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Argentina

San Martín de los Andes weather & best time to visit

City break

San Martín de los Andes at a glance

Best time
Nov – Mar
Warmest month
Jan · 26°
Sunshine a year
2,280 h
Rain a year
727 mm
Climate
Temperate
Time zone
UTC−3
Elevation
651 m

Climate in San Martín de los Andes

San Martín de los Andes has a temperate climate with warm summers and cool winters. January is the warmest month with average highs of 26 °C, while July is the coolest at 8 °C. With around 2,280 hours of sunshine a year, San Martín de los Andes is sunny; January is the sunniest month with 10.0 hours a day.

Holiday weather through the year

Best time to visit

Best time to visit San Martín de los Andes

The best time to visit San Martín de los Andes is from November to March. For sightseeing, day trips and hiking, conditions are most comfortable from October to April. Rain is frequent from June to August; the wettest month is June with 151 mm.

San Martín de los Andes through the seasons

How the weather changes over the seasons, with averages for each.

San Martín de los Andes in spring

Sep – Nov

75

Good

  • 12–20 °C by day
  • 7.0 h of sun a day
  • 21 rainy days in all

San Martín de los Andes in summer

Dec – Feb

100

Excellent

  • 23–26 °C by day
  • 9.5 h of sun a day
  • 10 rainy days in all

San Martín de los Andes in autumn

Mar – May

69

Good

  • 12–22 °C by day
  • 5.1 h of sun a day
  • 21 rainy days in all

San Martín de los Andes in winter

Jun – Aug

14

Poor

  • 8–9 °C by day
  • 3.4 h of sun a day
  • 39 rainy days in all

Which month for what?

Beach & swimming

No sea nearby

Sea from 21 °C, warm and mostly dry

Sightseeing & hiking

Oct – Apr

15–28 °C and not too much rain

Rainy months

Jun – Aug

Rainy season or more than 12 rainy days

Snow

Jun – Sep

Snow on 2 or more days

Find your perfect month

Tell us what you like and we rate every month in San Martín de los Andes for you.

Sunshine
Little rain

Your best months: December – February

Based on the climate averages; tap a month to see its details.

Your holiday weather, at a glance

Weather in October

Weather in October

78

Holiday weather in October

Good

Best time to visit: November – March

Good forSightseeing & walks

A typical day in October

  1. Morning, 08:00: about 6°
  2. Midday, 13:00: about 15°
  3. Afternoon, 16:00: about 16°
  4. Evening, 20:00: about 12°
  5. Night, 23:00: about 8°

06:5920:03

Cool evenings: pack a jumper or a jacket.

Estimated from the average high and low: coolest around sunrise, warmest in mid-afternoon.

Light for photos in October

Golden hour
Morning 06:42–07:35 · evening 19:27–20:20
Blue hour
Morning 06:31–06:42 · evening 20:20–20:31

Golden hour: the sun between 4° below and 6° above the horizon; blue hour: 6° to 4° below it. Times for the 15th of the month; mountains and clouds shift the light.

October in San Martín de los Andes compared with home

Home:

Loading the climate at home …

Early or late October?

In October, daytime highs rise from about 14° at the start of the month to 18° at the end. The days get 1.3 h longer.

Early or late October?
October1 Oct31 Oct
Daytime high14°18°
Night-time low2°5°
Daylight12.5 h13.7 h

What is the weather like in San Martín de los Andes in October?

In October, San Martín de los Andes is mild: daytime highs average 16 °C, and nights cool down to about 3 °C. The sun shines for around 7.0 hours a day. Rain falls on about 7 days, adding up to 49 mm. All in all, October is a good month for a holiday in San Martín de los Andes.

More details for October

Daylight
13 h 5 min06:59 – 20:03
UV index
8 · very highclear sky, noon (estimate)All months
Muggy days
0 daysdew point 18 °C or moreAll months
Wind
18 km/haverage daily peakAll months
Cloud cover
52 %on averageAll months
Hot days
0 days30 °C or moreAll months
Snow days
1 day1 cm or more of fresh snowAll months
Time zone
UTC−3offset from UTC

How the score comes together

  • Temperatureweight 50 %84 %
  • Sunshineweight 20 %67 %
  • Few rainy daysweight 30 %76 %

Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.

