Climate and average weather in Puerto Montt

In Puerto Montt, the summers are mild, showery, and partly cloudy and the winters are cool and mostly cloudy.

Best: early January to late March

Over the course of the year, the temperature in Puerto Montt typically varies from 5°C to 18°C, and is rarely below 2°C or above 22°C. February is the hottest month of the year, while July is the coldest.

Based on the travel score, the best times of year to visit Puerto Montt for warm-weather activities are from early January to late March and mid December to late December.

Hottest
Feb
18°
Coldest
Jul
Wettest
Jun
311 mm
Driest
Feb
98 mm
Rain / yr
2292 mm
192 wet days
Daylight
9.0–15.0 h
shortest–longest
Elevation
11 m
41.5°S
Clearest
Feb
55% cloud

Puerto Montt is city and capital of Los Lagos Region, Chile.

Air quality
High
PM2.5 27.9 µg/m³ · 2019
Density
4,826/km²
people per km²
Founded
1853

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

Puerto Montt 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 late March.

Temperature through the year

Average highAverage lowShaded bands: 10–90% of days

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

The hot season lasts 3.6 months, from December 5 to March 24, with daily high temperatures above 16°C. The hottest month of the year in Puerto Montt is February, with an average high of 18°C and low of 11°C.

The cool season lasts 3.4 months, from May 27 to September 6, with daily high temperatures below 11°C. The coldest month of the year in Puerto Montt is July, with an average low of 5°C and high of 10°C.

Days typically run about 6°C warmer than nights year-round.

10°15°20°25°JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°C)Avg low (°C)
Jan1811
Feb1811
Mar1710
Apr149
May128
Jun106
Jul105
Aug115
Sep126
Oct147
Nov159
Dec1710

Average hourly temperature in Puerto Montt

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 February afternoons, near 18°C, and coldest before dawn in July, near C.

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

Puerto Montt 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
Jan18° / 11°10111.1014.75.8
Feb18° / 11°989.4013.76.0
Mar17° / 10°13212.2012.35.1
Apr14° / 18315.2010.93.7
May12° / 26118.309.72.6
Jun10° / 31120.70.29.11.7
Jul10° / 27620.20.59.31.6
Aug11° / 27720.80.210.31.9
Sep12° / 18517.40.111.72.5
Oct14° / 18017.5013.13.1
Nov15° / 15115.4014.33.9
Dec17° / 10°13713.6014.94.9

Chance of rain

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

Puerto Montt gets about 2292 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 6.8 months, from around Apr 17 to Nov 8, peaking in June at about 69% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Feb 14.

June is the wettest month by volume, with 311 mm over about 21 wet days; February is the driest, with 98 mm.

0%10%20%30%40%50%60%70%80%JanFebMarAprMayJunJulAugSepOctNovDecdrierwetterdriermostly drysome rainoften wetvery wetJun 28 · 69%Feb 14 · 33%
Rain on a day (%)Rain days
Jan3611
Feb349
Mar4012
Apr5015
May5918
Jun6821
Jul6620
Aug6621
Sep5917
Oct5618
Nov5115
Dec4414

Monthly rainfall

Over a full year, Puerto Montt collects about 2292 mm of rain across 192 wet days — roughly 191 mm in an average month.

It doesn’t fall evenly. June is the wettest month with 311 mm, while February is the driest at just 98 mm. The three wettest months alone bring about 38% of the year’s total, and some of the cold-season precipitation falls as snow.

050100150200250300350JanFebMarAprMayJunJulAugSepOctNovDec10198132183261311276277185180151137
Rainfall (mm)Rain daysSnow days
Jan101110
Feb9890
Mar132120
Apr183150
May261180
Jun311210
Jul276201
Aug277210
Sep185170
Oct180180
Nov151150
Dec137140

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

In Puerto Montt, the average share of the sky covered by clouds shows significant seasonal variation over the course of the year.

The clearer part of the year begins around November 28 and lasts for 4.6 months, ending around April 16. The clearest month is February, when the sky is clear, mostly clear, or partly cloudy 52% of the time on average.

The cloudier part of the year begins around April 17 and lasts for 7.4 months, ending around November 27. The cloudiest month is June, when it is overcast or mostly cloudy 78% 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%JanFebMarAprMayJunJulAugSepOctNovDecFeb 8 · 55%Jun 27 · 20%clearmostly clearpartly cloudymostly cloudyovercastclearercloudierclearer
Clearer (%)Cloudier (%)
Jan4654
Feb5248
Mar4456
Apr3466
May2278
Jun2278
Jul2377
Aug2377
Sep2773
Oct2773
Nov3169
Dec3565

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 January 1, brings about 15 hours of light; the shortest, around June 13, only 9 hours — a swing of roughly 6 hours.

