Climate and average weather in Punta Arenas

In Punta Arenas, the summers are cool, wet, and mostly cloudy and the winters are cold, snowy, and mostly cloudy.

Best: early January to mid March

Over the course of the year, the temperature in Punta Arenas typically varies from -1°C to 12°C, and is rarely below -5°C or above 15°C. January is the hottest month of the year, while July is the coldest.

Based on the travel score, the best time of year to visit Punta Arenas for warm-weather activities is from early January to mid March.

Hottest
Jan
12°
Coldest
Jul
-1°
Wettest
Jan
89 mm
Driest
Sep
54 mm
Rain / yr
848 mm
187 wet days
Daylight
7.3–16.7 h
shortest–longest
Elevation
53.2°S
Clearest
Jun
70% cloud

Punta Arenas is Chilean city beside the Strait of Magellan.

Air quality
Excellent
PM2.5 4.6 µg/m³ · 2019
Density
3,121/km²
people per km²
Founded
1848

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

Punta Arenas weather by month, at a glance

The whole year in one picture — sky, rain, humidity, temperature and travel score. Click any band to jump to its full chart.

Each stripe is one measure across the whole year, stacked so a single day reads top to bottom. The sky band runs overcast grey on top down to clear blue at the base — more blue means sunnier — followed by the rainfall curve, the humidity band, a temperature strip that tints each stretch of the year by how warm its average high is, and the travel-score line at the foot. Scan straight down any date to read that day across every measure at once; the score climbs highest around early January to mid March.

Temperature through the year

Average highAverage lowShaded bands: 10–90% of days

Daily average highs and lows in Punta Arenas, from 1991–2020 of climate data. The shaded bands show the range most days fall in — 10th to 90th percentile.

The hot season lasts 4.5 months, from November 16 to March 31, with daily high temperatures above 10°C. The hottest month of the year in Punta Arenas is January, with an average high of 12°C and low of 6°C.

The cool season lasts 3.1 months, from May 27 to August 27, with daily high temperatures below 5°C. The coldest month of the year in Punta Arenas is July, with an average low of -1°C and high of 3°C.

Days typically run about 5°C warmer than nights year-round.

-10°-5°10°15°JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°C)Avg low (°C)
Jan126
Feb126
Mar116
Apr84
May62
Jun40
Jul3-1
Aug40
Sep61
Oct83
Nov104
Dec116

How hot and cold Punta Arenas really feels

Feels-like highFeels-like lowactual air temp

The felt-temperature range through the year — heat index on the day's high (summer humidity), wind chill on the night's low (winter wind). The dashed lines are the plain thermometer; the gap is how much hotter or colder it really feels.

On the coldest nights, wind chill pulls the feels-like down to about -6°C (around July 10), with roughly 226 freezing days a year (feels-like at or below 0°C), worst in July.

-10°-5°10°15°JanFebMarAprMayJunJulAugSepOctNovDec
Feels-like high (°C)Air high (°C)Feels-like low (°C)Air low (°C)
Jan121236
Feb121236
Mar111126
Apr8804
May66-32
Jun34-50
Jul33-6-1
Aug44-50
Sep66-31
Oct88-23
Nov101004
Dec111116

Average hourly temperature in Punta Arenas

A compact picture of the whole year, hour by hour: each column is a day, each row an hour, and the color is the modeled average temperature. Darker overlays mark night, lighter ones the civil-twilight hours around sunrise and sunset.

Read left to right for the day of the year and top to bottom for the hour of the day; the color is the modeled temperature, cool blues through to hot reds on the same scale as the other charts. A vertical slice is a single day's swing — coolest just before dawn, warmest in the mid-afternoon — while a horizontal slice follows one hour across the seasons. The darker overlay marks night and the lighter one the twilight around sunrise and sunset. Colors run warmest on January afternoons, near 12°C, and coldest before dawn in July, near -1°C.

