AI-generatedEl Chaltén at a glance
- Best time
- Feb
- Warmest month
- Feb · 13°
- Sunshine a year
- 2,180 h
- Rain a year
- 1,621 mm
- Climate
- Maritime
- Time zone
- UTC−3
- Elevation
- 401 m
Climate in El Chaltén
El Chaltén has a maritime climate with moderate summers and cool, often grey winters. February is the warmest month with average highs of 13 °C, while July is the coolest at 4 °C. With around 2,180 hours of sunshine a year, El Chaltén is moderately sunny; January is the sunniest month with 8.3 hours a day.
Holiday weather through the year
Best time to visit El Chaltén
The best time to visit El Chaltén is in February. The wettest month is April with 169 mm of precipitation.
El Chaltén through the seasons
How the weather changes over the seasons, with averages for each.
El Chaltén in spring
Sep – Nov
Poor
- 6–9 °C by day
- 6.9 h of sun a day
- 46 rainy days in all
El Chaltén in summer
Dec – Feb
Fair
- 11–13 °C by day
- 8.0 h of sun a day
- 54 rainy days in all
El Chaltén in autumn
Mar – May
Poor
- 7–12 °C by day
- 5.1 h of sun a day
- 54 rainy days in all
El Chaltén in winter
Jun – Aug
Poor
- 4–5 °C by day
- 3.8 h of sun a day
- 49 rainy days in all
Which month for what?
Beach & swimming
No sea nearby
Sea from 21 °C, warm and mostly dry
Sightseeing & hiking
No month
15–28 °C and not too much rain
Rainy months
All year
Rainy season or more than 12 rainy days
Snow
Apr – Nov
Snow on 2 or more days
Find your perfect month
Tell us what you like and we rate every month in El Chaltén for you.
Your best months: January – February, November
Based on the climate averages; tap a month to see its details.
Weather in October
Weather in October
Holiday weather in October
Poor
Best time to visit: February
Keep in mindFrequent rainSnow
A typical day in October
- Morning, 08:00: about 2°
- Midday, 13:00: about 6°
- Afternoon, 16:00: about 7°
- Evening, 20:00: about 5°
- Night, 23:00: about 3°
06:5320:21
Cold evenings: bring a warm jacket.
Estimated from the average high and low: coolest around sunrise, warmest in mid-afternoon.
Light for photos in October
- Golden hour
- Morning 06:33–07:36 · evening 19:39–20:41
- Blue hour
- Morning 06:20–06:33 · evening 20:41–20:54
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 El Chaltén compared with home
Loading the climate at home …
Early or late October?
In October, daytime highs rise from about 6° at the start of the month to 8° at the end. The days get 1.7 h longer.
| October | 1 Oct | 31 Oct |
|---|---|---|
| Daytime high | 6° | 8° |
| Night-time low | 0° | 2° |
| Daylight | 12.6 h | 14.4 h |
What is the weather like in El Chaltén in October?
In October, El Chaltén is cold: daytime highs average 7 °C, and nights cool down to about 1 °C. The sun shines for around 6.7 hours a day. It rains often – on about 16 days, adding up to 126 mm. Snow falls on about 8 days. All in all, October is not an ideal month for a holiday in El Chaltén.
More details for October
- Daylight
- 13 h 28 min06:53 – 20:21
- UV index
- 5 · moderateclear sky, noon (estimate)All months
- Muggy days
- 0 daysdew point 18 °C or moreAll months
- Wind
- 19 km/haverage daily peakAll months
- Cloud cover
- 66 %on averageAll months
- Hot days
- 0 days30 °C or more
- Snow days
- 8 days1 cm or more of fresh snowAll months
- Time zone
- UTC−3offset from UTC
How the score comes together
- Temperatureweight 50 %0 %
- Sunshineweight 20 %62 %
- Few rainy daysweight 30 %16 %
Each factor is rated from 0 to 100 % and weighted for the travel style “Nature escape”.
