Río Grande weather in July

In July, Río Grande sees average daytime highs of 27°C and overnight lows near 16°C, with 78 mm of rain across 11.2 wet days and about 13.3 hours of daylight. It is the 4th-warmest and 2nd-wettest month of the year here.

Day-to-day highs hold fairly steady near 27°C through the month. The sky is clear or mostly clear about 41% of the time in July, and the air most often feels dry.

Daylight stretches from about 13 h 30 min at the start of July to 13 h 06 min by month's end. Set against the rest of the year, July is Río Grande's 11th-clearest and 6th-windiest month. For the whole year in context, see Río Grande's year-round climate.

Daytime high
27°
4th warmest
Overnight low
16°
11th coldest
Rainfall
78 mm
11.2 wet days
Daylight
13 h 18 min
6:18 AM – 7:38 PM
Cloud cover
52%
11th clearest
Wind
12 km/h
6th windiest
Solar energy
7 kWh/m²
Travel score
6.4
out of 10

Río Grande is Mexican town in the state of Zacatecas.

Founded
1562

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 27°C through the month.

A typical July day in Río Grande reaches about 27°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 24°C and 31°C. Set against its neighbours, July runs about 2°C cooler than June and on par with August.

10°15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12816
22716
32716
42716
52716
62716
72716
82716
92716
102716
112716
122716
132716
142716
152716
162716
172716
182716
192716
202716
212716
222716
232716
242716
252716
262716
272716
282716
292716
302716
312716

Río Grande weather by month

How July compares with the rest of the year at a glance. July is the 4th-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan20° / 132.410.77.8
Feb23° / 111.611.28.5
Mar25° / 81.411.88.5
Apr28° / 12°71.612.57.4
May30° / 15°153.213.16.2
Jun29° / 16°568.513.46.0
Jul27° / 16°7811.213.36.4
Aug27° / 16°7010.912.86.5
Sep25° / 15°8611.812.16.6
Oct25° / 12°284.811.48.1
Nov23° / 112.210.88.5
Dec21° / 81.810.68.0

Cloud cover in July

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 41% of the time in July.

Beyond those clear spells, partly cloudy skies cover about 22% of July, with mostly cloudy or overcast conditions the remaining 36%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16139
26040
36040
46040
56040
66040
76040
86139
96139
106238
116238
126337
136337
146436
156436
166535
176535
186535
196535
206535
216535
226535
236535
246535
256535
266634
276634
286634
296832
306832
316832

Chance of precipitation in July

Any precipitation

Río Grande gets around 78 mm of rain over 11.2 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 35% and peaks near 38% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
137
237
337
438
538
638
738
838
938
1037
1137
1237
1336
1436
1535
1635
1735
1834
1934
2034
2134
2234
2334
2434
2533
2633
2733
2832
2932
3032
3133

Humidity in July

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, July lands in the dry band about 70% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
167303
267303
367303
467303
567303
668302
768302
868302
969292
1069292
1169292
1269292
1370282
1470282
1571281
1671281
1771281
1871281
1971281
2071281
2171281
2271281
2371281
2471281
2571281
2671281
2771281
2872271
2972271
3071272
3171272

Wind in July

Winds average 12 km/h in July.

Across July, daily wind ranges from about 11 km/h on the calmest days to 12 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
112calm
212calm
312calm
412calm
512calm
612calm
712calm
812calm
912calm
1012calm
1112calm
1212calm
1312calm
1412calm
1512calm
1612calm
1712calm
1812calm
1912calm
2011calm
2111calm
2211calm
2311calm
2411calm
2511calm
2611calm
2711calm
2811calm
2911calm
3011calm
3111calm

Sunrise & sunset in July

DaylightNight

Daylight runs from about 13 h 30 min at the start of July to 13 h 06 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 6:12 AM to 6:24 AM, and sunset from 7:39 PM to 7:32 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.56:127:39
213.46:127:39
313.46:137:39
413.46:137:39
513.46:137:39
613.46:147:39
713.46:147:39
813.46:147:39
913.46:157:39
1013.46:157:39
1113.46:157:39
1213.46:167:39
1313.46:167:39
1413.46:177:38
1513.36:177:38
1613.36:187:38
1713.36:187:38
1813.36:187:37
1913.36:197:37
2013.36:197:37
2113.36:207:37
2213.36:207:36
2313.36:217:36
2413.26:217:35
2513.26:227:35
2613.26:227:35
2713.26:227:34
2813.26:237:34
2913.26:237:33
3013.16:247:33
3113.16:247:32

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 7 kWh/m².

For context, solar energy here swings from a low near 4.54 kWh/m² to a high of 7.81 kWh/m² in May across the year — July's 7 kWh/m² falls in the middle.

02468151015202531
Solar energy (kWh/m²)Level
17.0Intense
27.0Intense
37.0Intense
46.9Intense
56.9Intense
66.9Intense
77.0Intense
87.0Intense
97.0Intense
107.0Intense
117.0Intense
127.0Intense
137.0Intense
147.0Intense
157.0Intense
167.1Intense
177.1Intense
187.1Intense
197.1Intense
207.1Intense
217.1Intense
227.1Intense
237.1Intense
247.1Intense
257.1Intense
267.1Intense
277.1Intense
287.1Intense
297.1Intense
307.1Intense
317.1Intense
Planning a trip in July

Is July a good time to visit Río Grande?

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

6.4
Sightseeing
10th-best month of the year
6.7
Beach & pool
6th-best month of the year

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

What to pack for Río Grande in July

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

In July, Río Grande sees daytime highs around 27°C and nights near 16°C. Pack light clothes and sun protection. Worth having: rain gear. About 11 days see rain.

light clothessun protectionrain gear

UV index in Río Grande in July

LowModerateHighVery highExtreme

Clear-sky midday UV in July 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 Río Grande peaks around May 21 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 19 at about 6 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeVery highHighMay 21UV 14Dec 19UV 6
UV index (midday)Level
Jan7High
Feb10Very high
Mar11Extreme
Apr13Extreme
May14Extreme
Jun14Extreme
Jul13Extreme
Aug13Extreme
Sep12Extreme
Oct10Very high
Nov7Very high
Dec6High
Location & terrain

Where is Río Grande?

Río Grande sits at 23.8°N, 103.0°W, 1,859 m above sea level, in Mexico. The nearest listed city is Juan Aldama, 63 km away.

Topography around Río Grande

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

Within 3 km, the terrain around Río Grande has only modest variations in elevation — a maximum elevation change of 96 m around an average of 1,878 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 396 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,533 m.

The land around Río Grande is covered by shrubs (40%), artificial surfaces (30%) and cropland (20%) within 3 km, shrubs (77%) within 16 km, and shrubs (64%) and cropland (30%) within 80 km.

3 km
96 m
16 km
396 m
80 km
1,533 m
treesshrubsgrasslandcroplandartificial surfacesbare terrain
July weather nearby: Juan Aldama 63 km · Sombrerete 66 km · Fresnillo 74 km · Vicente Guerrero 97 km · Víctor Rosales 103 km · Zacatecas 126 km · Guadalupe Victoria 130 km · Jerez de García Salinas 131 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 Río Grande (23.8273°, -103.0341°, elevation 1,859 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).