JanFebMarAprMayJunJulAugSepOctNovDec12 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AM

Punta Arenas weather by month

Every month at a glance. Click a month for its detailed page.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan12° / 8920016.12.3
Feb12° / 6715.3014.52.5
Mar11° / 8317.40.312.52.0
Apr / 8415.41.310.41.3
May / 6013.22.98.40.4
Jun / -0°5612.45.87.40.0
Jul / -1°5612.96.67.80.0
Aug / 6213.46.79.50.0
Sep / 5412.23.611.60.5
Oct / 6915.52.313.71.2
Nov10° / 7818.30.315.61.6
Dec11° / 8820.70.216.61.9

Chance of rain

How likely it is to rain on a typical day, and how that shifts across the wetter and drier seasons.

Punta Arenas gets about 848 mm of precipitation a year. On a typical day the chance of rain is very wet, but that rises and falls sharply with the seasons.

The wetter season lasts 6.1 months, from around Oct 13 to Apr 16, peaking in December at about 69% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Sep 26.

January is the wettest month by volume, with 89 mm over about 20 wet days; September is the driest, with 54 mm. Some of the cold-season precipitation falls as snow.

0%10%20%30%40%50%60%70%80%JanFebMarAprMayJunJulAugSepOctNovDecwetterdrierwettermostly drysome rainoften wetvery wetDec 18 · 69%Sep 26 · 40%
Rain on a day (%)Rain days
Jan6320
Feb5615
Mar5617
Apr5115
May4313
Jun4112
Jul4213
Aug4313
Sep4112
Oct5016
Nov6018
Dec6821

Monthly rainfall

Over a full year, Punta Arenas collects about 848 mm of rain across 187 wet days — roughly 71 mm in an average month.

It doesn’t fall evenly. January is the wettest month with 89 mm, while September is the driest at just 54 mm. The three wettest months alone bring about 31% of the year’s total, and some of the cold-season precipitation falls as snow.

0255075100125JanFebMarAprMayJunJulAugSepOctNovDec896783846056566254697888
Rainfall (mm)Rain daysSnow days
Jan89200
Feb67150
Mar83170
Apr84151
May60133
Jun56126
Jul56137
Aug62137
Sep54124
Oct69162
Nov78180
Dec88210

Snow in Punta Arenas

Average snowy days through the year, the snow-season span, and estimated snowfall — for ski trips and the perennial 'will there be snow at Christmas?' question.

Punta Arenas averages about 30 snowy days a year. Snow season runs roughly Mar 31 to Nov 12 — about 7.5 months.

August is snowiest, with roughly 7 days of snow and an estimated 29 cm of snowfall. Over the year that adds up to an estimated 117 cm of snow.

0246810JanFebMarAprMayJunJulAugSepOctNovDecsnow seasonAug 9
Snow daysSnowfall (cm)
Jan00
Feb00
Mar01
Apr17
May39
Jun622
Jul723
Aug729
Sep415
Oct29
Nov01
Dec01

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

How often the daytime sky is clear, partly cloudy or overcast.

In Punta Arenas, the average share of the sky covered by clouds shows moderate seasonal variation over the course of the year.

The clearer part of the year begins around April 29 and lasts for 4.9 months, ending around September 25. The clearest month is August, when the sky is clear, mostly clear, or partly cloudy 35% of the time on average.

The cloudier part of the year begins around September 26 and lasts for 7.1 months, ending around April 28. The cloudiest month is November, when it is overcast or mostly cloudy 79% of the time.

0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%JanFebMarAprMayJunJulAugSepOctNovDecAug 13 · 36%Jan 3 · 20%clearmostly clearpartly cloudymostly cloudyovercastcloudierclearercloudier
Clearer (%)Cloudier (%)
Jan2278
Feb2476
Mar2476
Apr2476
May3268
Jun3268
Jul3367
Aug3565
Sep2971
Oct2377
Nov2179
Dec2278

Daylight, sunrise and sunset

DaylightNight

Hours of daylight through the year, with sunrise and sunset times.