What to pack in October
- Sunscreen
- Warm jacket
- Hat, scarf & gloves
- Rain jacket or umbrella
Compare two months in El Chaltén
Pick two months to see how the weather differs. A tick marks the clearly better value; for temperatures it depends on your plans.
February has the better holiday weather in El Chaltén: score 50 against 17. In February, days are 6 °C warmer than in October. The sun shines an hour longer a day in February.
| Month | October | February |
|---|---|---|
| Holiday weather score | 17 | 50better |
| Daytime high | 7° | 13° |
| Night-time low | 1° | 7° |
| Sunshine | 6.7 h | 7.9 hbetter |
| Rainy days | 16 | 16 |
| Rainfall | 126 mm | 135 mm |
Based on the climate averages 1996–2025.
El Chaltén month by month
The typical weather for every month at a glance.
43January13° · 8.3 h
In January, El Chaltén is cool: daytime highs average 13 °C, and nights cool down to about 7 °C. The sun shines for around 8.3 hours a day. It rains often – on about 20 days, adding up to 151 mm. All in all, January is a so-so month for a holiday in El Chaltén.
El Chaltén in January50February13° · 7.9 h
In February, El Chaltén is cool: daytime highs average 13 °C, and nights cool down to about 7 °C. The sun shines for around 7.9 hours a day. It rains often – on about 16 days, adding up to 135 mm. All in all, February is a so-so month for a holiday in El Chaltén – and yet one of the best months here.
El Chaltén in February32March12° · 6.3 h
In March, El Chaltén is cool: daytime highs average 12 °C, and nights cool down to about 6 °C. Expect around 6.3 hours of sunshine a day. It rains often – on about 19 days, adding up to 162 mm. All in all, March is not an ideal month for a holiday in El Chaltén.
El Chaltén in March16April10° · 5.3 h
In April, El Chaltén is cold: daytime highs average 10 °C, and nights cool down to about 3 °C. Expect around 5.3 hours of sunshine a day. It rains often – on about 18 days, adding up to 169 mm. Snow falls on about 5 days. All in all, April is not an ideal month for a holiday in El Chaltén.
El Chaltén in April5May7° · 3.8 h
In May, El Chaltén is cold: daytime highs average 7 °C, and nights cool down to about 1 °C. The sun is scarce, with only about 3.8 hours a day. It rains often – on about 17 days, adding up to 148 mm. Snow falls on about 8 days. All in all, May is not an ideal month for a holiday in El Chaltén.
El Chaltén in May4June5° · 3.3 h
In June, El Chaltén is cold: daytime highs average 5 °C, and nights often drop below freezing (−1 °C). The sun is scarce, with only about 3.3 hours a day. It rains often – on about 17 days, adding up to 122 mm. Snow falls on about 12 days. All in all, June is not an ideal month for a holiday in El Chaltén.
El Chaltén in June6July4° · 3.5 h
In July, El Chaltén is cold: daytime highs average 4 °C, and nights often drop below freezing (−2 °C). The sun is scarce, with only about 3.5 hours a day. It rains often – on about 16 days, adding up to 129 mm. Snow falls on about 12 days. All in all, July is not an ideal month for a holiday in El Chaltén.
El Chaltén in July9August5° · 4.6 h
In August, El Chaltén is cold: daytime highs average 5 °C, and nights often drop below freezing (−2 °C). Expect around 4.6 hours of sunshine a day. It rains often – on about 16 days, adding up to 116 mm. Snow falls on about 12 days. All in all, August is not an ideal month for a holiday in El Chaltén.
El Chaltén in August19September6° · 6.0 h
In September, El Chaltén is cold: daytime highs average 6 °C, and nights often drop below freezing (−1 °C). Expect around 6.0 hours of sunshine a day. Rain is frequent, with about 14 rainy days and 95 mm in total. Snow falls on about 9 days. All in all, September is not an ideal month for a holiday in El Chaltén.
