Rancagua weather in March

In March, Rancagua sees average daytime highs of 24°C and overnight lows near 11°C, with 11 mm of rain across 1.8 wet days and about 12.3 hours of daylight. It is the 4th-warmest and 10th-wettest month of the year here.

Highs ease over the month, from about 25°C in the first days to 23°C by the end. The sky is clear or mostly clear about 82% of the time in March, and the air most often feels dry.

Daylight stretches from about 12 h 48 min at the start of March to 11 h 42 min by month's end. Set against the rest of the year, March is Rancagua's 3rd-clearest and 6th-windiest month. For the whole year in context, see Rancagua's year-round climate.

Daytime high
24°
4th warmest
Overnight low
11°
9th coldest
Rainfall
11 mm
1.8 wet days
Daylight
12 h 18 min
7:45 AM – 8:01 PM
Cloud cover
18%
3rd clearest
Wind
5 km/h
6th windiest
Solar energy
6.41 kWh/m²
Travel score
9.1
out of 10

Rancagua is city in O'Higgins Region, Chile.

Air quality
High
PM2.5 25.9 µg/m³ · 2019
Density
4,021/km²
people per km²
Founded
1743

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

Temperature in March

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 25°C in the first days to 23°C by the end.

A typical March day in Rancagua reaches about 24°C in the afternoon and slips back to 11°C overnight — a 13°C spread between the day's warmth and the night's chill. On most days the high lands between 21°C and 27°C. Set against its neighbours, March runs about 2°C cooler than February and about 4°C warmer than April.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12512
22512
32512
42512
52512
62512
72512
82512
92512
102512
112512
122511
132511
142411
152411
162411
172411
182411
192411
202411
212411
222410
232310
242310
252310
262310
272310
282310
292310
30239
31229

Rancagua weather by month

How March compares with the rest of the year at a glance. March is the 4th-warmest and 10th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan26° / 14°61.40148.9
Feb26° / 13°71.5013.38.9
Mar24° / 11°111.8012.39.1
Apr20° / 443.9011.27.7
May17° / 997.30.110.25.7
Jun14° / 1679.41.49.83.9
Jul13° / 1249.21.5103.9
Aug15° / 1088.61.210.74.7
Sep17° / 81100.411.85.5
Oct19° / 608.50.212.96.6
Nov22° / 264.7013.88.0
Dec25° / 12°132014.28.9

Cloud cover in March

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 82% of the time in March.

Beyond those clear spells, partly cloudy skies cover about 7% of March, with mostly cloudy or overcast conditions the remaining 11%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
1928
2928
3919
4928
5928
6928
7928
8928
9919
10919
11919
12919
139010
149010
159010
169010
179010
189010
198911
208911
218812
228713
238713
248614
258614
268416
278416
288416
298317
308317
318218

Chance of precipitation in March

Any precipitation

Rancagua gets around 11 mm of rain over 1.8 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 6% and peaks near 8% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
16
26
36
46
55
65
75
85
95
105
115
124
134
144
154
164
175
185
195
205
215
225
236
246
256
267
277
287
297
308
318

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 92% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
182171
283161
384151
485150
586140
686140
787130
887130
988120
1089110
1190100
1290100
139190
149280
159370
169460
179460
189550
199640
209640
219730
229730
239730
249820
259820
269820
279820
289820
299820
309820
319910

Wind in March

Winds average 5 km/h in March.

Across March, daily wind ranges from about 4 km/h on the calmest days to 5 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
15calm
25calm
35calm
45calm
55calm
65calm
75calm
85calm
95calm
105calm
115calm
125calm
135calm
145calm
155calm
165calm
175calm
185calm
195calm
205calm
215calm
225calm
235calm
245calm
255calm
265calm
275calm
285calm
295calm
305calm
314calm

Sunrise & sunset in March

DaylightNight

Daylight runs from about 12 h 48 min at the start of March to 11 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 66 minutes over March. Sunrise moves from 7:32 AM to 7:56 AM, and sunset from 8:20 PM to 7:39 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.87:328:20
212.87:338:19
312.77:348:18
412.77:358:16
512.77:368:15
612.67:368:14
712.67:378:13
812.67:388:11
912.57:398:10
1012.57:408:09
1112.47:418:07
1212.47:418:06
1312.47:428:05
1412.37:438:03
1512.37:448:02
1612.37:458:01
1712.27:457:59
1812.27:467:58
1912.27:477:56
2012.17:487:55
2112.17:497:54
2212.07:497:52
2312.07:507:51
2412.07:517:49
2511.97:527:48
2611.97:537:47
2711.97:537:45
2811.87:547:44
2911.87:557:42
3011.87:567:41
3111.77:567:39

Solar energy in March

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in March, about 6.41 kWh/m².

