Antofagasta weather in March

In March, Antofagasta sees average daytime highs of 19°C and overnight lows near 17°C, with 4 mm of rain across 0.6 wet days and about 12.2 hours of daylight. It is the 3rd-warmest and 8th-wettest month of the year here.

Day-to-day highs hold fairly steady near 19°C through the month. The sky is clear or mostly clear about 69% of the time in March, and the air most often feels humid.

Daylight stretches from about 12 h 30 min at the start of March to 11 h 48 min by month's end. Set against the rest of the year, March is Antofagasta's 2nd-clearest and 6th-windiest month. For the whole year in context, see Antofagasta's year-round climate.

Daytime high
19°
3rd warmest
Overnight low
17°
10th coldest
Rainfall
4 mm
0.6 wet days
Daylight
12 h 12 min
7:46 AM – 7:56 PM
Cloud cover
33%
2nd clearest
Wind
12 km/h
6th windiest
Solar energy
6.64 kWh/m²
Travel score
8.0
out of 10

Antofagasta is city in Antofagasta Region, Chile.

Air quality
Moderate
PM2.5 12 µg/m³ · 2019
Density
7,147/km²
people per km²
Founded
1868

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

Temperature in March

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 19°C through the month.

A typical March day in Antofagasta reaches about 19°C in the afternoon and slips back to 17°C overnight — a 2°C spread between the day's warmth and the night's chill. On most days the high lands between 18°C and 20°C. Set against its neighbours, March runs about 1°C cooler than February and about 1°C warmer than April.

15°18°20°23°25°151015202531
Avg high (°C)Avg low (°C)
12018
22018
32018
42018
52018
62018
72018
82018
91918
101918
111918
121918
131918
141918
151918
161918
171917
181917
191917
201917
211917
221917
231917
241917
251917
261917
271917
281917
291917
301917
311817

Antofagasta weather by month

How March compares with the rest of the year at a glance. March is the 3rd-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan20° / 18°20.113.38.1
Feb20° / 18°20.512.88.2
Mar19° / 17°40.612.28.0
Apr18° / 16°92.811.57.1
May17° / 15°103.910.96.3
Jun16° / 14°13410.65.9
Jul15° / 13°103.810.75.6
Aug15° / 13°82.611.25.6
Sep15° / 13°51.811.95.8
Oct16° / 13°50.912.66.1
Nov17° / 15°40.713.16.8
Dec18° / 16°20.113.47.6

Cloud cover in March

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 69% of the time in March.

Beyond those clear spells, partly cloudy skies cover about 20% 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 (%)
19010
29010
38911
48911
58911
68911
78812
88812
98812
108812
118812
128812
138812
148812
158812
168812
178812
189010
199010
209010
218911
229010
239010
249010
258911
268911
278812
288812
298812
308713
318713

Chance of precipitation in March

Any precipitation

Antofagasta gets around 4 mm of rain over 0.6 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 2% and peaks near 5% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
11
21
31
41
51
60
70
80
90
100
110
120
131
141
151
161
171
182
192
202
213
223
233
244
254
264
274
285
295
305
315

Humidity in March

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, March lands in the humid band about 91% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Comfortable (%)Humid (%)Muggy (%)
118910
21909
31909
41918
51918
61927
71927
81936
91936
101936
111945
121945
131945
141954
151954
162944
172944
183934
193934
204924
215923
226913
237903
248893
259883
2610873
2711872
2812862
2914842
3015832
3117821

Wind in March

Winds average 12 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
112light breeze
212light breeze
312light breeze
412light breeze
512light breeze
612calm
712calm
812calm
912calm
1012calm
1112calm
1212calm
1312calm
1412calm
1512calm
1612calm
1712calm
1812calm
1912calm
2012calm
2112calm
2212calm
2312calm
2411calm
2511calm
2611calm
2711calm
2811calm
2911calm
3011calm
3111calm

Sunrise & sunset in March

DaylightNight

Daylight runs from about 12 h 30 min at the start of March to 11 h 48 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 42 minutes over March. Sunrise moves from 7:39 AM to 7:52 AM, and sunset from 8:10 PM to 7:41 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.57:398:10
212.57:408:09
312.57:408:09
412.47:418:08
512.47:418:07
612.47:428:06
712.47:428:05
812.47:438:04
912.37:438:03
1012.37:448:02
1112.37:448:01
1212.37:448:00
1312.27:457:59
1412.27:457:58
1512.27:467:57
1612.27:467:56
1712.17:477:55
1812.17:477:54
1912.17:477:53
2012.17:487:52
2112.17:487:51
2212.07:497:50
2312.07:497:49
2412.07:497:48
2512.07:507:47
2611.97:507:46
2711.97:507:45
2811.97:517:44
2911.97:517:43
3011.87:527:42
3111.87:527:41

Solar energy in March

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in March, about 6.64 kWh/m².

