Castaños weather in March

In March, Castaños sees average daytime highs of 25°C and overnight lows near 13°C, with 24 mm of rain across 4.3 wet days and about 11.8 hours of daylight. It is the 8th-warmest and 8th-wettest month of the year here.

Highs climb over the month, from about 24°C in the first days to 27°C by the end. The sky is clear or mostly clear about 54% of the time in March, and the air most often feels dry.

Daylight stretches from about 11 h 24 min at the start of March to 12 h 12 min by month's end. Set against the rest of the year, March is Castaños's 5th-clearest and 6th-windiest month. For the whole year in context, see Castaños's year-round climate.

Daytime high
25°
8th warmest
Overnight low
13°
5th coldest
Rainfall
24 mm
4.3 wet days
Daylight
11 h 48 min
7:01 AM – 6:49 PM
Cloud cover
41%
5th clearest
Wind
8 km/h
6th windiest
Solar energy
5.93 kWh/m²
Travel score
8.0
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 March

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 24°C in the first days to 27°C by the end.

A typical March day in Castaños reaches about 25°C in the afternoon and slips back to 13°C overnight — a 13°C spread between the day's warmth and the night's chill. On most days the high lands between 17°C and 32°C. Set against its neighbours, March runs about 3°C warmer than February and about 4°C cooler than April.

10°20°30°151015202531
Avg high (°C)Avg low (°C)
12411
22411
32411
42411
52411
62411
72411
82411
92412
102412
112412
122512
132512
142512
152512
162513
172513
182613
192613
202613
212613
222613
232614
242714
252714
262714
272714
282714
292714
302714
312814

How March really feels in Castaños

Once humidity and wind are folded in, March 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

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

Castaños weather by month

How March compares with the rest of the year at a glance. March is the 8th-warmest and 8th-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 March

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 54% of the time in March.

Beyond those clear spells, partly cloudy skies cover about 13% of March, with mostly cloudy or overcast conditions the remaining 33%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16832
26733
36733
46733
56634
66634
76634
86634
96535
106535
116634
126634
136535
146634
156634
166733
176733
186733
196733
206733
216832
226832
236832
246931
256931
266832
276832
286733
296832
306832
316832

Chance of precipitation in March

Any precipitation

Castaños gets around 24 mm of rain over 4.3 wet days in March. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 14% and peaks near 16% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
111
211
312
412
513
614
714
815
915
1015
1116
1216
1316
1416
1516
1616
1715
1815
1915
2014
2114
2214
2314
2414
2514
2614
2714
2814
2915
3015
3115

Humidity in March

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, March lands in the dry band about 83% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
19451
29361
39361
49271
59181
69082
78992
888102
987112
1087112
1185123
1284133
1384133
1483143
1582153
1682153
1780164
1880164
1979174
2079174
2179174
2279174
2379174
2478184
2578184
2679183
2779183
2878193
2978193
3078193
3177194

Wind in March

Winds average 8 km/h in March.

Across March, daily wind ranges from about 7 km/h on the calmest days to 8 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
17calm
27calm
37calm
47calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
188calm
198calm
208calm
218calm
228calm
238calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm
318calm

Sunrise & sunset in March

DaylightNight

Daylight runs from about 11 h 24 min at the start of March to 12 h 12 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 48 minutes over March. Sunrise moves from 7:17 AM to 6:44 AM, and sunset from 6:41 PM to 6:57 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.47:176:41
211.47:166:42
311.57:156:42
411.57:146:43
511.57:136:43
611.57:126:44
711.67:116:45
811.67:106:45
911.67:096:46
1011.67:086:46
1111.77:076:47
1211.77:066:47
1311.77:056:48
1411.77:036:48
1511.87:026:49
1611.87:016:49
1711.87:006:50
1811.96:596:51
1911.96:586:51
2011.96:576:52
2111.96:566:52
2212.06:556:53
2312.06:536:53
2412.06:526:54
2512.06:516:54
2612.16:506:55
2712.16:496:55
2812.16:486:56
2912.26:476:56
3012.26:466:57
3112.26:446:57

Solar energy in March

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in March, about 5.93 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 — March's 5.93 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.5Bright
25.5Bright
35.5Bright
45.5Bright
55.6Bright
65.6Bright
75.6Bright
85.7Bright
95.7Bright
105.7Bright
115.7Bright
125.8Bright
135.8Bright
145.8Bright
155.9Bright
165.9Bright
175.9Bright
186.0Bright
196.0Intense
206.0Intense
216.1Intense
226.1Intense
236.2Intense
246.2Intense
256.2Intense
266.3Intense
276.3Intense
286.3Intense
296.4Intense
306.4Intense
316.4Intense
Planning a trip in March

Hazard calendar for Castaños

In seasonPeak

None of Castaños's seasonal hazards are active in March. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

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 March a good time to visit Castaños?

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

8.0
Sightseeing
1st-best month of the year
7.3
Beach & pool
2nd-best month of the year

March is one of the better times to visit Castaños for general sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Castaños in March

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

In March, Castaños sees daytime highs around 25°C and nights near 13°C. Worth packing: light clothes and sun protection. About 4 days see rain.

light clothessun protection

UV index in Castaños in March

LowModerateHighVery highExtreme

Clear-sky midday UV in March peaks around 9 (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 March

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where March 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
March 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).