Castaños weather in July

In July, Castaños sees average daytime highs of 32°C and overnight lows near 22°C, with 81 mm of rain across 10.2 wet days and about 13.5 hours of daylight. It is the 2nd-warmest and 2nd-wettest month of the year here.

Day-to-day highs hold fairly steady near 32°C through the month. The sky is clear or mostly clear about 51% of the time in July, and the air most often feels humid.

Daylight stretches from about 13 h 42 min at the start of July to 13 h 18 min by month's end. Set against the rest of the year, July is Castaños's 11th-clearest and 2nd-windiest month. For the whole year in context, see Castaños's year-round climate.

Daytime high
32°
2nd warmest
Overnight low
22°
12th coldest
Rainfall
81 mm
10.2 wet days
Daylight
13 h 30 min
6:05 AM – 7:37 PM
Cloud cover
47%
11th clearest
Wind
8 km/h
2nd windiest
Solar energy
6.89 kWh/m²
Travel score
4.0
out of 10

Castaños is municipal seat of Castaños, State of Coahuila, Mexico.

Founded
1674

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 32°C through the month.

A typical July day in Castaños reaches about 32°C in the afternoon and slips back to 22°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 28°C and 36°C. Set against its neighbours, July runs on par with June and on par with August.

15°20°25°30°35°40°151015202531
Avg high (°C)Avg low (°C)
13222
23222
33222
43222
53222
63222
73222
83222
93222
103222
113222
123222
133222
143222
153222
163222
173222
183222
193222
203222
213222
223222
233222
243222
253222
263222
273222
283222
293222
303222
313222

How July really feels in Castaños

Once humidity and wind are folded in, July averages 31 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
31
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

The story in July is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Castaños weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan19° / 173.610.57.2
Feb22° / 123.111.18.0
Mar25° / 13°244.311.88.0
Apr29° / 16°275.812.66.2
May32° / 20°4911.613.34.3
Jun33° / 22°5610.213.73.8
Jul32° / 22°8110.213.54.0
Aug32° / 22°649.212.94.3
Sep28° / 19°1211312.25.6
Oct26° / 15°396.711.47.6
Nov22° / 11°213.910.78.0
Dec19° / 193.410.37.4

Cloud cover in July

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 51% of the time in July.

Beyond those clear spells, partly cloudy skies cover about 18% of July, with mostly cloudy or overcast conditions the remaining 32%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16832
26832
36733
46832
56832
66832
76832
86931
96931
106931
117030
127030
136931
146931
156931
166931
176931
186931
196931
206931
216733
226733
236733
246733
256733
266832
276832
286832
296832
306931
316931

Chance of precipitation in July

Any precipitation

Castaños gets around 81 mm of rain over 10.2 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 33% and peaks near 36% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
136
236
336
436
535
635
734
834
933
1033
1133
1232
1332
1432
1532
1632
1732
1832
1932
2032
2132
2232
2332
2432
2532
2631
2731
2830
2930
3030
3130

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 37% of days. Sticky, muggy-or-worse air turns up on roughly 37% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
162033384
262033374
362033374
462034364
562034364
662035354
752136344
852137334
952137324
1052138324
1152238314
1252239314
1352239314
1442239314
1542239313
1642238323
1742338323
1842338323
1942337323
2042337323
2142336333
2242336333
2342336334
2442336334
2542336334
2642336334
2742336334
2842337334
2942238334
3042238324
3132239324

Wind in July

Winds average 8 km/h in July.

Across July, daily wind ranges from about 8 km/h on the calmest days to 8 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
58calm
68calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
158calm
168calm
178calm
188calm
198calm
208calm
218calm
228calm
238calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm
318calm

Sunrise & sunset in July

DaylightNight

Daylight runs from about 13 h 42 min at the start of July to 13 h 18 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 5:59 AM to 6:13 AM, and sunset from 7:39 PM to 7:31 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.75:597:39
213.75:597:39
313.76:007:39
413.66:007:39
513.66:017:39
613.66:017:39
713.66:017:39
813.66:027:39
913.66:027:39
1013.66:037:39
1113.66:037:38
1213.66:037:38
1313.66:047:38
1413.66:047:38
1513.56:057:38
1613.56:057:37
1713.56:067:37
1813.56:067:37
1913.56:077:36
2013.56:077:36
2113.56:087:36
2213.46:087:35
2313.46:097:35
2413.46:097:34
2513.46:107:34
2613.46:107:33
2713.46:117:33
2813.46:117:32
2913.36:127:32
3013.36:127:31
3113.36:137:31

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 6.89 kWh/m².

For context, solar energy here swings from a low near 3.69 kWh/m² to a high of 7.06 kWh/m² in June across the year — July's 6.89 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.8Intense
26.8Intense
36.8Intense
46.8Intense
56.8Intense
66.9Intense
76.9Intense
86.9Intense
96.9Intense
106.9Intense
116.9Intense
126.9Intense
136.9Intense
146.9Intense
156.9Intense
167.0Intense
177.0Intense
187.0Intense
197.0Intense
207.0Intense
216.9Intense
226.9Intense
236.9Intense
246.9Intense
256.9Intense
266.9Intense
276.9Intense
286.9Intense
296.9Intense
306.9Intense
316.9Intense
Planning a trip in July

Hazard calendar for Castaños

In seasonPeak

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

Castaños'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 July a good time to visit Castaños?

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

4.0
Sightseeing
11th-best month of the year
6.6
Beach & pool
7th-best month of the year

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

What to pack for Castaños in July

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

In July, Castaños sees daytime highs around 32°C and nights near 22°C. Pack light clothes and sun protection. Worth having: rain gear. About 10 days see rain.

light clothessun protectionrain gear

UV index in Castaños in July

LowModerateHighVery highExtreme

Clear-sky midday UV in July peaks around 12 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Castaños peaks around July 15 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 17 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 highHighJul 15UV 12Dec 17UV 5
UV index (midday)Level
Jan6High
Feb7Very high
Mar9Very high
Apr11Extreme
May12Extreme
Jun12Extreme
Jul12Extreme
Aug11Extreme
Sep11Extreme
Oct8Very high
Nov6High
Dec5Moderate

Air quality in Castaños 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 Castaños is worst in July — around 18 µg/m³ PM2.5 (moderate), about 2.1× the cleanest month (January, 9 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1617 µg/m³Jan 219 µg/m³
PM2.5 (µg/m³)Level
Jan9Good
Feb9Good
Mar9Good
Apr11Good
May15Moderate
Jun15Moderate
Jul18Moderate
Aug15Moderate
Sep14Moderate
Oct11Good
Nov10Good
Dec9Good
Location & terrain

Where is Castaños?

Castaños sits at 26.8°N, 101.4°W, 756 m above sea level, in Mexico. The nearest listed city is Monclova, 13 km away.

Topography around Castaños

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

Within 3 km, the terrain around Castaños has only modest variations in elevation — a maximum elevation change of 240 m around an average of 777 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,344 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,316 m.

The land around Castaños is covered by shrubs (58%) and artificial surfaces (26%) within 3 km, shrubs (81%) within 16 km, and shrubs (88%) within 80 km.

3 km
240 m
16 km
1,344 m
80 km
2,316 m
treesshrubsgrasslandcroplandartificial surfacesbare terrain
July weather nearby: Monclova 13 km · Frontera 16 km · San Buenaventura 32 km · Ciudad Melchor Múzquiz 121 km · Sabinas 123 km · Palaú 123 km · Ciudad Sabinas Hidalgo 128 km · Nueva Rosita 129 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 Castaños (26.7893°, -101.4321°, elevation 756 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).