What to pack in October

  • Sunscreen
  • Sunglasses & sun hat
  • A jumper for the evenings

Compare two months in San Martín de los Andes

Pick two months to see how the weather differs. A tick marks the clearly better value; for temperatures it depends on your plans.

vs

January has the better holiday weather in San Martín de los Andes: score 100 against 78. In January, days are 10 °C warmer than in October. January has 4 fewer rainy days. The sun shines 3 hours longer a day in January.

October vs January, San Martín de los Andes
MonthOctoberJanuary
Holiday weather score78100better
Daytime high16°26°
Night-time low3°10°
Sunshine7.0 h10.0 hbetter
Rainy days73better
Rainfall49 mm18 mmbetter

Based on the climate averages 1996–2025.

San Martín de los Andes month by month

The typical weather for every month at a glance.

100January26° · 10.0 h

In January, San Martín de los Andes is warm: daytime highs average 26 °C, and nights cool down to about 10 °C. With around 10.0 hours of sunshine a day, there is plenty of sun. Rain is rare: about 3 days bring 18 mm in total. On about 8 days the thermometer climbs to 30 °C or more. All in all, January is an excellent month for a holiday in San Martín de los Andes.

San Martín de los Andes in January
100February25° · 9.4 h

In February, San Martín de los Andes is warm: daytime highs average 25 °C, and nights cool down to about 10 °C. With around 9.4 hours of sunshine a day, there is plenty of sun. Rain is rare: about 3 days bring 17 mm in total. On about 6 days the thermometer climbs to 30 °C or more. All in all, February is an excellent month for a holiday in San Martín de los Andes.

San Martín de los Andes in February
92March22° · 7.1 h

In March, San Martín de los Andes is warm: daytime highs average 22 °C, and nights cool down to about 8 °C. The sun shines for around 7.1 hours a day. Rain is rare: about 5 days bring 24 mm in total. All in all, March is an excellent month for a holiday in San Martín de los Andes.

San Martín de los Andes in March
76April17° · 4.9 h

In April, San Martín de los Andes is mild: daytime highs average 17 °C, and nights cool down to about 5 °C. Expect around 4.9 hours of sunshine a day. Rain falls on about 6 days, adding up to 54 mm. All in all, April is a good month for a holiday in San Martín de los Andes.

San Martín de los Andes in April
39May12° · 3.2 h

In May, San Martín de los Andes is cool: daytime highs average 12 °C, and nights cool down to about 3 °C. The sun is scarce, with only about 3.2 hours a day. Rain is frequent, with about 10 rainy days and 85 mm in total. Snow falls on about 2 days. All in all, May is not an ideal month for a holiday in San Martín de los Andes.

San Martín de los Andes in May
8June8° · 2.7 h

In June, San Martín de los Andes is cold: daytime highs average 8 °C, and nights cool down to about 1 °C. The sun is scarce, with only about 2.7 hours a day. It rains often – on about 14 days, adding up to 151 mm. Snow falls on about 6 days. All in all, June is not an ideal month for a holiday in San Martín de los Andes.

San Martín de los Andes in June
12July8° · 3.2 h

In July, San Martín de los Andes is cold: daytime highs average 8 °C, and nights cool down to about 0 °C. The sun is scarce, with only about 3.2 hours a day. Rain is frequent, with about 13 rainy days and 112 mm in total. Snow falls on about 6 days. All in all, July is not an ideal month for a holiday in San Martín de los Andes.

San Martín de los Andes in July
23August9° · 4.4 h

In August, San Martín de los Andes is cold: daytime highs average 9 °C, and nights cool down to about 0 °C. Expect around 4.4 hours of sunshine a day. Rain is frequent, with about 12 rainy days and 106 mm in total. Snow falls on about 5 days. All in all, August is not an ideal month for a holiday in San Martín de los Andes.

San Martín de los Andes in August
52September12° · 5.8 h

In September, San Martín de los Andes is cool: daytime highs average 12 °C, and nights cool down to about 1 °C. Expect around 5.8 hours of sunshine a day. Rain falls on about 8 days, adding up to 55 mm. Snow falls on about 3 days. All in all, September is a so-so month for a holiday in San Martín de los Andes.

