Arica weather in December

In December, Arica sees average daytime highs of 25°C and overnight lows near 18°C, with 5 mm of rain across 0.8 wet days and about 13.1 hours of daylight. It is the 4th-warmest and 10th-wettest month of the year here.

Day-to-day highs hold fairly steady near 25°C through the month. The sky is clear or mostly clear about 11% of the time in December, and the air most often feels comfortable.

Daylight stretches from about 13 hours at the start of December to 13 h 06 min by month's end. Set against the rest of the year, December is Arica's 4th-clearest and 2nd-windiest month. For the whole year in context, see Arica's year-round climate.

Daytime high
25°
4th warmest
Overnight low
18°
9th coldest
Rainfall
5 mm
0.8 wet days
Daylight
13 h 06 min
7:04 AM – 8:10 PM
Cloud cover
69%
4th clearest
Wind
9 km/h
2nd windiest
Solar energy
7.58 kWh/m²
Travel score
8.0
out of 10

Arica is city of Chile.

Air quality
Moderate
PM2.5 11.6 µg/m³ · 2019
Density
5,554/km²
people per km²
Founded
1541

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

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 25°C through the month.

A typical December day in Arica reaches about 25°C in the afternoon and slips back to 18°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 23°C and 26°C. Set against its neighbours, December runs about 2°C warmer than November and about 1°C cooler than January.

15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12417
22417
32417
42417
52417
62417
72417
82417
92418
102418
112418
122418
132418
142518
152518
162518
172518
182518
192518
202518
212518
222518
232518
242518
252518
262519
272519
282519
292519
302519
312519

Arica weather by month

How December compares with the rest of the year at a glance. December 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
Jan26° / 20°102.3137.4
Feb26° / 20°7212.67.4
Mar26° / 19°40.712.17.8
Apr24° / 18°71.711.68.0
May22° / 16°248.911.16.5
Jun20° / 14°3012.710.95.6
Jul19° / 13°2910.6115.7
Aug19° / 14°206.811.46.2
Sep20° / 14°154.411.96.7
Oct21° / 15°9212.47.3
Nov23° / 16°40.312.98.1
Dec25° / 18°50.813.18.0

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 11% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 26% of December, with mostly cloudy or overcast conditions the remaining 63%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14951
24852
34753
44753
54555
64456
74456
84357
94258
104258
114159
124060
134159
144060
153961
163862
173763
183664
193565
203367
213367
223169
233169
243070
252971
262872
272872
282773
292674
302674
312575

Chance of precipitation in December

Any precipitation

Arica gets around 5 mm of rain over 0.8 wet days in December. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 3% and peaks near 6% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
11
21
31
41
51
61
71
82
92
102
112
122
132
142
152
162
172
182
193
203
213
223
234
244
254
265
275
285
295
306
316

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, December lands in the comfortable band about 60% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
1181180
2180190
3179200
4079210
5078220
6077230
7075250
8074260
9073270
10071290
11070300
12068320
13067330
14066340
15065350
16062371
17061381
18060391
19058411
20056431
21054442
22052462
23050482
24048502
25046522
26043552
27041563
28038593
29036613
30034633
31032653

Wind in December

Winds average 9 km/h in December.

Across December, daily wind ranges from about 9 km/h on the calmest days to 9 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
19calm
29calm
39calm
49calm
59calm
69calm
79calm
89calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm
319calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 13 hours at the start of December to 13 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 6 minutes over December. Sunrise moves from 7:00 AM to 7:11 AM, and sunset from 8:02 PM to 8:17 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.07:008:02
213.07:008:02
313.07:008:03
413.17:018:04
513.17:018:04
613.17:018:05
713.17:018:05
813.17:028:06
913.17:028:07
1013.17:028:07
1113.17:028:08
1213.17:038:08
1313.17:038:09
1413.17:038:09
1513.17:048:10
1613.17:048:10
1713.17:058:11
1813.17:058:12
1913.17:058:12
2013.17:068:13
2113.17:068:13
2213.17:078:13
2313.17:078:14
2413.17:088:14
2513.17:088:15
2613.17:098:15
2713.17:098:16
2813.17:108:16
2913.17:108:16
3013.17:118:17
3113.17:118:17

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 7.58 kWh/m².

For context, solar energy here swings from a low near 4.24 kWh/m² to a high of 7.76 kWh/m² in November across the year — December's 7.58 kWh/m² sits near the top of that range.

02468151015202531
Solar energy (kWh/m²)Level
17.8Intense
27.8Intense
37.8Intense
47.8Intense
57.8Intense
67.8Intense
77.8Intense
87.8Intense
97.8Intense
107.8Intense
117.7Intense
127.7Intense
137.7Intense
147.7Intense
157.6Intense
167.6Intense
177.6Intense
187.5Intense
197.5Intense
207.5Intense
217.5Intense
227.4Intense
237.4Intense
247.3Intense
257.3Intense
267.3Intense
277.3Intense
287.2Intense
297.2Intense
307.2Intense
317.2Intense
Planning a trip in December

Is December a good time to visit Arica?

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

8.0
Sightseeing
2nd-best month of the year
7.1
Beach & pool
4th-best month of the year

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

What to pack for Arica in December

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

In December, Arica sees daytime highs around 25°C and nights near 18°C. Pack sun protection. Worth having: light clothes.

sun protectionlight clothes

Sea temperature near Arica in December

The nearest coast averages about 21°C in December — 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 February at about 23°C and coldest in August near 17°C.

It's comfortable for a long swim from Nov 28 to Apr 30 — about 5.1 months when the water holds above 20°C.

16°18°20°22°24°JanFebMarAprMayJunJulAugSepOctNovDeccoolrefreshingcomfortable to swim
Sea temperature (°C)Comfort
Jan22Refreshing
Feb23Refreshing
Mar22Refreshing
Apr20Refreshing
May20Cool
Jun19Cool
Jul17Cool
Aug17Cool
Sep17Cool
Oct18Cool
Nov20Cool
Dec21Refreshing

UV index in Arica in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 13 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Arica peaks around February 9 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 11 at about 7 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighVery highExtremeFeb 9UV 15Jul 11UV 7
UV index (midday)Level
Jan15Extreme
Feb15Extreme
Mar13Extreme
Apr11Extreme
May8Very high
Jun7High
Jul7High
Aug9Very high
Sep11Extreme
Oct13Extreme
Nov13Extreme
Dec13Extreme
Location & terrain

Where is Arica?

Arica sits at 18.5°S, 70.3°W, 80 m above sea level, in Chile. The nearest listed city is Tacna, 51 km away.

Topography around Arica

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

Within 3 km, the terrain around Arica has significant variations in elevation — a maximum elevation change of 290 m around an average of 49 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 863 m; within 80 km, extreme variations in elevation — a maximum elevation change of 4,342 m.

The land around Arica is covered by artificial surfaces (53%) and bare terrain (26%) within 3 km, bare terrain (56%) and water (37%) within 16 km, and bare terrain (69%) and water (27%) within 80 km.

3 km
290 m
16 km
863 m
80 km
4,342 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
December weather nearby: Tacna 51 km · Ilo 145 km · San Antonio 155 km · Moquegua 157 km · Iquique 194 km · Alto Hospicio 200 km · Pozo Almonte 205 km · Mollendo 243 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 Arica (-18.4755°, -70.3006°, elevation 80 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).