Puerto Madryn weather in December

In December, Puerto Madryn sees average daytime highs of 27°C and overnight lows near 14°C, with 18 mm of rain across 3.4 wet days and about 15.1 hours of daylight. It is the 3rd-warmest and 7th-wettest month of the year here.

Highs climb over the month, from about 26°C in the first days to 28°C by the end. The sky is clear or mostly clear about 52% of the time in December, and the air most often feels dry.

Daylight stretches from about 14 h 54 min at the start of December to 15 h 06 min by month's end. Set against the rest of the year, December is Puerto Madryn's 4th-clearest and 1st-windiest month. For the whole year in context, see Puerto Madryn's year-round climate.

Daytime high
27°
3rd warmest
Overnight low
14°
10th coldest
Rainfall
18 mm
3.4 wet days
Daylight
15 h 06 min
5:42 AM – 8:50 PM
Cloud cover
39%
4th clearest
Wind
21 km/h
1st windiest
Solar energy
8.03 kWh/m²
Travel score
7.9
out of 10

Puerto Madryn is coastal city in the province of Chubut, Argentina.

Density
196/km²
people per km²
Founded
1865

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

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 26°C in the first days to 28°C by the end.

A typical December day in Puerto Madryn reaches about 27°C in the afternoon and slips back to 14°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 32°C. Set against its neighbours, December runs about 3°C warmer than November and about 2°C cooler than January.

10°20°30°151015202531
Avg high (°C)Avg low (°C)
12613
22613
32613
42613
52613
62613
72614
82614
92614
102614
112614
122614
132614
142714
152714
162714
172714
182714
192714
202715
212715
222715
232715
242815
252815
262815
272815
282815
292815
302815
312815

How December really feels in Puerto Madryn

Once humidity and wind are folded in, December averages 0 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
0
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

December sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Puerto Madryn weather by month

How December compares with the rest of the year at a glance. December is the 3rd-warmest and 7th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan28° / 16°153.314.87.2
Feb27° / 15°233.213.77.9
Mar25° / 14°223.312.48.3
Apr21° / 10°192.910.97.7
May16° / 223.69.65.9
Jun13° / 223.98.94.0
Jul12° / 163.59.23.9
Aug15° / 163.410.35.1
Sep17° / 173.911.76.4
Oct21° / 204.213.27.5
Nov24° / 12°173.714.48.1
Dec27° / 14°183.415.17.9

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

Beyond those clear spells, partly cloudy skies cover about 22% of December, with mostly cloudy or overcast conditions the remaining 25%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17129
27228
37228
47228
57228
67228
77228
87228
97228
107327
117327
127327
137327
147426
157426
167426
177426
187426
197525
207624
217624
227723
237723
247723
257822
267822
277822
287921
297921
307921
317921

Chance of precipitation in December

Any precipitation

Puerto Madryn gets around 18 mm of rain over 3.4 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 10% and peaks near 11% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
110
210
310
410
510
611
711
811
911
1011
1111
1211
1311
1410
1510
1610
1710
1810
1910
2010
2110
2210
2310
2410
2510
2610
2711
2811
2911
3011
3111

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, December lands in the dry band about 96% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
19910
29910
39910
49910
59820
69820
79820
89820
99820
109730
119730
129730
139730
149730
159730
169730
179730
189730
199730
209730
219640
229541
239541
249541
259541
269451
279451
289451
299361
309361
319361

Wind in December

Winds average 21 km/h in December, the windiest month of the year.

Across December, daily wind ranges from about 20 km/h on the calmest days to 21 km/h at its breeziest. It stays fairly steady from day to day.

0510152025151015202531
Wind speed (km/h)Feels
121breezy
221breezy
321breezy
421breezy
521breezy
621breezy
721breezy
821breezy
921breezy
1021breezy
1121breezy
1221breezy
1321breezy
1421breezy
1521breezy
1621breezy
1721breezy
1821breezy
1921breezy
2021breezy
2121breezy
2221breezy
2320breezy
2420breezy
2520breezy
2620breezy
2720breezy
2820breezy
2920breezy
3020breezy
3120breezy