San Martín de los Andes in September
78October16° · 7.0 h

In October, San Martín de los Andes is mild: daytime highs average 16 °C, and nights cool down to about 3 °C. The sun shines for around 7.0 hours a day. Rain falls on about 7 days, adding up to 49 mm. All in all, October is a good month for a holiday in San Martín de los Andes.

San Martín de los Andes in October
94November20° · 8.3 h

In November, San Martín de los Andes is mild: daytime highs average 20 °C, and nights cool down to about 6 °C. The sun shines for around 8.3 hours a day. Rain falls on about 6 days, adding up to 32 mm. All in all, November is an excellent month for a holiday in San Martín de los Andes.

San Martín de los Andes in November
100December23° · 9.1 h

In December, San Martín de los Andes is warm: daytime highs average 23 °C, and nights cool down to about 8 °C. With around 9.1 hours of sunshine a day, there is plenty of sun. Rain is rare: about 4 days bring 24 mm in total. All in all, December is an excellent month for a holiday in San Martín de los Andes.

San Martín de los Andes in December

Climate in detail

Year & climate tableWarmest in January: 26°

Climate through the year

Long-term monthly averages. Tap a month to see its details.

Best time to visit

Nights and sleep in San Martín de los Andes

How warm the nights get in each month, from the mean night-time low. Tap a month for details.

  • Cold 0–8°
  • Cool 8–15°

ColdOctober: nights around 3°. The room should be heated.

The coolest nights are in July (0°), the warmest in January (10°). Nights fall below 8 °C on average from April to November, so the room should be heated.

Temperatures through the year

Average daytime high, night-time low and sea temperature per month.

OctoberDay 16°Night 3°
DayNight
MonthScoreDayNightSunRain daysRain mm
JanuaryJan10026°10°10.0 h318
FebruaryFeb10025°10°9.4 h317
MarchMar9222°8°7.1 h524
AprilApr7617°5°4.9 h654
MayMay3912°3°3.2 h1085
JuneJun88°1°2.7 h14151
JulyJul128°0°3.2 h13112
AugustAug239°0°4.4 h12106
SeptemberSep5212°1°5.8 h855
OctoberOct7816°3°7.0 h749
NovemberNov9420°6°8.3 h632
DecemberDec10023°8°9.1 h424

Climate averages 1996–2025 (sunshine partly WMO station normals 1991–2020), not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences

40.16° S, 71.35° W · 651 m · America/Argentina/Salta

Sunshine2,280 hours a year
Sunshine

Sunshine hours in San Martín de los Andes

Average hours of bright sunshine per day, next to the length of the day. Tap a month to select it.

Per year
2,280 hours
Sunniest month
Jan · 10.0 h a day
Least sunshine
Jun · 2.7 h a day
OctoberSunshine 7.0 hDaylight 13.1 hShare of daylight 53 %
SunshineDaylight

In October, the sun shines for about 7.0 of 13.1 hours of daylight in San Martín de los Andes, 53 % of the daylight hours.

Sunshine hours: estimated from radiation data (ERA5, 1996–2025) and calibrated against measured station values; no weather station is close enough here. Daylight is the time from sunrise to sunset on the 15th of the month.

Rain727 mm a year, most in June
Rain

Rain in San Martín de los Andes: rainy days and rainfall

A rainy day is a day with at least 1 mm of rain or snow; the amount is what falls in the whole month. Tap a month to select it.

Per year
727 mm on 91 days
Wettest month
Jun · 151 mm
Driest month
Feb · 17 mm
OctoberRainy days 7Rainfall 49 mm

In October, San Martín de los Andes has about 7 rainy days with 49 mm of rain in total.

UV indexUp to 10 in December
Sun protection

UV index in San Martín de los Andes

How strong the sun is at noon, month by month, and how quickly unprotected skin burns.

Clear-sky UV in October
8 · very highStay in the shade around midday; SPF 50, clothing, hat and sunglasses.

The sun is strongest in December (UV 10).

Minutes until sunburn in October

Very fair skin
about 20 min
Fair skin
about 20 min
Light brown skin
about 30 min
Olive skin
about 40 min

Rough guide for unprotected skin at noon under a clear sky; clouds lengthen the time, water, sand and snow shorten it. Sunscreen extends the time only partly.

