Climate guide for Perito Moreno Glacier, Argentina

Best Time to Visit
Perito Moreno Glacier

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01 · Argentina

About Perito Moreno Glacier

Perito Moreno Glacier fills a valley in Los Glaciares National Park, its blue ice wall breaking off in slabs that crash into Lake Argentino. Boardwalks face the ice on foot, boats carry visitors close to the front, and the park's other glaciers and the town of El Calafate are nearby. Day trips cross the Patagonian steppe to working estancias, with El Chaltén far to the north. The southern summer from November to March brings the mildest weather; winter is cold and quiet.

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Did you know?

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Travel Tips

01Best time & timing
January leads the year at 7.4/10, with December and November close behind — July (2.0/10) is the one to avoid without a specific reason.
02Weather & what to pack
In January plan for about 4°C; the month brings 62 mm of rain. Pack a mid-weight jacket and shoes you can walk in all day.
03Crowds & value
Crowds build in January and rates follow; November usually pairs good conditions (7.1/10) with the lowest prices of the strong months.

Things to do in Perito Moreno Glacier

Perito Moreno Glacier, Argentina. Live activities and tours from GetYourGuide, matched to this destination.

When to visit Perito Moreno Glacier: the short answer

Plan Perito Moreno Glacier for January, with December, November close behind — the stretch with the most usable temperatures and the fewest lost days to rain: January averages 4°C with 62 mm of rain and about 26 days with 6+ hours of sunshine. The months to avoid unless you have a specific reason are July, June.

Across the year Perito Moreno Glacier swings from -6°C in July to 4°C in February, a 10-degree spread, while rainfall ranges from 53 mm in November to 82 mm in March. In short, Perito Moreno Glacier is not equally good year-round — the gap between its best and worst month is 5.4 points on the same 10-point scale.

Warmest month: February (4°C). Coolest: July (-6°C). Driest: November (53 mm). Wettest: March (82 mm).

Perito Moreno Glacier month by month

January: the best month of the year in Perito Moreno Glacier

Best window · 7.4/10

Expect 4°C (39°F) in January. A good month for city streets, viewpoints and long meals; leave swimming for another season.

Budget for roughly 62 mm of rain this month — a flexible day or two helps — with about 26 days with 6+ hours of sunshine and 15.8 hours of daylight to work around it.

On our climate-comfort scale this is the top-ranked month of the year for Perito Moreno Glacier at 7.4/10 — the reference point every other month on this page is measured against.

Expect peak pricing, and this is one of the busiest months here. You are paying the year's highest rates for the year's best conditions — book early or shift a few weeks either side.

Pack a mid-weight jacket, long sleeves and shoes you can walk 15 km in, a packable rain layer, footwear you can get muddy.

February in Perito Moreno Glacier — workable with trade-offs

Trade-offs · 6.6/10

Expect 4°C (40°F) in February. A good month for city streets, viewpoints and long meals; leave swimming for another season.

Budget for roughly 65 mm of rain this month — a flexible day or two helps — with about 16 days with 6+ hours of sunshine and 14.3 hours of daylight to work around it.

That is 6.6/10 on the same scale — 4th of 12 months, versus 7.4/10 for the best month here.

Budget for peak pricing, and crowds are moderate.

Pack a mid-weight jacket, long sleeves and shoes you can walk 15 km in, a packable rain layer, footwear you can get muddy.

March in Perito Moreno Glacier: expect compromises

Hardest · 4.6/10

March averages 2°C (35°F), cold enough that sightseeing works in bursts rather than in one long day on foot.

Rainfall runs 82 mm, so plan one flexible day in three; you still get about 6 days with 6+ hours of sunshine and 12.5 hours of daylight.

It scores 4.6/10 here, 6th of 12 months, against 7.4/10 in the destination's best month.

Figure on mid-season pricing, with crowds are moderate.

Pack insulated layers, a windproof shell, gloves and boots with grip, a packable rain layer, footwear you can get muddy.

Flexible dates? January scores 2.8 points higher here — enough to change the trip.

April in Perito Moreno Glacier — the hardest end of the year

Hardest · 3.4/10

At 0°C (32°F) this is proper winter weather in April: layer up and split the day between outdoor highlights and indoor stops.

67 mm of water-equivalent precipitation makes this a snowy month at resort level; what falls stays as snow, with almost no days with 6+ hours of sunshine and 10.5 hours of daylight.

That is 3.4/10 on the same scale — 8th of 12 months, versus 7.4/10 for the best month here.

Budget for low-season pricing, and crowds are light for this destination.

Pack insulated layers, a windproof shell, gloves and boots with grip, a packable rain layer, footwear you can get muddy.

If your dates are flexible, January is materially better in Perito Moreno Glacier — 4 points higher on the same scale.

May in Perito Moreno Glacier — off-season conditions

Hardest · 2.9/10

May averages -2°C (28°F), cold enough that sightseeing works in bursts rather than in one long day on foot.

At 56 mm of water-equivalent precipitation this is a snowy month at resort level — that is snowpack, not lost days — with almost no days with 6+ hours of sunshine and 8.8 hours of daylight.

It scores 2.9/10 here, 9th of 12 months, against 7.4/10 in the destination's best month.

Plan for low-season pricing, with crowds are light for this destination.

Pack insulated layers, a windproof shell, gloves and boots with grip, a packable rain layer, footwear you can get muddy.

Flexible dates? January scores 4.5 points higher here — enough to change the trip.

June in Perito Moreno Glacier — the hardest end of the year

Hardest · 2.1/10

At -4°C (24°F) this is proper winter weather in June: layer up and split the day between outdoor highlights and indoor stops.

