Antofagasta weather in April

In April, Antofagasta sees average daytime highs of 18°C and overnight lows near 16°C, with 9 mm of rain across 2.8 wet days and about 11.5 hours of daylight. It is the 5th-warmest and 4th-wettest month of the year here.

Day-to-day highs hold fairly steady near 18°C through the month. The sky is clear or mostly clear about 52% of the time in April, and the air most often feels humid.

Daylight stretches from about 11 h 48 min at the start of April to 11 h 12 min by month's end. Set against the rest of the year, April is Antofagasta's 10th-clearest and 8th-windiest month. For the whole year in context, see Antofagasta's year-round climate.

Daytime high
18°
5th warmest
Overnight low
16°
8th coldest
Rainfall
9 mm
2.8 wet days
Daylight
11 h 30 min
7:58 AM – 7:25 PM
Cloud cover
41%
10th clearest
Wind
11 km/h
8th windiest
Solar energy
5.32 kWh/m²
Travel score
7.1
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 April

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 18°C through the month.

A typical April day in Antofagasta reaches about 18°C in the afternoon and slips back to 16°C overnight — a 2°C spread between the day's warmth and the night's chill. On most days the high lands between 17°C and 19°C. Set against its neighbours, April runs about 1°C cooler than March and about 1°C warmer than May.

10°13°15°18°20°151015202530
Avg high (°C)Avg low (°C)
11817
21817
31817
41817
51817
61817
71816
81816
91816
101816
111816
121816
131816
141816
151816
161816
171816
181816
191816
201816
211716
221716
231716
241716
251716
261716
271716
281716
291716
301716

Antofagasta weather by month

How April compares with the rest of the year at a glance. April is the 5th-warmest and 4th-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 April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 52% of the time in April.

Beyond those clear spells, partly cloudy skies cover about 28% of April, with mostly cloudy or overcast conditions the remaining 21%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
18713
28614
38614
48515
58416
68416
78317
88317
98218
108119
118119
128119
138119
148020
158020
168020
177921
187822
197822
207822
217723
227624
237525
247525
257525
267426
277426
287426
297327
307327

Chance of precipitation in April

Any precipitation

Antofagasta gets around 9 mm of rain over 2.8 wet days in April. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 9% and peaks near 15% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%151015202530
Rain chance (%)
15
25
35
45
55
65
75
85
95
105
115
126
136
146
157
168
178
189
1910
2011
2111
2212
2313
2414
2514
2614
2715
2815
2915
3015

Humidity in April

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, April lands in the humid band about 53% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Comfortable (%)Humid (%)Muggy (%)
119801
220791
322771
423761
525741
627721
728720
830700
932680
1034660
1135650
1237630
1339610
1442580
1544560
1646540
1749510
1852480
1954460
2057430
2159410
2262380
2364360
2466340
2568320
2670300
2772280
2874260
2975250
3076240

Wind in April

Winds average 11 km/h in April.

Across April, daily wind ranges from about 10 km/h on the calmest days to 11 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
111calm
211calm
311calm
411calm
511calm
611calm
711calm
811calm
911calm
1011calm
1111calm
1211calm
1311calm
1411calm
1511calm
1611calm
1711calm
1811calm
1911calm
2011calm
2111calm
2210calm
2310calm
2410calm
2510calm
2610calm
2710calm
2810calm
2910calm
3010calm

Sunrise & sunset in April

DaylightNight

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

Days shrink by about 36 minutes over April. Sunrise moves from 7:52 AM to 8:04 AM, and sunset from 7:40 PM to 7:14 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.87:527:40
211.87:537:39
311.77:537:38
411.77:547:37
511.77:547:36
611.77:547:35
711.77:557:34
811.67:557:33
911.67:567:32
1011.67:567:31
1111.67:567:30
1211.57:577:29
1311.57:577:28
1411.57:577:27
1511.57:587:26
1611.57:587:25
1711.47:597:24
1811.47:597:23
1911.48:007:23
2011.48:007:22
2111.38:007:21
2211.38:017:20
2311.38:017:19
2411.38:027:18
2511.38:027:17
2611.28:037:17
2711.28:037:16
2811.28:037:15
2911.28:047:14
3011.28:047:14

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 5.32 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 — April's 5.32 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
16.0Bright
25.9Bright
35.9Bright
45.8Bright
55.8Bright
65.7Bright
75.7Bright
85.7Bright
95.6Bright
105.6Bright
115.5Bright
125.5Bright
135.5Bright
145.4Bright
155.4Bright
165.3Bright
175.3Bright
185.2Bright
195.2Bright
205.2Bright
215.1Bright
225.1Bright
235.0Bright
245.0Bright
254.9Bright
264.9Bright
274.9Bright
284.8Bright
294.8Bright
304.8Bright
Planning a trip in April

Is April a good time to visit Antofagasta?

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

7.1
Sightseeing
5th-best month of the year
2.2
Beach & pool
5th-best month of the year

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

What to pack for Antofagasta in April

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

In April, Antofagasta sees daytime highs around 18°C and nights near 16°C. Worth packing: sun protection.

sun protection

Sea temperature near Antofagasta in April

The nearest coast averages about 18°C in April — 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 April

LowModerateHighVery highExtreme

Clear-sky midday UV in April 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 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 April

GoodModeratePoorUnhealthyVery unhealthy

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