The gold band is daylight — sunrise runs along its lower edge, sunset along the upper — so it widens toward summer and pinches toward winter, with night the dark area above and below. The longest day, around December 14, brings about 16 h 42 min of light; the shortest, around June 14, only 7 h 18 min — a swing of roughly 9 h 24 min.

12 AM4 AM8 AM12 PM4 PM8 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDec
Daylight (h)Sunrise (AM)Sunset (PM)
Jan16.15:479:58
Feb14.56:429:14
Mar12.57:388:09
Apr10.48:346:53
May8.49:275:52
Jun7.410:045:24
Jul7.89:575:42
Aug9.59:056:31
Sep11.67:507:26
Oct13.76:378:20
Nov15.65:399:19
Dec16.65:1910:00

Sunny days

How many genuinely sunny days each month brings — days the sky stays clear or mostly clear — banded into plain-language zones.

Punta Arenas averages about 3 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 1 and 6 days.

The sunnier stretch runs 5.4 months, from around Apr 24 to Oct 3. The sunniest month is June, with roughly 6 sunny days (gloomy).

The greyest month is December, down near 1 sunny days — about 83% fewer than the June peak.

0510JanFebMarAprMayJunJulAugSepOctNovDecgreyersunniergreyergloomymixedJun 56 daysDec 171 days
Sunny daysSky
Jan2Gloomy
Feb2Gloomy
Mar2Gloomy
Apr2Gloomy
May5Gloomy
Jun6Gloomy
Jul5Gloomy
Aug5Gloomy
Sep4Gloomy
Oct2Gloomy
Nov2Gloomy
Dec1Gloomy

Humidity comfort

DryComfortableHumidMuggyOppressiveMiserable

Share of days at each humidity comfort level, based on the dew point — the measure that tracks how muggy it actually feels.

Humidity comfort is graded by the dew point — the temperature at which the air would be fully saturated — because it tracks how muggy it actually feels far better than relative humidity does. A low dew point feels dry and crisp; a high one feels sticky and oppressive no matter the reading on a humidity gauge.

In Punta Arenas, the air stays dry or comfortable essentially all year. Even in January, the muggiest month, it feels humid or worse only about 0% of the time — humidity is not something you need to plan around here.

0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecdry
Dry (%)
Jan100
Feb100
Mar100
Apr100
May100
Jun100
Jul100
Aug100
Sep100
Oct100
Nov100
Dec100

Wind

Average wind speed through the year, banded into plain-language speed zones so a number reads as 'breezy' or 'calm' without knowing the scale.

This is the average sustained wind speed at the standard 10 metres above open ground — the steady flow a weather station reports, not the sharper gusts that come and go, which can run half again as fast. It's the number that says whether a place is generally breezy or calm.

Across the year, average wind speed in Punta Arenas is typically breezy, near 21 km/h, and varies moderately with the seasons.

The windier part of the year lasts 5.9 months, from around Oct 4 to Apr 2. The windiest month is November, averaging about 23 km/h (breezy).

The calmer part of the year runs from around Apr 3 to Oct 3, with June the calmest month at about 17 km/h.

051015202530JanFebMarAprMayJunJulAugSepOctNovDecwindiercalmerwindiercalmlight breezebreezywindyNov 23 · 24 km/hJun 22 · 17 km/h
Wind speed (km/h)Feels
Jan23breezy
Feb22breezy
Mar21breezy
Apr20light breeze
May18light breeze
Jun17light breeze
Jul18light breeze
Aug19light breeze
Sep20light breeze
Oct22breezy
Nov23breezy
Dec23breezy

Best time to visit Punta Arenas

TravelBeach/poolTemperatureCloudsPrecipitation

To characterize how pleasant the weather is in Punta Arenas throughout the year, we compute two travel scores — one for general sightseeing, one for beach and pool weather.