For context, solar energy here swings from a low near 2.16 kWh/m² to a high of 8.81 kWh/m² in January across the year — March's 6.41 kWh/m² falls in the middle.

02468151015202531
Solar energy (kWh/m²)Level
17.2Intense
27.2Intense
37.1Intense
47.0Intense
57.0Intense
67.0Intense
76.9Intense
86.8Intense
96.8Intense
106.8Intense
116.7Intense
126.6Intense
136.6Intense
146.5Intense
156.5Intense
166.4Intense
176.4Intense
186.3Intense
196.3Intense
206.2Intense
216.1Intense
226.1Intense
236.0Intense
246.0Bright
255.9Bright
265.8Bright
275.7Bright
285.7Bright
295.6Bright
305.5Bright
315.5Bright
Planning a trip in March

Hazard calendar for Rancagua

In seasonPeak

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

Rancagua's rainy season runs May–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 Rancagua?

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

9.1
Sightseeing
1st-best month of the year
7.5
Beach & pool
4th-best month of the year

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

What to pack for Rancagua in March

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

In March, Rancagua sees daytime highs around 24°C and nights near 11°C. Pack sun protection. Worth having: light clothes.

sun protectionlight clothes

UV index in Rancagua in March

LowModerateHighVery highExtreme

Clear-sky midday UV in March peaks around 10 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Rancagua peaks around January 16 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near May 24 at about 3 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 10 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeModerateVery highExtremeJan 16UV 13May 24UV 3
UV index (midday)Level
Jan13Extreme
Feb12Extreme
Mar10Very high
Apr5High
May3Moderate
Jun3Moderate
Jul3Moderate
Aug3Moderate
Sep6High
Oct9Very high
Nov11Extreme
Dec12Extreme

Air quality in Rancagua 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 Rancagua is worst in July — around 35 µg/m³ PM2.5 (poor), about 2.1× the cleanest month (December, 17 µg/m³).

Seasonal pattern from CAMS reanalysis, scaled to Rancagua's WHO annual average of 25.9 µg/m³.

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateModerateJul 1835 µg/m³Dec 1217 µg/m³
PM2.5 (µg/m³)Level
Jan22Moderate
Feb19Moderate
Mar18Moderate
Apr25Moderate
May34Moderate
Jun34Moderate
Jul35Poor
Aug34Moderate
Sep31Moderate
Oct24Moderate
Nov18Moderate
Dec17Moderate
Location & terrain

Where is Rancagua?

Rancagua sits at 34.2°S, 70.7°W, 520 m above sea level, in Chile. The nearest listed city is Machalí, 8.0 km away.

Topography around Rancagua

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

Within 3 km, the terrain around Rancagua has only modest variations in elevation — a maximum elevation change of 70 m around an average of 502 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,373 m; within 80 km, extreme variations in elevation — a maximum elevation change of 5,124 m.

The land around Rancagua is covered by artificial surfaces (74%) within 3 km, shrubs (28%), cropland (25%) and trees (22%) within 16 km, and bare terrain (24%) and trees (20%) within 80 km.

3 km
70 m
16 km
1,373 m
80 km
5,124 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainsnow and icewater
March weather nearby: Machalí 8.0 km · Graneros 11 km · Rengo 29 km · Paine 40 km · San Vicente 43 km · San Vicente de Tagua Tagua 43 km · Buin 49 km · Talagante 59 km

Chile travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / F / L
220 V · 50 Hz
Prices
≈ 48% of US
price level, 2025
GDP per capita
$17,995
2025
Happiness
6.3 / 10
World Happiness, 2025
Safe drinking water
98%
of population, 2024
Homicide rate
6.3
per 100k, 2023
Road deaths
14.9
per 100k/yr, 2019
Income group
High
World Bank
English
Moderate
EF EPI 517
Religion
Catholic 57%none 26%Evangelical or Protestant 16%other Christians and traditions related to Christ 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 Rancagua (-34.1691°, -70.7405°, elevation 520 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).