Puerto Montt weather in August

In August, Puerto Montt sees average daytime highs of 11°C and overnight lows near 5°C, with 277 mm of precipitation across 20.8 wet days and about 10.3 hours of daylight. It is the 10th-warmest and 2nd-wettest month of the year here.

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

Daylight stretches from about 9 h 42 min at the start of August to 11 hours by month's end. Set against the rest of the year, August is Puerto Montt's 9th-clearest and 3rd-windiest month. For the whole year in context, see Puerto Montt's year-round climate.

Daytime high
11°
10th warmest
Overnight low
2nd coldest
Precipitation
277 mm
20.8 wet days
Daylight
10 h 18 min
8:46 AM – 7:05 PM
Cloud cover
75%
9th clearest
Wind
14 km/h
3rd windiest
Solar energy
2.2 kWh/m²
Travel score
1.9
out of 10

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.

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 11°C through the month.

A typical August day in Puerto Montt reaches about 11°C in the afternoon and slips back to 5°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 8°C and 13°C. Set against its neighbours, August runs about 1°C warmer than July and about 1°C cooler than September.

10°15°151015202531
Avg high (°C)Avg low (°C)
1105
2105
3105
4105
5105
6105
7105
8105
9105
10105
11105
12105
13115
14115
15115
16115
17115
18116
19116
20116
21116
22116
23116
24116
25116
26116
27116
28116
29116
30116
31116

Puerto Montt weather by month

How August compares with the rest of the year at a glance. August is the 10th-warmest and 2nd-wettest month here — the current month is highlighted below.

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

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

Beyond those clear spells, partly cloudy skies cover about 12% of August, with mostly cloudy or overcast conditions the remaining 77%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
12476
22476
32476
42476
52278
62278
72278
82278
92278
102179
112179
122179
132278
142278
152278
162278
172179
182179
192179
202278
212278
222278
232278
242278
252377
262476
272476
282476
292476
302476
312575

Chance of precipitation in August

Any precipitation

Puerto Montt gets around 277 mm of rain and snow over 20.8 wet days in August. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 66% and peaks near 68% on the wettest days, and about 0 day brings snow.

0%20%40%60%80%151015202531
Rain chance (%)
165
266
366
466
566
667
767
867
968
1068
1168
1267
1367
1467
1566
1666
1766
1866
1966
2066
2166
2266
2365
2465
2565
2664
2764
2864
2964
3064
3164

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, August lands in the dry band about 100% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)
1100
2100
3100
4100
5100
6100
7100
8100
9100
10100
11100
12100
13100
14100
15100
16100
17100
18100
19100
20100
21100
22100
23100
24100
25100
26100
27100
28100
29100
30100
31100

Wind in August

Winds average 14 km/h in August.

Across August, daily wind ranges from about 14 km/h on the calmest days to 15 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
115light breeze
215light breeze
315light breeze
415light breeze
515light breeze
615light breeze
715light breeze
815light breeze
915light breeze
1015light breeze
1114light breeze
1214light breeze
1314light breeze
1414light breeze
1514light breeze
1614light breeze
1714light breeze
1814light breeze
1914light breeze
2014light breeze
2114light breeze
2214light breeze
2314light breeze
2414light breeze
2514light breeze
2614light breeze
2714light breeze
2814light breeze
2914light breeze
3014light breeze
3114light breeze

Sunrise & sunset in August

DaylightNight

Daylight runs from about 9 h 42 min at the start of August to 11 hours by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 78 minutes over August. Sunrise moves from 9:06 AM to 8:22 AM, and sunset from 6:50 PM to 7:21 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.79:066:50
29.89:046:51
39.89:036:52
49.99:026:53
59.99:016:54
69.99:006:55
710.08:586:56
810.08:576:57
910.08:566:58
1010.18:556:59
1110.18:537:00
1210.28:527:01
1310.28:517:02
1410.28:497:03
1510.38:487:04
1610.38:467:05
1710.48:457:07
1810.48:437:08
1910.48:427:09
2010.58:407:10
2110.58:397:11
2210.68:377:12
2310.68:367:13
2410.78:347:14
2510.78:327:15
2610.88:317:16
2710.88:297:17
2810.88:277:18
2910.98:267:19
3010.98:247:20
3111.08:227:21

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 2.2 kWh/m².

For context, solar energy here swings from a low near 1.26 kWh/m² to a high of 6.83 kWh/m² in January across the year — August's 2.2 kWh/m² falls in the middle.

0123151015202531
Solar energy (kWh/m²)Level
11.8Dim
21.8Dim
31.9Dim
41.9Dim
51.9Dim
61.9Dim
72.0Dim
82.0Dim
92.0Moderate
102.0Moderate
112.1Moderate
122.1Moderate
132.1Moderate
142.1Moderate
152.2Moderate
162.2Moderate
172.2Moderate
182.3Moderate
192.3Moderate
202.3Moderate
212.3Moderate
222.4Moderate
232.4Moderate
242.5Moderate
252.5Moderate
262.5Moderate
272.6Moderate
282.6Moderate
292.7Moderate
302.7Moderate
312.8Moderate
Planning a trip in August

Is August a good time to visit Puerto Montt?

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

1.9
Sightseeing
10th-best month of the year
0.0
Beach & pool
8th-best month of the year

August is a weaker month for outdoor sightseeing in Puerto Montt.

What to pack for Puerto Montt in August

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

In August, Puerto Montt sees daytime highs around 11°C and nights near 5°C. Pack a warm layer and rain gear. About 21 days see rain.

a warm layerrain gear

Sea temperature near Puerto Montt in August

The nearest coast averages about 10°C in August — the other half of the beach question. The full-year curve and swim-comfort zones are below.

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 in Puerto Montt in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 2. The full-year curve, shaded by WHO exposure level, is below.

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

Air quality in Puerto Montt in August

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where August falls, not just the annual 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
Location & terrain

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
August weather 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).