12 AM4 AM8 AM12 PM4 PM8 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDec
Daylight (h)Sunrise (AM)Sunset (PM)
Jan14.76:409:22
Feb13.77:178:56
Mar12.37:518:12
Apr10.98:257:19
May9.78:586:38
Jun9.19:216:23
Jul9.39:196:36
Aug10.38:467:05
Sep11.77:547:38
Oct13.17:038:11
Nov14.36:268:48
Dec14.96:189:17

Sunny days

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

Puerto Montt averages about 5 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 3 and 10 days.

The sunnier stretch runs 4.5 months, from around Nov 30 to Apr 15. The sunniest month is February, with roughly 10 sunny days (mixed).

The greyest month is June, down near 3 sunny days — about 72% fewer than the February peak.

051015JanFebMarAprMayJunJulAugSepOctNovDecsunniergreyersunniergloomymixedFeb 810 daysJun 243 days
Sunny daysSky
Jan9Mixed
Feb9Mixed
Mar8Gloomy
Apr5Gloomy
May3Gloomy
Jun3Gloomy
Jul4Gloomy
Aug3Gloomy
Sep4Gloomy
Oct4Gloomy
Nov4Gloomy
Dec6Gloomy

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 Puerto Montt, the air stays dry or comfortable essentially all year. Even in February, the muggiest month, it feels humid or worse only about 2% of the time — humidity is not something you need to plan around here.

0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDeccomfortabledry
Dry (%)Comfortable (%)Humid (%)
Jan81191
Feb79202
Mar87120
Apr9730
May9910
Jun10000
Jul10000
Aug10000
Sep10000
Oct10000
Nov9910
Dec9460

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 Puerto Montt is typically light breeze, near 13 km/h, and varies little with the seasons.

The windier part of the year lasts 3.7 months, from around May 15 to Sep 5. The windiest month is June, averaging about 15 km/h (light breeze).

The calmer part of the year runs from around Sep 6 to May 14, with March the calmest month at about 12 km/h.

05101520JanFebMarAprMayJunJulAugSepOctNovDeccalmerwindiercalmercalmlight breezeJun 9 · 15 km/hMar 27 · 12 km/h
Wind speed (km/h)Feels
Jan13light breeze
Feb12light breeze
Mar12calm
Apr12light breeze
May13light breeze
Jun15light breeze
Jul15light breeze
Aug14light breeze
Sep13light breeze
Oct13light breeze
Nov13light breeze
Dec13light breeze

Best time to visit Puerto Montt

TravelBeach/poolTemperatureCloudsPrecipitation

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

Around mid March, Puerto Montt 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 Puerto Montt for general outdoor tourist activities is from late December to late March, with a peak score in the second week of February.

0246810JanFebMarAprMayJunJulAugSepOctNovDecbest timetravel scoretemperaturecloudsprecipitationFeb 10 · 6.1

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
Jan5.8good
Feb6.0good
Mar5.1fair
Apr3.7fair
May2.6poor
Jun1.8poor
Jul1.6poor
Aug1.9poor
Sep2.5poor
Oct3.2poor
Nov3.9fair
Dec4.8fair

The beach/pool score favors clear, rainless days with daytime highs between 24°C and 34°C. Based on this score, the best time of year to visit Puerto Montt for hot-weather activities is from early January to late February, with a peak score in the last week of January.

024681012JanFebMarAprMayJunJulAugSepOctNovDecbest timebeach/pool scoretemperaturecloudsprecipitationJan 27 · 2.2

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 Puerto Montt, 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 February (highs near 18°C), the essentials are rain gear and sun protection. In the cold season around July (highs near 10°C), pack a warm layer and rain gear.

Light clothing
Warm layer
Winter coat
Rain gear
Sun protection
Windbreaker

In February, Puerto Montt sees daytime highs around 18°C and nights near 11°C. Worth packing: rain gear and sun protection. About 9 days see rain.

Sea temperature near Puerto Montt

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

The sea at the nearest coast (about 18 km away) is warmest in January at about 16°C and coldest in August near 10°C.