El Chaltén in September17October7° · 6.7 h
In October, El Chaltén is cold: daytime highs average 7 °C, and nights cool down to about 1 °C. The sun shines for around 6.7 hours a day. It rains often – on about 16 days, adding up to 126 mm. Snow falls on about 8 days. All in all, October is not an ideal month for a holiday in El Chaltén.
El Chaltén in October25November9° · 8.1 h
In November, El Chaltén is cold: daytime highs average 9 °C, and nights cool down to about 3 °C. The sun shines for around 8.1 hours a day. It rains often – on about 17 days, adding up to 122 mm. Snow falls on about 4 days. All in all, November is not an ideal month for a holiday in El Chaltén.
El Chaltén in November32December11° · 7.9 h
In December, El Chaltén is cool: daytime highs average 11 °C, and nights cool down to about 5 °C. The sun shines for around 7.9 hours a day. It rains often – on about 19 days, adding up to 147 mm. All in all, December is not an ideal month for a holiday in El Chaltén.
El Chaltén in DecemberClimate in detail
Climate through the year
Long-term monthly averages. Tap a month to see its details.
Nights and sleep in El Chaltén
How warm the nights get in each month, from the mean night-time low. Tap a month for details.
- Frost below 0°
- Cold 0–8°
ColdOctober: nights around 1°. The room should be heated.
The coolest nights are in July (−2°), the warmest in February (7°). Nights fall below 8 °C on average all year round, so the room should be heated.
Temperatures through the year
Average daytime high, night-time low and sea temperature per month.
| Month | Score | Day | Night | Sun | Rain days | Rain mm |
|---|---|---|---|---|---|---|
| JanuaryJan | 43 | 13° | 7° | 8.3 h | 20 | 151 |
| FebruaryFeb | 50 | 13° | 7° | 7.9 h | 16 | 135 |
| MarchMar | 32 | 12° | 6° | 6.3 h | 19 | 162 |
| AprilApr | 16 | 10° | 3° | 5.3 h | 18 | 169 |
| MayMay | 5 | 7° | 1° | 3.8 h | 17 | 148 |
| JuneJun | 4 | 5° | −1° | 3.3 h | 17 | 122 |
| JulyJul | 6 | 4° | −2° | 3.5 h | 16 | 129 |
| AugustAug | 9 | 5° | −2° | 4.6 h | 16 | 116 |
| SeptemberSep | 19 | 6° | −1° | 6.0 h | 14 | 95 |
| OctoberOct | 17 | 7° | 1° | 6.7 h | 16 | 126 |
| NovemberNov | 25 | 9° | 3° | 8.1 h | 17 | 122 |
| DecemberDec | 32 | 11° | 5° | 7.9 h | 19 | 147 |
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
49.33° S, 72.89° W · 401 m · America/Argentina/Rio_Gallegos
Sunshine hours in El Chaltén
Average hours of bright sunshine per day, next to the length of the day. Tap a month to select it.
In October, the sun shines for about 6.7 of 13.5 hours of daylight in El Chaltén, 50 % 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.
Rain in El Chaltén: 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.
In October, El Chaltén has about 16 rainy days with 126 mm of rain in total.
UV index in El Chaltén
How strong the sun is at noon, month by month, and how quickly unprotected skin burns.
- Clear-sky UV in October
- 5 · moderateAround midday seek shade; use sunscreen, a hat and sunglasses.
The sun is strongest in December (UV 8).
Minutes until sunburn in October
- Very fair skin
- about 25 min
- Fair skin
- about 30 min
- Light brown skin
- about 45 min
- Olive skin
- about 55 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 and clouds in El Chaltén
How breezy and how cloudy El Chaltén 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.
In October, the wind in El Chaltén typically peaks at 19 km/h during the day: Beaufort 3, gentle breeze.
Clouds
Average share of the sky covered by cloud, day and night.
In October, cloud covers on average 66 % of the sky over El Chaltén: mostly cloudy, with about 6.7 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.
