/m² in April across the year — August's 6.31 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
16.6Intense
26.6Intense
36.6Intense
46.6Intense
56.5Intense
66.5Intense
76.5Intense
86.5Intense
96.5Intense
106.4Intense
116.4Intense
126.4Intense
136.4Intense
146.3Intense
156.3Intense
166.3Intense
176.3Intense
186.2Intense
196.2Intense
206.2Intense
216.1Intense
226.1Intense
236.1Intense
246.0Intense
256.0Intense
266.0Bright
276.0Bright
285.9Bright
295.9Bright
305.9Bright
315.8Bright
Planning a trip in August

Hazard calendar for Guanajuato

In seasonPeak

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

Guanajuato'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 Guanajuato?

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

5.8
Sightseeing
9th-best month of the year
5.4
Beach & pool
11th-best month of the year

August is a reasonable time to visit Guanajuato for sightseeing.

What to pack for Guanajuato in August

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

In August, Guanajuato sees daytime highs around 26°C and nights near 14°C. Pack rain gear and sun protection. Worth having: light clothes. About 16 days see rain.

rain gearsun protectionlight clothes

UV index in Guanajuato in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 14 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Guanajuato peaks around June 12 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 12UV 14Dec 15UV 7
UV index (midday)Level
Jan8Very high
Feb10Extreme
Mar13Extreme
Apr14Extreme
May13Extreme
Jun14Extreme
Jul12Extreme
Aug14Extreme
Sep12Extreme
Oct11Extreme
Nov8Very high
Dec7Very high

Air quality in Guanajuato in August

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where August falls, not just the annual average.

Air quality in Guanajuato is worst in May — around 21 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateMay 1521 µg/m³Oct 1614 µg/m³
PM2.5 (µg/m³)Level
Jan19Moderate
Feb17Moderate
Mar17Moderate
Apr17Moderate
May21Moderate
Jun15Moderate
Jul17Moderate
Aug15Moderate
Sep16Moderate
Oct13Moderate
Nov16Moderate
Dec20Moderate
Location & terrain

Where is Guanajuato?

Guanajuato sits at 21.0°N, 101.3°W, 2,010 m above sea level, in Mexico. The nearest listed city is Marfil, 4.0 km away.

Topography around Guanajuato

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

Within 3 km, the terrain around Guanajuato has significant variations in elevation — a maximum elevation change of 488 m around an average of 2,135 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,169 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,273 m.

The land around Guanajuato is covered by shrubs (49%) and artificial surfaces (25%) within 3 km, shrubs (44%), trees (23%) and grassland (21%) within 16 km, and shrubs (39%) and cropland (34%) within 80 km.

3 km
488 m
16 km
1,169 m
80 km
1,273 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
August weather nearby: Marfil 4.0 km · Silao de la Victoria 19 km · Romita 31 km · Dolores Hidalgo 37 km · Irapuato 40 km · Medina 40 km · León de los Aldama 45 km · Juventino Rosas 50 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 Guanajuato (21.0186°, -101.2591°, elevation 2,010 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).