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

8°10°12°14°16°18°JanFebMarAprMayJunJulAugSepOctNovDecbracingcool
Sea temperature (°C)Comfort
Jan16Cool
Feb16Cool
Mar15Bracing
Apr13Bracing
May11Bracing
Jun11Bracing
Jul11Bracing
Aug10Bracing
Sep11Bracing
Oct12Bracing
Nov13Bracing
Dec15Bracing

UV index (midday) in Puerto Montt 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 Puerto Montt peaks around December 23 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 18 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 23UV 12Jun 18UV 1
UV index (midday)Level
Jan12Extreme
Feb11Extreme
Mar7High
Apr4Moderate
May2Moderate
Jun1Low
Jul2Low
Aug2Moderate
Sep4Moderate
Oct7High
Nov8Very high
Dec12Extreme

Average hourly UV index in Puerto Montt

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 December the burn window is concentrated in the middle of the day: about 9.5 hours a day reach index 3 (protection recommended), and 7 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)
Jan96.5
Feb85.5
Mar6.53
Apr40
May00
Jun00
Jul00
Aug00
Sep40
Oct6.53
Nov85
Dec9.57

Air quality in Puerto Montt by month

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see which months the air is worst, not just the yearly average.

Air quality in Puerto Montt is worst in March — around 34 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

Seasonal pattern from CAMS reanalysis, scaled to Puerto Montt's WHO annual average of 27.9 µg/m³.

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateMar 2133 µg/m³Jan 2323 µg/m³
PM2.5 (µg/m³)Level
Jan23Moderate
Feb23Moderate
Mar34Moderate
Apr31Moderate
May26Moderate
Jun23Moderate
Jul25Moderate
Aug30Moderate
Sep32Moderate
Oct29Moderate
Nov28Moderate
Dec29Moderate
Almanac & agriculture

Growing season

Chance of a frost-free dayFrost-free year round

Puerto Montt is frost-free year round — even the coldest nights rarely reach freezing, so there is no start or end to the growing season.

0%25%50%75%100%JanFebMarAprMayJunJulAugSepOctNovDecfrost-free year round
Frost-free chance (%)Frost nights
Jan1000
Feb1000
Mar1000
Apr1000
May1000
Jun980
Jul970
Aug980
Sep1000
Oct1000
Nov1000
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. Puerto Montt banks about 614 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around February.

0200400600800JanFebMarAprMayJunJulAugSepOctNovDec
Growing degree days (°C·days)
Jan145
Feb132
Mar109
Apr45
May7
Jun0
Jul0
Aug0
Sep0
Oct12
Nov56
Dec108

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.

Puerto Montt receives about 3.9 kWh/m² a day of solar energy on average — moderate — with a clear seasonal swing between 1.3 and 6.9 kWh/m².

The brighter stretch of the year lasts 5.9 months, from around Sep 27 to Mar 24. The brightest month is January, averaging about 6.8 kWh/m² (intense).

The dimmest month is June, down near 1.3 kWh/m² — roughly 81% less than the January peak.

012345678JanFebMarAprMayJunJulAugSepOctNovDecbrighterdimmerbrighterdimmoderatebrightintenseJan 96.9 kWhJun 221.3 kWh
Solar energy (kWh/m²)Level
Jan6.8Intense
Feb5.9Bright
Mar4.3Bright
Apr2.8Moderate
May1.7Dim
Jun1.3Dim
Jul1.5Dim
Aug2.2Moderate
Sep3.5Moderate
Oct4.8Bright
Nov5.9Bright
Dec6.7Intense

Where is Puerto Montt?

Puerto Montt sits at 41.5°S, 72.9°W, 11 m above sea level, in Chile. The nearest listed city is Puerto Varas, 17 km away.

Topography around Puerto Montt

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

Within 3 km, the terrain around Puerto Montt has only modest variations in elevation — a maximum elevation change of 147 m around an average of 66 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 426 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,668 m.

The land around Puerto Montt is covered by artificial surfaces (47%), water (25%) and trees (20%) within 3 km, trees (42%), water (30%) and grassland (23%) within 16 km, and trees (47%) and water (29%) within 80 km.

3 km
147 m
16 km
426 m
80 km
2,668 m
treesgrasslandcroplandartificial surfacesbare terrainsnow and icewater
Nearby: Puerto Varas 17 km · Llanquihue 24 km · Calbuco 37 km · Frutillar 40 km · Maullín 57 km · Purranque 64 km · Ancud 85 km · Osorno 101 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 Puerto Montt (-41.4693°, -72.9424°, 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. 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).