Snow in El Chaltén
When El Chaltén 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 calendar
- hardly any
- possible
- likely
- very likely
In October, El Chaltén has about 8 days with at least 1 cm of fresh snow, 36 cm in total. The chance of seeing snow during a week's stay is 56 out of 100: likely.
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 El Chaltén
Weather for your travel dates
Pick your arrival and length of stay, and we sum up the weather to expect.
El Chaltén 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.
El Chaltén has its best school-holiday weather during the Christmas holidays (score 38) and its weakest during May half-term (score 5).
- 21
Easter holidays
Mar – Apr
Poor
- 10 °C by day
- 5.6 h of sun a day
- 18 rainy days a month
Keep in mind: Frequent rain, Snow
- 5
May half-term
May – Jun
Poor
- 6 °C by day
- 3.7 h of sun a day
- 17 rainy days a month
Keep in mind: Frequent rain, Snow
- 8
Summer holidays
Jul – Aug
Poor
- 4 °C by day
- 4.2 h of sun a day
- 16 rainy days a month
Keep in mind: Frequent rain, Snow
- 17
October half-term
Oct
Poor
- 7 °C by day
- 6.7 h of sun a day
- 16 rainy days a month
Keep in mind: Frequent rain, Snow
- 38
Christmas holidays
Dec – Jan
PoorBest holidays
- 12 °C by day
- 8.1 h of sun a day
- 19 rainy days a month
Keep in mind: Frequent rain
Based on the climate averages 1996–2025.
Getting there
Flying from
- Nonstop flight
- about 16 h 20 min
- Distance
- 13,130 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.
Compare & alternatives
El Chaltén compared
Put El Chaltén side by side with another destination.
El Chaltén vs El Calafate
In October El Calafate has the better holiday weather (score 65 vs 17). During the day El Calafate is 7 °C warmer than El Chaltén. El Calafate gets one more hour of sunshine a day.
| in October | El Chaltén | El Calafate |
|---|---|---|
| Holiday weather score | 17 | 65 |
| Daytime high | 7° | 14° |
| Sunshine | 7 h | 8 h |
| Rainy days | 16 | 10 |
| Best time | Feb | Nov – Mar |
Through the year
Argentina in October: the best places
In October, El Chaltén ranks 23 of 24 destinations in this country.
- Neuquén23°97
- 2Comodoro Rivadavia19°9°96
- 3Puerto San Julián17°7°92
- 4Mendoza24°89
- 5Bahía Blanca23°88
- 6Córdoba27°87
- 7La Plata21°83
- 8Buenos Aires21°19°83
- 23El ChalténThis page7°17
Near El Chaltén
Other destinations close by.
Places with a climate like El Chaltén
Destinations whose weather through the year is closest to El Chaltén's – good alternatives.
Frequently asked questions about El Chaltén
When is the best time to visit El Chaltén?
The best time to visit El Chaltén is in February. That is when the holiday weather score, which combines temperature, sea, sunshine and rain, is highest.
What is the warmest month in El Chaltén?
February is the warmest month, with average highs of 13 °C and nights around 7 °C. July is the coolest month at 4 °C.
When does it rain most in El Chaltén?
The wettest month is April with 169 mm of precipitation. The driest month is September with 95 mm.
How many hours of sunshine does El Chaltén get?
El Chaltén gets around 2,180 hours of sunshine a year. The sunniest month is January with 8.3 hours a day; in June there are 3.3 hours a day.
What time zone is El Chaltén in?
El Chaltén is on UTC−3 all year.
How long is the flight from London to El Chaltén?
A nonstop flight from London to El Chaltén takes about 16 h 20 min, for a straight-line distance of about 13,130 km. Most routes need a change of planes, which adds time.
Which school holidays are best for El Chaltén?
El Chaltén has its best school-holiday weather during the Christmas holidays (score 38) and its weakest during May half-term (score 5). Holiday ratings (0–100): Easter holidays 21, May half-term 5, summer holidays 8, October half-term 17, Christmas holidays 38.