San Martín de los Andes weather in July
July in San Martín de los Andes: cold, soaked, with clean air — fine if you can take 15 rainy days.
Updated September 2026 · climate normals from ERA5 reanalysis
#2 of 12 months in San Martín de los Andes · #714 of 1413 destinations to visit in July · comfort 79/100 (tier B)
- Days
- 7°C
- Nights
- 2°C
- Wet days
- 15
- Sun
- 6.4 h
- Humidity
- 87%
- Daylight
- 10 h

Traveller notes on San Martín de los Andes in July
July is high season at Chapelco and the month the Argentina forum names first, though it adds that August skis just as well for better rates. The risk sits earlier: regulars say planning a ski trip before late July or early August has been genuinely risky, and that from mid to late August you start getting spring conditions - so July is the narrow middle. The snow itself they describe as good but inclined to ice, with little powder, and the base higher than you might expect thanks to the cable car. The views over Lacar and the Lanin volcano are the compensation. The record: 6.7C days that feel like 4C, 1.7C nights, 102.4cm of snow, 15.2 precipitation days and 6.4 hours of sun.
Other months in San Martín de los Andes
Regulars are specific late June counts as a better bet than May if you actually want snow on the ground, with real snowfall episodes already landing by early-to-mid June and roughly 7 snow days typical for the month. Our row backs that cold, genuinely wet read, 7.2C reading as a freezing 4C, over 2.5C nights feeling -1C, with a substantial 207.1mm of precipitation across 16.6 days and 100.4cm of snowfall. Regulars are consistent this counts as the quieter lead-in to the July-August winter-holiday peak, shorter daylight hours and harsher weather but genuinely fewer crowds than the school-holiday rush that follows. The record: 5.9 hours of sun, humidity 88.3 percent and AQI 24.
Patagonia forum threads confirm February sits squarely in the Southern Hemisphere summer season here, and it's genuinely one of the busiest months as vacationers fill the town before things quiet down again outside peak season. San Martín de los Andes was described by regulars as generally having somewhat better, more settled weather than nearby Bariloche, with a lower chance of rain than in the surrounding months. The overall read from posters familiar with the area: this is prime lake-district hiking and outdoor season, worth booking ahead given how popular the window is.
Forum posters describe August as full winter in San Martín de los Andes, cold overall but with skiing just as good as July and often better hotel rates. Posters flag late snowfall as a real possibility even into August and September, a genuine bonus for skiers rather than a downside. Posters are consistent that on a clear, sunny winter day conditions are really nice for short walks, with the Seven Lakes circuit nearby offering plenty of scenic options between ski days. Posters generally recommend coming prepared for cold temperatures and unpredictable weather regardless of the forecast, while still rating August a viable, budget-friendlier alternative to peak-July skiing here.
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San Martín de los Andes climate normals — July
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in San Martín de los Andes in July
How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.
Peak crowdstravelers describe it as peak season, Argentine winter recess, Winter recess in Argentina
Sourced from traveler notes: “July is high season at Chapelco and the month the Argentina forum names first,…” — TheNarrowMiddle
Peak crowdsBusyShoulder seasonQuiet
Best months for San Martín de los Andes's weather
Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).
Best weatherSan Martín de los Andes's weather peaks June–August.
Best weatherFair weatherToughest weather
What's on in San Martín de los Andes in July
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Season
Chapelco ski season
25 Jun – 30 Sep · usuallyThe hill is twenty minutes out of town and usually turns the lifts on at the start of July, holding until late September. Low snow years open the base only, and the town says so plainly.
- Holiday
Argentine winter recess
8 Jul – 2 Aug · usuallySchool holidaysCrowdedBook earlyThe school break puts the whole country on the mountain for three weeks and this is the busiest, dearest stretch of the year in town. Ski passes and cabins go months ahead. Source ↗
- Season
Snow season
Ski seasonAbout 102 cm of snow falls in the month.
from the climate normals
Nearby, and something's on
Within 300 km of San Martín de los Andes — a day trip or a short hop — with something on this month. Never part of the comfort score.
Where is San Martín de los Andes?
San Martín de los Andes in July — FAQ
- Is July a good time to visit San Martín de los Andes?
- July in San Martín de los Andes: cold, soaked, with clean air — fine if you can take 15 rainy days. It ranks #2 of 12 months for San Martín de los Andes on SeasonMap's comfort score (79/100).
- What is the weather like in San Martín de los Andes in July?
- In July, San Martín de los Andes averages a daily high of 6.7°C and a low of 1.7°C, with about 184.5 mm of rain over roughly 15.2 rainy days.
- What is the air quality in San Martín de los Andes in July?
- San Martín de los Andes has a mean US Air Quality Index of about 26 in July.
- Does it snow in San Martín de los Andes in July?
- San Martín de los Andes sees roughly 102.4 cm of snowfall in July.
Within 300 km: San Carlos de Bariloche's Ski season around 29 Jun – 4 Oct.