Santiago weather in July

In July, Santiago sees average daytime highs of 29°C and overnight lows near 18°C, with 88 mm of rain across 10.4 wet days and about 13.4 hours of daylight. It is the 2nd-warmest and 6th-wettest month of the year here.

Day-to-day highs hold fairly steady near 29°C through the month. The sky is clear or mostly clear about 49% of the time in July, and the air most often feels humid.

Daylight stretches from about 13 h 36 min at the start of July to 13 h 12 min by month's end. Set against the rest of the year, July is Santiago's 5th-clearest and 1st-windiest month. For the whole year in context, see Santiago's year-round climate.

Daytime high
29°
2nd warmest
Overnight low
18°
11th coldest
Rainfall
88 mm
10.4 wet days
Daylight
13 h 24 min
6:03 AM – 7:30 PM
Cloud cover
47%
5th clearest
Wind
6 km/h
1st windiest
Solar energy
6.63 kWh/m²
Travel score
5.8
out of 10

Santiago is municipal seat of Santiago, State of Nuevo León, Mexico.

Founded
1648

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in July

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 29°C through the month.

A typical July day in Santiago reaches about 29°C in the afternoon and slips back to 18°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 25°C and 31°C. Set against its neighbours, July runs on par with June and on par with August.

15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12818
22818
32818
42818
52818
62818
72818
82818
92818
102818
112818
122818
132818
142918
152918
162918
172918
182918
192918
202918
212918
222918
232918
242918
252918
262918
272918
282918
292918
302918
312918

Santiago weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan17° / 609.310.65.9
Feb20° / 8410.111.16.3
Mar22° / 11°13114.211.86.2
Apr25° / 14°17215.612.66.1
May27° / 16°1581613.25.9
Jun28° / 18°871113.66.0
Jul29° / 18°8810.413.45.8
Aug29° / 18°6810.412.95.9
Sep26° / 17°19116.212.25.8
Oct24° / 14°10711.111.47.0
Nov20° / 10°669.210.86.7
Dec18° / 477.110.46.3

Cloud cover in July

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 49% of the time in July.

Beyond those clear spells, partly cloudy skies cover about 16% of July, with mostly cloudy or overcast conditions the remaining 35%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15941
25941
36040
45941
55941
66040
76040
86238
96238
106337
116337
126436
136535
146535
156634
166634
176634
186634
196733
206733
216733
226733
236832
246832
256832
266931
277030
287030
297129
307129
317327

Chance of precipitation in July

Any precipitation

Santiago gets around 88 mm of rain over 10.4 wet days in July. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 33% and peaks near 43% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%50%151015202531
Rain chance (%)
143
243
342
442
541
640
739
838
937
1036
1135
1234
1333
1433
1532
1631
1731
1831
1930
2030
2130
2230
2330
2430
2529
2629
2729
2828
2928
3027
3127

Humidity in July

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, July lands in the humid band about 59% of days. Sticky, muggy-or-worse air turns up on roughly 23% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
11115533
21115632
31125631
41125631
51135630
61135828
71145827
81145926
91155925
101156024
111166023
121176022
131176121
141186021
151186120
161186120
171196119
181196119
191206019
201206019
211206019
221215919
231215919
241215919
251215919
261215919
271215919
281215919
291215919
301215919
311215919

Wind in July

Winds average 6 km/h in July, the windiest month of the year.

Across July, daily wind ranges from about 6 km/h on the calmest days to 6 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
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 July

DaylightNight

Daylight runs from about 13 h 36 min at the start of July to 13 h 12 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 24 minutes over July. Sunrise moves from 5:57 AM to 6:10 AM, and sunset from 7:31 PM to 7:23 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.65:577:31
213.65:577:31
313.65:587:31
413.65:587:31
513.55:587:31
613.55:597:31
713.55:597:31
813.56:007:31
913.56:007:31
1013.56:007:31
1113.56:017:31
1213.56:017:30
1313.56:027:30
1413.56:027:30
1513.56:027:30
1613.46:037:30
1713.46:037:29
1813.46:047:29
1913.46:047:29
2013.46:057:28
2113.46:057:28
2213.46:067:28
2313.36:067:27
2413.36:077:27
2513.36:077:26
2613.36:087:26
2713.36:087:25
2813.36:097:25
2913.36:097:24
3013.26:107:24
3113.26:107:23

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 6.63 kWh/m².

For context, solar energy here swings from a low near 3.73 kWh/m² to a high of 6.76 kWh/m² in June across the year — July's 6.63 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.5Intense
26.5Intense
36.5Intense
46.5Intense
56.5Intense
66.5Intense
76.5Intense
86.6Intense
96.6Intense
106.6Intense
116.6Intense
126.6Intense
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
266.7Intense
276.7Intense
286.7Intense
296.8Intense
306.8Intense
316.8Intense
Planning a trip in July

Is July a good time to visit Santiago?

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

5.8
Sightseeing
11th-best month of the year
7.1
Beach & pool
1st-best month of the year

July is a reasonable time to visit Santiago for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Santiago in July

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

In July, Santiago sees daytime highs around 29°C and nights near 18°C. Pack light clothes and sun protection. Worth having: rain gear. About 10 days see rain.

light clothessun protectionrain gear

UV index in Santiago in July

LowModerateHighVery highExtreme

Clear-sky midday UV in July peaks around 11 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Santiago peaks around June 21 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 19 at about 5 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecHighVery highExtremeVery highHighJun 21UV 11Dec 19UV 5
UV index (midday)Level
Jan5High
Feb7Very high
Mar9Very high
Apr11Extreme
May11Extreme
Jun12Extreme
Jul11Extreme
Aug12Extreme
Sep9Very high
Oct8Very high
Nov6High
Dec5Moderate

Air quality in Santiago in July

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Santiago is worst in December — around 24 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateDec 1724 µg/m³Aug 1518 µg/m³
PM2.5 (µg/m³)Level
Jan23Moderate
Feb21Moderate
Mar24Moderate
Apr21Moderate
May22Moderate
Jun20Moderate
Jul19Moderate
Aug18Moderate
Sep20Moderate
Oct20Moderate
Nov22Moderate
Dec24Moderate
Location & terrain

Where is Santiago?

Santiago sits at 25.4°N, 100.2°W, 486 m above sea level, in Mexico. The nearest listed city is Ciudad de Allende, 21 km away.

Topography around Santiago

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

Within 3 km, the terrain around Santiago has significant variations in elevation — a maximum elevation change of 452 m around an average of 513 m above sea level; within 16 km, extreme variations in elevation — a maximum elevation change of 2,598 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,555 m.

The land around Santiago is covered by trees (68%) within 3 km, trees (81%) within 16 km, and shrubs (47%) and trees (36%) within 80 km.

3 km
452 m
16 km
2,598 m
80 km
3,555 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
July weather nearby: Ciudad de Allende 21 km · Jardines de la Silla 23 km · Cadereyta Jiménez 24 km · Cadereyta 24 km · Ciudad Benito Juárez 25 km · Guadalupe 30 km · Monterrey 33 km · San Pedro Garza García 36 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 Santiago (25.426°, -100.154°, elevation 486 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).