For context, solar energy here swings from a low near 3.95 kWh/m² to a high of 8.34 kWh/m² in December across the year — March's 6.64 kWh/m² falls in the middle.

02468151015202531
Solar energy (kWh/m²)Level
17.2Intense
27.2Intense
37.2Intense
47.1Intense
57.1Intense
67.0Intense
77.0Intense
87.0Intense
96.9Intense
106.9Intense
116.8Intense
126.8Intense
136.8Intense
146.7Intense
156.7Intense
166.6Intense
176.6Intense
186.5Intense
196.5Intense
206.5Intense
216.4Intense
226.4Intense
236.3Intense
246.3Intense
256.3Intense
266.2Intense
276.2Intense
286.1Intense
296.1Intense
306.0Intense
316.0Intense
Planning a trip in March

Is March a good time to visit Antofagasta?

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

8.0
Sightseeing
3rd-best month of the year
3.5
Beach & pool
3rd-best month of the year

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

What to pack for Antofagasta in March

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

In March, Antofagasta sees daytime highs around 19°C and nights near 17°C. Pack sun protection.

sun protection

Sea temperature near Antofagasta in March

The nearest coast averages about 19°C in March — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea offshore is warmest in January at about 20°C and coldest in August near 15°C.

It's comfortable for a long swim from Jan 16 to Feb 17 — about 1.1 months when the water holds above 20°C.

14°16°18°20°22°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshing
Sea temperature (°C)Comfort
Jan20Refreshing
Feb20Refreshing
Mar19Cool
Apr18Cool
May17Cool
Jun16Cool
Jul15Cool
Aug15Cool
Sep15Cool
Oct16Cool
Nov18Cool
Dec19Cool

UV index in Antofagasta in March

LowModerateHighVery highExtreme

Clear-sky midday UV in March 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 Antofagasta peaks around February 10 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 10 at about 5 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighVery highExtremeFeb 10UV 15Jul 10UV 5
UV index (midday)Level
Jan14Extreme
Feb15Extreme
Mar12Extreme
Apr9Very high
May7High
Jun6High
Jul5High
Aug8Very high
Sep10Very high
Oct12Extreme
Nov13Extreme
Dec14Extreme

Air quality in Antofagasta 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 Antofagasta is worst in July — around 19 µg/m³ PM2.5 (moderate), about 2.5× the cleanest month (March, 7 µg/m³).

Seasonal pattern from CAMS reanalysis, scaled to Antofagasta's WHO annual average of 12 µg/m³.

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1719 µg/m³Mar 127 µg/m³
PM2.5 (µg/m³)Level
Jan8Good
Feb8Good
Mar7Good
Apr10Good
May16Moderate
Jun17Moderate
Jul19Moderate
Aug17Moderate
Sep14Moderate
Oct11Good
Nov10Good
Dec8Good
Location & terrain

Where is Antofagasta?

Antofagasta sits at 23.7°S, 70.4°W, 276 m above sea level, in Chile. The nearest listed city is Tocopilla, 175 km away.

Alto HospicioCalderaPozo AlmonteIquiqueCopiapó

Topography around Antofagasta

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

Within 3 km, the terrain around Antofagasta has significant variations in elevation — a maximum elevation change of 487 m around an average of 103 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,138 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,608 m.

The land around Antofagasta is covered by water (40%), artificial surfaces (30%) and bare terrain (30%) within 3 km, bare terrain (54%) and water (42%) within 16 km, and bare terrain (68%) and water (32%) within 80 km.

3 km
487 m
16 km
1,138 m
80 km
2,608 m
artificial surfacesbare terrainwater
March weather nearby: Tocopilla 175 km · Calama 201 km · San Pedro de Atacama 239 km · Alto Hospicio 377 km · Caldera 382 km · Pozo Almonte 383 km · Iquique 383 km · Copiapó 413 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 Antofagasta (-23.6509°, -70.3975°, elevation 276 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. 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).