Sunrise & sunset in December

DaylightNight

Daylight runs from about 14 h 54 min at the start of December to 15 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 12 minutes over December. Sunrise moves from 5:42 AM to 5:50 AM, and sunset from 8:37 PM to 8:57 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.95:428:37
214.95:428:38
315.05:428:39
415.05:428:40
515.05:428:41
615.05:428:42
715.05:418:43
815.05:418:44
915.15:418:45
1015.15:418:46
1115.15:418:47
1215.15:428:47
1315.15:428:48
1415.15:428:49
1515.15:428:50
1615.15:428:50
1715.15:438:51
1815.15:438:52
1915.15:438:52
2015.25:448:53
2115.25:448:53
2215.25:458:54
2315.25:458:54
2415.25:468:55
2515.15:468:55
2615.15:478:55
2715.15:478:56
2815.15:488:56
2915.15:498:56
3015.15:498:56
3115.15:508:57

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 8.03 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 1.64 kWh/m² to a high of 8.03 kWh/m² in December across the year — December's 8.03 kWh/m² sits near the top of that range.

02468151015202531
Solar energy (kWh/m²)Level
17.8Intense
27.9Intense
37.9Intense
47.9Intense
57.9Intense
67.9Intense
77.9Intense
87.9Intense
98.0Intense
108.0Intense
118.0Intense
128.0Intense
138.0Intense
148.0Intense
158.0Intense
168.0Intense
178.0Intense
188.1Intense
198.1Intense
208.1Intense
218.1Intense
228.1Intense
238.1Intense
248.1Intense
258.1Intense
268.1Intense
278.1Intense
288.1Intense
298.1Intense
308.1Intense
318.1Intense
Planning a trip in December

Is December a good time to visit Puerto Madryn?

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

7.9
Sightseeing
3rd-best month of the year
7.9
Beach & pool
3rd-best month of the year

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

What to pack for Puerto Madryn in December

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

In December, Puerto Madryn sees daytime highs around 27°C and nights near 14°C. Pack sun protection. Worth having: light clothes and a windbreaker. About 3 days see rain.

sun protectionlight clothesa windbreaker

Sea temperature near Puerto Madryn in December

The nearest coast averages about 16°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 21 km away) is warmest in February at about 18°C and coldest in September near 11°C.

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

10°15°20°JanFebMarAprMayJunJulAugSepOctNovDecbracingcool
Sea temperature (°C)Comfort
Jan18Cool
Feb18Cool
Mar17Cool
Apr16Cool
May14Bracing
Jun13Bracing
Jul12Bracing
Aug11Bracing
Sep11Bracing
Oct12Bracing
Nov14Bracing
Dec16Cool

UV index in Puerto Madryn in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December 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 Puerto Madryn peaks around December 22 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 20 at about 1 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highModerateLowModerateVery highExtremeDec 22UV 12Jun 20UV 1
UV index (midday)Level
Jan11Extreme
Feb10Extreme
Mar7High
Apr4Moderate
May2Moderate
Jun1Low
Jul2Low
Aug2Moderate
Sep4Moderate
Oct7High
Nov9Very high
Dec12Extreme
Location & terrain

Where is Puerto Madryn?

Puerto Madryn sits at 42.8°S, 65.0°W, 11 m above sea level, in Argentina. The nearest listed city is Trelew, 58 km away.

San Antonio OesteViedmaCarmen de PatagonesComodoro RivadaviaRío ColoradoVilla Regina

Topography around Puerto Madryn

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

Within 3 km, the terrain around Puerto Madryn has only modest variations in elevation — a maximum elevation change of 72 m around an average of 17 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 144 m; within 80 km, significant variations in elevation — a maximum elevation change of 313 m.

The land around Puerto Madryn is covered by artificial surfaces (42%) and water (32%) within 3 km, shrubs (57%) and water (27%) within 16 km, and shrubs (60%) and water (30%) within 80 km.

3 km
72 m
16 km
144 m
80 km
313 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
December weather nearby: Trelew 58 km · Rawson 59 km · San Antonio Oeste 227 km · Viedma 275 km · Carmen de Patagones 277 km · Comodoro Rivadavia 396 km · Río Colorado 427 km · Villa Regina 443 km

Argentina travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type C / I
220 V · 50 Hz
Prices
≈ 46% of US
price level, 2025
GDP per capita
$14,898
2025
Happiness
6.4 / 10
World Happiness, 2025
Homicide rate
4.5
per 100k, 2023
Road deaths
14.1
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
High
EF EPI 575
Religion
Roman Catholic 63%none 19%Evangelical 15%Jehovah's Witness and Church of Jesus 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 Puerto Madryn (-42.7685°, -65.0383°, elevation 11 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).