Valle de Santiago weather in August

In August, Valle de Santiago sees average daytime highs of 28°C and overnight lows near 16°C, with 146 mm of rain across 18 wet days and about 12.7 hours of daylight. It is the 6th-warmest and 2nd-wettest month of the year here.

Day-to-day highs hold fairly steady near 28°C through the month. The sky is clear or mostly clear about 19% of the time in August, and the air most often feels comfortable.

Daylight stretches from about 12 h 54 min at the start of August to 12 h 24 min by month's end. Set against the rest of the year, August is Valle de Santiago's 10th-clearest and 10th-windiest month. For the whole year in context, see Valle de Santiago's year-round climate.

Daytime high
28°
6th warmest
Overnight low
16°
9th coldest
Rainfall
146 mm
18 wet days
Daylight
12 h 42 min
6:28 AM – 7:10 PM
Cloud cover
64%
10th clearest
Wind
7 km/h
10th windiest
Solar energy
6.23 kWh/m²
Travel score
5.2
out of 10

Valle de Santiago is municipal seat of Valle de Santiago, State of Guanajuato, Mexico.

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 28°C through the month.

A typical August day in Valle de Santiago reaches about 28°C in the afternoon and slips back to 16°C overnight — a 12°C spread between the day's warmth and the night's chill. On most days the high lands between 25°C and 30°C. Set against its neighbours, August runs on par with July and on par with September.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12816
22816
32816
42816
52816
62816
72816
82816
92816
102816
112816
122816
132816
142816
152816
162816
172816
182716
192716
202716
212716
222716
232716
242716
252716
262716
272716
282716
292716
302716
312716

How August really feels in Valle de Santiago

Once humidity and wind are folded in, August averages 0 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
0
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

August sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Valle de Santiago weather by month

How August compares with the rest of the year at a glance. August is the 6th-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan25° / 101.910.98.6
Feb27° / 10°122.111.38.2
Mar29° / 12°111.811.96.9
Apr31° / 14°92.212.55.3
May32° / 16°376.3134.4
Jun30° / 17°13514.713.24.4
Jul28° / 16°17020.313.14.9
Aug28° / 16°1461812.75.2
Sep27° / 15°1221612.15.5
Oct27° / 14°396.911.57.0
Nov26° / 11°132.5118.2
Dec25° / 41.110.88.7

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 19% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 25% of August, with mostly cloudy or overcast conditions the remaining 56%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15050
25050
35149
45050
55149
65050
75050
84951
94951
104852
114753
124753
134555
144555
154555
164456
174357
184258
194258
204159
214159
224060
234060
243961
254060
263961
273961
283862
293862
303862
313763

Chance of precipitation in August

Any precipitation

Valle de Santiago gets around 146 mm of rain over 18 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 59% and peaks near 61% on the wettest days.

0%20%40%60%151015202531
Rain chance (%)
158
258
357
457
557
657
757
858
958
1058
1158
1259
1359
1459
1559
1659
1759
1859
1960
2060
2160
2260
2360
2460
2560
2660
2760
2860
2961
3061
3161

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 54% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
1175825
2175825
3185725
4185824
5185824
6185824
7185725
8185725
9185725
10185626
11185527
12185527
13175528
14175528
15175528
16175429
17175429
18165430
19165331
20165331
21165232
22155233
23155233
24155134
25145234
26145135
27145036
28145036
29135037
30134937
31134938

Wind in August

Winds average 7 km/h in August.

Across August, 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
16calm
26calm
36calm
46calm
56calm
66calm
76calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm
317calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 12 h 54 min 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 30 minutes over August. Sunrise moves from 6:23 AM to 6:32 AM, and sunset from 7:19 PM to 6:58 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.96:237:19
212.96:237:18
312.96:237:18
412.96:247:17
512.96:247:17
612.96:247:16
712.86:257:16
812.86:257:15
912.86:267:15
1012.86:267:14
1112.86:267:13
1212.86:277:13
1312.86:277:12
1412.76:277:11
1512.76:277:11
1612.76:287:10
1712.76:287:09
1812.76:287:08
1912.66:297:08
2012.66:297:07
2112.66:297:06
2212.66:307:05
2312.66:307:05
2412.66:307:04
2512.56:307:03
2612.56:317:02
2712.56:317:01
2812.56:317:00
2912.56:316:59
3012.46:326:59
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 6.23 kWh/m².

For context, solar energy here swings from a low near 4.83 kWh/m² to a high of 7.47 kWh/m² in April across the year — August's 6.23 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
16.5Intense
26.5Intense
36.5Intense
46.5Intense
56.5Intense
66.4Intense
76.4Intense
86.4Intense
96.4Intense
106.3Intense
116.3Intense
126.3Intense
136.3Intense
146.3Intense
156.2Intense
166.2Intense
176.2Intense
186.2Intense
196.1Intense
206.1Intense
216.1Intense
226.1Intense
236.0Intense
246.0Intense
256.0Bright
266.0Bright
275.9Bright
285.9Bright
295.9Bright
305.9Bright
315.8Bright
Planning a trip in August

Hazard calendar for Valle de Santiago

In seasonPeak

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

Valle de Santiago'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 Valle de Santiago?

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

5.2
Sightseeing
9th-best month of the year
5.4
Beach & pool
11th-best month of the year

August is a reasonable time to visit Valle de Santiago for sightseeing.

What to pack for Valle de Santiago in August

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

In August, Valle de Santiago sees daytime highs around 28°C and nights near 16°C. Pack light clothes, rain gear and sun protection. About 18 days see rain.

light clothesrain gearsun protection

UV index in Valle de Santiago 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 Valle de Santiago peaks around June 14 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 14UV 14Dec 15UV 7
UV index (midday)Level
Jan8Very high
Feb10Extreme
Mar13Extreme
Apr13Extreme
May13Extreme
Jun14Extreme
Jul12Extreme
Aug13Extreme
Sep11Extreme
Oct10Extreme
Nov8Very high
Dec7Very high

Air quality in Valle de Santiago 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 Valle de Santiago is worst in May — around 27 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateMay 1226 µg/m³Oct 1517 µg/m³
PM2.5 (µg/m³)Level
Jan24Moderate
Feb23Moderate
Mar20Moderate
Apr24Moderate
May27Moderate
Jun18Moderate
Jul21Moderate
Aug18Moderate
Sep19Moderate
Oct17Moderate
Nov21Moderate
Dec26Moderate
Location & terrain

Where is Valle de Santiago?

Valle de Santiago sits at 20.4°N, 101.2°W, 1,792 m above sea level, in Mexico. The nearest listed city is Jaral del Progreso, 13 km away.

Topography around Valle de Santiago

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

Within 3 km, the terrain around Valle de Santiago has only modest variations in elevation — a maximum elevation change of 162 m around an average of 1,746 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 763 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,584 m.

The land around Valle de Santiago is covered by cropland (40%) and artificial surfaces (34%) within 3 km, cropland (51%) within 16 km, and cropland (37%) and shrubs (23%) within 80 km.

3 km
162 m
16 km
763 m
80 km
1,584 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
August weather nearby: Jaral del Progreso 13 km · Salamanca 20 km · Yuriria 21 km · Villagrán 24 km · Cortazar 26 km · Uriangato 28 km · Moroleón 29 km · Juventino Rosas 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 Valle de Santiago (20.3915°, -101.191°, elevation 1,792 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).