Monthly values: clear-sky noon estimate from the sun's angle, ozone and altitude. UV today: Open-Meteo forecast.

Wind & cloudsWindiest in December: 20 km/h
Wind & clouds

Wind and clouds in San Martín de los Andes

How breezy and how cloudy San Martín de los Andes is through the year. Tap a month to select it on the whole page.

Wind

Typical daily peak of the wind in km/h: what the afternoon breeze usually reaches, not the gusts.

Year average
17 km/h · gentle breeze
Windiest month
Dec · 20 km/h
Calmest month
May · 14 km/h
OctoberWind 18 km/hBeaufort 3

In October, the wind in San Martín de los Andes typically peaks at 18 km/h during the day: Beaufort 3, gentle breeze.

Clouds

Average share of the sky covered by cloud, day and night.

Year average
51 % · variable cloud
Clearest month
Jan · 29 %
Cloudiest month
Jun · 71 %
OctoberCloud cover 52 %Sunshine 7.0 h

In October, cloud covers on average 52 % of the sky over San Martín de los Andes: variable cloud, with about 7.0 hours of sunshine a day.

Wind: mean daily maximum of the hourly wind 10 m above ground (ERA5, 1996–2025). Gusts are stronger, and the model grid of about 28 km smooths out local effects such as capes and valley winds. Clouds: mean total cloud cover of all layers over day and night (ERA5, 1996–2025). Thin high cloud counts as cover even when the sun still shines through.

Heat & humidity19 days of 30° or more a year
Heat & humidity

Heat and humidity in San Martín de los Andes

How often the day gets hot in San Martín de los Andes (30 °C and more), and in which months heat and humidity come together. Tap a month to select it.

Hot days a year
19 days
Hottest month
Jan · 26 °C
Hot months
none

Heat calendar

  • pleasant
  • some hot or muggy days
  • often muggy
  • often hot
  • hot and muggy
OctoberHot days (30 °C+) 0Daytime high 16 °C

In October, San Martín de los Andes has about 0 hot days, with an average daytime high of 16 °C: pleasant. Heat plays no part this month.

Hot days reach at least 30 °C; a month counts as muggy when the mean dew point reaches 18 °C on at least 15 days. Averages from ERA5 and ERA5-Land, 1996–2025. Muggy nights through the year

SnowChance of snow up to 51% in July
Snow

Snow in San Martín de los Andes

When San Martín de los Andes is likely to be white: the chance of seeing snow during a week's stay, the days with fresh snow and how much falls. Tap a month to select it.

Snow days a year
23 days
Fresh snow a year
98 cm
Snowy months
Jun – Jul

Snow calendar

  • hardly any
  • possible
  • likely
  • very likely
OctoberDays with fresh snow 1Fresh snow 4 cmChance of snow 17 / 100

In October, San Martín de los Andes has about 1 day with at least 1 cm of fresh snow, 4 cm in total. The chance of seeing snow during a week's stay is 17 out of 100: hardly any.

Snow days bring at least 1 cm of fresh snow. Fresh snow comes from ERA5 snowfall (1996–2025) at the height of the place, not on the slopes above it; the snow chance also weighs whether the snow settles. An estimate from climate averages, not a snow report.

Planning a trip to San Martín de los Andes

Weather for your travel dates

Pick your arrival and length of stay, and we sum up the weather to expect.

San Martín de los Andes in the school holidays

How the weather suits the usual holiday periods. Dates vary by school and region, so each holiday uses the months it usually falls in.

San Martín de los Andes has its best school-holiday weather during the Christmas holidays (score 100) and its weakest during the summer holidays (score 19).

  • Easter holidays

    Mar – Apr

    81

    Excellent

    • 19 °C by day
    • 5.6 h of sun a day
    • 6 rainy days a month

    Good for: Sightseeing & walks

  • May half-term

    May – Jun

    33

    Poor

    • 11 °C by day
    • 3.1 h of sun a day
    • 11 rainy days a month
  • Summer holidays

    Jul – Aug

    19

    Poor

    • 9 °C by day
    • 4.0 h of sun a day
    • 12 rainy days a month

    Keep in mind: Frequent rain, Snow

  • October half-term

    Oct

    78

    Good

    • 16 °C by day
    • 7.0 h of sun a day
    • 7 rainy days a month

    Good for: Sightseeing & walks

  • Christmas holidays

    Dec – Jan

    100

    ExcellentBest holidays

    • 25 °C by day
    • 9.6 h of sun a day
    • 3 rainy days a month

    Good for: Sightseeing & walks

Based on the climate averages 1996–2025.

