Arauco weather in March

In March, Arauco sees average daytime highs of 21°C and overnight lows near 10°C, with 25 mm of rain across 3.5 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 22°C in the first days to 20°C by the end. The sky is clear or mostly clear about 68% of the time in March, and the air most often feels dry.

Daylight stretches from about 12 h 54 min at the start of March to 11 h 42 min by month's end. Set against the rest of the year, March is Arauco's 3rd-clearest and 5th-windiest month. For the whole year in context, see Arauco's year-round climate.

Daytime high
21°
4th warmest
Overnight low
10°
9th coldest
Rainfall
25 mm
3.5 wet days
Daylight
12 h 18 min
7:54 AM – 8:12 PM
Cloud cover
29%
3rd clearest
Wind
11 km/h
5th windiest
Solar energy
5.71 kWh/m²
Travel score
8.1
out of 10

Arauco is city in Chile.

Density
3,997/km²
people per km²
Founded
1552

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 22°C in the first days to 20°C by the end.

A typical March day in Arauco reaches about 21°C in the afternoon and slips back to 10°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 18°C and 25°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)
12311
22311
32211
42211
52211
62211
72211
82211
92211
102211
112211
122211
132211
142211
152211
162110
172110
182110
192110
202110
212110
222110
232110
242110
252110
262110
272010
282010
29209
30209
31209

Arauco 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 daysDaylight (hours)Travel score
Jan23° / 12°101.714.39.0
Feb23° / 12°152.213.48.9
Mar21° / 10°253.512.38.1
Apr18° / 726.211.16.4
May15° / 17810.9104.2
Jun12° / 25014.89.52.9
Jul12° / 19613.69.72.9
Aug13° / 16712.410.63.4
Sep15° / 888.111.74.7
Oct17° / 617.4135.8
Nov19° / 324.3147.3
Dec22° / 11°253.514.58.2

Cloud cover in March

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 68% of the time in March.

Beyond those clear spells, partly cloudy skies cover about 10% of March, with mostly cloudy or overcast conditions the remaining 22%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
18614
28614
38416
48416
58317
68317
78218
88119
98119
108020
117921
127822
137822
147822
157822
167723
177624
187624
197624
207624
217624
227624
237624
247525
257624
267525
277525
287426
297327
307228
317129

Chance of precipitation in March

Any precipitation

Arauco gets around 25 mm of rain over 3.5 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 12% and peaks near 17% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%151015202531
Rain chance (%)
19
29
39
49
59
610
710
810
910
1010
1110
1211
1311
1411
1511
1611
1711
1812
1912
2012
2112
2212
2313
2413
2514
2614
2714
2815
2915
3016
3117

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 85% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
181181
281181
381181
482171
582171
682171
782171
882171
982171
1082171
1183161
1283161
1383161
1483161
1583161
1684151
1784151
1884151
1985141
2086140
2187130
2287130
2388120
2488120
2588120
2689110
2789110
2889110
2989110
3090100
3190100

Wind in March

Winds average 11 km/h in March.

Across March, 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
1611calm
1711calm
1811calm
1911calm
2011calm
2111calm
2211calm
2311calm
2411calm
2511calm
2611calm
2711calm
2811calm
2911calm
3011calm
3111calm

Sunrise & sunset in March

DaylightNight

Daylight runs from about 12 h 54 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 72 minutes over March. Sunrise moves from 7:40 AM to 8:08 AM, and sunset from 8:33 PM to 7:49 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.97:408:33
212.97:418:32
312.87:428:31
412.87:438:29
512.77:448:28
612.77:458:26
712.77:458:25
812.67:468:24
912.67:478:22
1012.57:488:21
1112.57:498:19
1212.57:508:18
1312.47:518:16
1412.47:528:15
1512.37:538:13
1612.37:548:12
1712.37:558:10
1812.27:568:09
1912.27:578:07
2012.17:588:06
2112.17:598:04
2212.18:008:03
2312.08:008:01
2412.08:018:00
2511.98:027:58
2611.98:037:56
2711.88:047:55
2811.88:057:53
2911.88:067:52
3011.78:077:50
3111.78:087:49

Solar energy in March

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in March, about 5.71 kWh/m².

For context, solar energy here swings from a low near 1.78 kWh/m² to a high of 8.52 kWh/m² in January across the year — March's 5.71 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
16.6Intense
26.6Intense
36.5Intense
46.5Intense
56.4Intense
66.3Intense
76.3Intense
86.2Intense
96.1Intense
106.0Intense
116.0Bright
125.9Bright
135.8Bright
145.8Bright
155.7Bright
165.7Bright
175.6Bright
185.5Bright
195.5Bright
205.4Bright
215.4Bright
225.3Bright
235.3Bright
245.2Bright
255.1Bright
265.1Bright
275.0Bright
285.0Bright
294.9Bright
304.8Bright
314.7Bright
Planning a trip in March

Hazard calendar for Arauco

In seasonPeak

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

Arauco's rainy season runs May–August, 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 Arauco?

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

8.1
Sightseeing
4th-best month of the year
5.1
Beach & pool
4th-best month of the year

March is one of the better times to visit Arauco for general sightseeing.

What to pack for Arauco in March

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

In March, Arauco sees daytime highs around 21°C and nights near 10°C. Worth packing: sun protection. About 4 days see rain.

sun protection

Sea temperature near Arauco in March

The nearest coast averages about 14°C in March — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 14 km away) is warmest in January at about 15°C and coldest in August near 12°C.

The water stays below 20°C all year — cool enough that most swimmers want a wetsuit.

10°12°14°16°JanFebMarAprMayJunJulAugSepOctNovDecbracingcool
Sea temperature (°C)Comfort
Jan15Bracing
Feb15Bracing
Mar14Bracing
Apr14Bracing
May13Bracing
Jun12Bracing
Jul12Bracing
Aug12Bracing
Sep12Bracing
Oct12Bracing
Nov13Bracing
Dec14Bracing

UV index in Arauco 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 Arauco peaks around January 12 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 16 at about 2 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 9 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highModerateVery highExtremeJan 12UV 12Jun 16UV 2
UV index (midday)Level
Jan12Extreme
Feb11Extreme
Mar9Very high
Apr5Moderate
May3Moderate
Jun2Low
Jul3Moderate
Aug3Moderate
Sep5Moderate
Oct8Very high
Nov10Very high
Dec12Extreme
Location & terrain

Where is Arauco?

Arauco sits at 37.2°S, 73.3°W, 13 m above sea level, in Chile. The nearest listed city is Lota, 22 km away.

Topography around Arauco

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

Within 3 km, the terrain around Arauco has only modest variations in elevation — a maximum elevation change of 107 m around an average of 20 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 656 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,511 m.

The land around Arauco is covered by trees (35%), water (31%) and grassland (20%) within 3 km, trees (45%) and water (37%) within 16 km, and trees (49%) and water (38%) within 80 km.

3 km
107 m
16 km
656 m
80 km
1,511 m
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
March weather nearby: Lota 22 km · Curanilahue 26 km · Coronel 28 km · Chiguayante 44 km · Los Álamos 44 km · Hualqui 46 km · San Pedro de la Paz 49 km · Lebu 50 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 Arauco (-37.2463°, -73.3175°, elevation 13 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. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. 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).