Around mid March, Punta Arenas is still near the tail of its best-weather window — great conditions with the peak-season crowds already thinning.

Inferred from the travel-score curve; month-by-month visitor numbers are a planned addition.

The travel score favors clear, rainless days with daytime highs between 18°C and 28°C. Based on this score, the best time of year to visit Punta Arenas for general outdoor tourist activities is from late December to mid March, with a peak score in the second week of February.

0246810JanFebMarAprMayJunJulAugSepOctNovDecbest timetravel scoretemperaturecloudsprecipitationFeb 9 · 2.5

The travel score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

Travel score (0–10)Rating
Jan2.3poor
Feb2.5poor
Mar2.0poor
Apr1.3poor
May0.4poor
Jun0.0poor
Jul0.0poor
Aug0.0poor
Sep0.5poor
Oct1.2poor
Nov1.6poor
Dec1.9poor

The beach/pool score favors clear, rainless days with daytime highs between 24°C and 34°C. Punta Arenas rarely gets warm enough to lift this score — no time of year really suits hot-weather activities here.

024681012JanFebMarAprMayJunJulAugSepOctNovDectemperaturecloudsprecipitation

The beach/pool score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

What to pack for Punta Arenas, by month

EssentialRecommendedOptional

Month by month, what's worth putting in the bag — from the temperature range, rain chance, sun and wind. Tap a month for a quick packing note.

For a warm-season trip around January (highs near 12°C), the essentials are a warm layer, rain gear, sun protection and a windbreaker. In the cold season around July (highs near 3°C), pack a warm layer, a heavy coat and rain gear.

Light clothing
Warm layer
Winter coat
Rain gear
Sun protection
Windbreaker

In January, Punta Arenas sees daytime highs around 12°C and nights near 6°C. Pack a warm layer and rain gear. Worth having: sun protection and a windbreaker. About 20 days see rain.

Sea temperature near Punta Arenas

Average ocean temperature at the nearest coast, month by month, banded into swim-comfort zones — the other half of the beach question.

The sea offshore is warmest in February at about 9°C and coldest in August near 6°C.

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

4°6°8°10°JanFebMarAprMayJunJulAugSepOctNovDecbracing
Sea temperature (°C)Comfort
Jan9Bracing
Feb9Bracing
Mar9Bracing
Apr8Bracing
May7Bracing
Jun7Bracing
Jul6Bracing
Aug6Bracing
Sep6Bracing
Oct6Bracing
Nov7Bracing
Dec8Bracing

UV index (midday) in Punta Arenas by month

LowModerateHighVery highExtreme

Clear-sky midday UV index through the year, shaded by the WHO exposure levels — how much sun protection each month calls for.

Under clear skies, the midday UV index in Punta Arenas peaks around January 13 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near June 19 at about 0 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 6 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highModerateLowModerateHighVery highJan 13UV 9Jun 19UV 0
UV index (midday)Level
Jan9Very high
Feb7Very high
Mar4Moderate
Apr2Low
May1Low
Jun0Low
Jul1Low
Aug1Low
Sep2Moderate
Oct4Moderate
Nov6High
Dec8Very high

Average hourly UV index in Punta Arenas

LowModerateHighVery highExtreme

Modeled clear-sky UV for every hour of every day — when in the day sun protection actually matters.

The whole year hour by hour: each column is a day, each row an hour, and the color is the modeled clear-sky UV index — the midday peak scaled down as the sun sits lower in the sky. Darker overlays mark night, lighter ones the civil-twilight hours around sunrise and sunset.

UV falls off far faster than brightness as the sun drops, so even in January the burn window is concentrated in the middle of the day: about 8.5 hours a day reach index 3 (protection recommended), and 5.5 hours reach 6 or more. Mornings and late afternoons stay comparatively gentle year round.