Getting there

Flying from

Nonstop flight
about 15 h 15 min
Distance
12,280 km
Time zone
UTC−3
Jet lag
About 3 days (4 h west)

Rule of thumb for flying west: for a few days before, stay up a little later, and get afternoon and evening light at your destination.

Most routes need a change of planes, which adds time.

Estimated from the straight-line distance: 30 minutes for take-off and landing plus 830 km/h cruising speed.

Good to know: Argentina

Currency
Argentine Peso (ARS)
Language
Spanish
Sockets
Type C, I · 220 V
Dialling code
+54
Emergency number
911

UK plugs need a travel adapter

Sources: GeoNames (CC BY 4.0) and Wikidata (CC0). Please check details before you travel.

Compare & alternatives

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San Martín de los Andes compared

Put San Martín de los Andes side by side with another destination.

Nearby:
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San Martín de los Andes vs Bariloche

In October San Martín de los Andes has the better holiday weather (score 78 vs 66). During the day Bariloche is 1 °C cooler than San Martín de los Andes. Bariloche gets one hour less sunshine a day.

San Martín de los Andes vs Bariloche, in October
in OctoberSan Martín de los AndesBariloche
Holiday weather score7866
Daytime high16°15°
Sunshine7 h6 h
Rainy days79
Best timeNov – MarNov – Mar

Through the year

OctoberSan Martín de los Andes 16°Bariloche 15°
San Martín de los AndesBariloche
Go to Bariloche
Best places in the country
Ranking

Argentina in October: the best places

In October, San Martín de los Andes ranks 18 among the 31 nearest destinations in this country.

  1. Neuquén23°97
  2. 2Trelew22°97
  3. 3Comodoro Rivadavia19°9°96
  4. 4San Juan28°95
  5. 5Puerto San Julián17°7°92
  6. 6Mendoza24°89
  7. 7Bahía Blanca23°88
  8. 8Córdoba27°87
  9. 18San Martín de los AndesThis page16°78
All destinations: Argentina
Places nearby4 places within 189 km

Near San Martín de los Andes

Other destinations close by.

Places with a similar climatee.g. Ballarat and Daylesford

Places with a climate like San Martín de los Andes

Destinations whose weather through the year is closest to San Martín de los Andes's – good alternatives.

  1. 75 % similar74BallaratAustralia17°Best time: Nov – Apr
  2. 74 % similar76DaylesfordAustralia18°Best time: Nov – Apr
  3. 69 % similar75TemucoChile18°Best time: Nov – Mar
  4. 68 % similar70ValdiviaChile17°Best time: Dec – Mar

Frequently asked questions about San Martín de los Andes

When is the best time to visit San Martín de los Andes?

The best time to visit San Martín de los Andes is from November to March. That is when the holiday weather score, which combines temperature, sea, sunshine and rain, is highest.

What is the warmest month in San Martín de los Andes?

January is the warmest month, with average highs of 26 °C and nights around 10 °C. July is the coolest month at 8 °C.

When does it rain most in San Martín de los Andes?

Rain is frequent from June to August; the wettest month is June with 151 mm. The driest month is February with 17 mm.

How many hours of sunshine does San Martín de los Andes get?

San Martín de los Andes gets around 2,280 hours of sunshine a year. The sunniest month is January with 10.0 hours a day; in June there are 2.7 hours a day.

What time zone is San Martín de los Andes in?

San Martín de los Andes is on UTC−3 all year.

How long is the flight from London to San Martín de los Andes?

A nonstop flight from London to San Martín de los Andes takes about 15 h 15 min, for a straight-line distance of about 12,280 km. Most routes need a change of planes, which adds time.

Which school holidays are best for San Martín de los Andes?

San Martín de los Andes has its best school-holiday weather during the Christmas holidays (score 100) and its weakest during the summer holidays (score 19). Holiday ratings (0–100): Easter holidays 81, May half-term 33, summer holidays 19, October half-term 78, Christmas holidays 100.