JanFebMarAprMayJunJulAugSepOctNovDec12 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AM
UV ≥ 3 (h/day)UV ≥ 6 (h/day)
Jan8.55.5
Feb7.54
Mar3.50
Apr00
May00
Jun00
Jul00
Aug00
Sep00
Oct4.50
Nov70
Dec8.55
Almanac & agriculture

Growing season

Chance of a frost-free dayTypical season (≥50%)

The growing season in Punta Arenas typically lasts about 294 days, from around August 19 to June 8 — the span where a frost-free day is more likely than not. It is reliably frost-free from October 4 to May 2.

0%25%50%75%100%JanFebMarAprMayJunJulAugSepOctNovDecgrowing seasongrowing seasonAug 1950%Oct 490%May 290%Jun 850%
Frost-free chance (%)Frost nights
Jan1000
Feb1000
Mar1000
Apr960
May7831
Jun4530
Jul4031
Aug5031
Sep7530
Oct9310
Nov980
Dec1000

Growing degree days

Degree days (base 10°C)Frost-free shaded

Growing degree days tally heat above 10°C: each day adds however many degrees its average temperature runs over that threshold, and cold days add nothing. Punta Arenas banks about 0 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around January.

050100150200JanFebMarAprMayJunJulAugSepOctNovDec
Growing degree days (°C·days)
Jan0
Feb0
Mar0
Apr0
May0
Jun0
Jul0
Aug0
Sep0
Oct0
Nov0
Dec0

Solar energy

Average daily shortwave solar energy reaching the ground, banded into brightness zones so the number means something at a glance.

Solar energy is how much sunlight actually reaches the ground each day, measured in kilowatt-hours per square metre (kWh/m²) — the combined effect of how long the sun is up, how high it climbs, and how much cloud gets in the way. It's the raw fuel a solar panel has to work with: for scale, 1 kWh/m² a day is dim and wintry, while 7+ is desert-bright.

Punta Arenas receives about 3.0 kWh/m² a day of solar energy on average — moderate — with a clear seasonal swing between 0.6 and 5.8 kWh/m².

The brighter stretch of the year lasts 5.7 months, from around Sep 23 to Mar 13. The brightest month is December, averaging about 5.8 kWh/m² (bright).

The dimmest month is June, down near 0.7 kWh/m² — roughly 89% less than the December peak.

01234567JanFebMarAprMayJunJulAugSepOctNovDecbrighterdimmerbrighterdimmoderatebrightintenseDec 205.8 kWhJun 180.6 kWh
Solar energy (kWh/m²)Level
Jan5.3Bright
Feb4.3Bright
Mar2.9Moderate
Apr1.7Dim
May0.9Dim
Jun0.7Dim
Jul0.8Dim
Aug1.6Dim
Sep2.7Moderate
Oct4.2Bright
Nov5.4Bright
Dec5.8Bright

Where is Punta Arenas?

Punta Arenas sits at 53.2°S, 70.9°W, in Chile. The nearest listed city is Puerto Natales, 193 km away.

Río GrandeUshuaiaEl CalafateEl ChaltenPuerto DeseadoPico Truncado

What Punta Arenas looks like

Topography around Punta Arenas

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

Within 3 km, the terrain around Punta Arenas has only modest variations in elevation — a maximum elevation change of 97 m around an average of 21 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 620 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,226 m.

The land around Punta Arenas is covered by artificial surfaces (43%) and water (40%) within 3 km, water (48%), grassland (28%) and trees (21%) within 16 km, and grassland (40%) and water (40%) within 80 km.

3 km
97 m
16 km
620 m
80 km
1,226 m
treesgrasslandcroplandartificial surfacesbare terrainwater
Nearby: Puerto Natales 193 km · Río Gallegos 205 km · Río Grande 223 km · Ushuaia 250 km · El Calafate 328 km · El Chalten 448 km · Puerto Deseado 698 km · Pico Truncado 738 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 Punta Arenas (-53.1628°, -70.9092°), 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).