64 mm of water-equivalent precipitation makes this a snowy month at resort level; what falls stays as snow, with almost no days with 6+ hours of sunshine and 7.8 hours of daylight.

That is 2.1/10 on the same scale — 11th of 12 months, versus 7.4/10 for the best month here.

Expect low-season pricing, and crowds are light for this destination.

Pack insulated layers, a windproof shell, gloves and boots with grip, a packable rain layer, footwear you can get muddy.

If your dates are flexible, January is materially better in Perito Moreno Glacier — 5.3 points higher on the same scale.

July in Perito Moreno Glacier — the hardest end of the year

Hardest · 2/10

July sits at -6°C (22°F), firmly in deep-winter territory. Plan compact outdoor blocks with warm reset points between them rather than full days outside.

69 mm of water-equivalent precipitation makes this a snowy month at resort level; what falls stays as snow, with almost no days with 6+ hours of sunshine and 8.2 hours of daylight.

That is 2/10 on the same scale — 12th of 12 months, versus 7.4/10 for the best month here.

Budget for low-season pricing, and crowds are light for this destination.

Pack insulated layers, a windproof shell, gloves and boots with grip, a packable rain layer, footwear you can get muddy.

If your dates are flexible, January is materially better in Perito Moreno Glacier — 5.4 points higher on the same scale.

August in Perito Moreno Glacier — the hardest end of the year

Hardest · 2.7/10

August averages -4°C (25°F), cold enough that sightseeing works in bursts rather than in one long day on foot.

At 62 mm of water-equivalent precipitation this is a snowy month at resort level — that is snowpack, not lost days — with almost no days with 6+ hours of sunshine and 9.7 hours of daylight.

It scores 2.7/10 here, 10th of 12 months, against 7.4/10 in the destination's best month.

Figure on low-season pricing, with crowds are moderate.

Pack insulated layers, a windproof shell, gloves and boots with grip, a packable rain layer, footwear you can get muddy.

Flexible dates? January scores 4.7 points higher here — enough to change the trip.

September in Perito Moreno Glacier — the hardest end of the year

Hardest · 3.8/10

September averages -3°C (27°F), cold enough that sightseeing works in bursts rather than in one long day on foot.

At 64 mm of water-equivalent precipitation this is a snowy month at resort level — that is snowpack, not lost days — with about 5 days with 6+ hours of sunshine and 11.6 hours of daylight.

It scores 3.8/10 here, 7th of 12 months, against 7.4/10 in the destination's best month.

Figure on low-season pricing, with crowds are light for this destination.

Pack insulated layers, a windproof shell, gloves and boots with grip, a packable rain layer, footwear you can get muddy.

Flexible dates? January scores 3.6 points higher here — enough to change the trip.

October in Perito Moreno Glacier — middling scores, decent value

Trade-offs · 5.5/10

At 0°C (32°F) this is proper winter weather in October: layer up and split the day between outdoor highlights and indoor stops.

65 mm of water-equivalent precipitation makes this a snowy month at resort level; what falls stays as snow, with about 13 days with 6+ hours of sunshine and 13.6 hours of daylight.

That is 5.5/10 on the same scale — 5th of 12 months, versus 7.4/10 for the best month here.

Budget for mid-season pricing, and crowds are moderate.

Pack insulated layers, a windproof shell, gloves and boots with grip, a packable rain layer, footwear you can get muddy.

If your dates are flexible, January is materially better in Perito Moreno Glacier — 1.9 points higher on the same scale.

November in Perito Moreno Glacier: strong conditions, 3rd of 12

Good · 7.1/10

At 2°C (35°F) this is proper winter weather in November: layer up and split the day between outdoor highlights and indoor stops.

Budget for roughly 53 mm of rain this month — a flexible day or two helps — with about 23 days with 6+ hours of sunshine and 15.3 hours of daylight to work around it.

That is 7.1/10 on the same scale — 3rd of 12 months, versus 7.4/10 for the best month here.

Budget for peak pricing, and this is one of the busiest months here. You are paying the year's highest rates for the year's best conditions — book early or shift a few weeks either side.

Pack insulated layers, a windproof shell, gloves and boots with grip, a packable rain layer, footwear you can get muddy.

December in Perito Moreno Glacier — reliably good (2nd best month)

Good · 7.2/10

December averages 3°C (37°F), cold enough that sightseeing works in bursts rather than in one long day on foot.

Rainfall runs 61 mm, so plan one flexible day in three; you still get about 29 days with 6+ hours of sunshine and 16.2 hours of daylight.

It scores 7.2/10 here, 2nd of 12 months, against 7.4/10 in the destination's best month.

Plan for peak pricing, with this is one of the busiest months here. You are paying the year's highest rates for the year's best conditions — book early or shift a few weeks either side.

Pack insulated layers, a windproof shell, gloves and boots with grip, a packable rain layer, footwear you can get muddy.

FAQ

Frequently asked

When is the best time to visit Perito Moreno Glacier, Argentina?
In Ideal Weather mode, the best months to visit Perito Moreno Glacier are January, December, November. January is the single peak month with an Ideal Weather score of 7.4/10 based on temperature, rainfall, humidity, daylight and days with 6+ hours of sunshine.
What is the weather like in Perito Moreno Glacier year-round?
Perito Moreno Glacier has a climate profile suited to nature and wildlife travel. Average monthly temperatures range from -6°C in July to 4°C in February, with Ideal Weather scores between 2.0 and 7.4 out of 10.
Which months should I avoid in Perito Moreno Glacier?
The lowest Ideal Weather-scoring months in Perito Moreno Glacier are July (2.0/10), June (2.1/10), August (2.7/10). These months typically combine less comfortable temperatures, higher rainfall or fewer days with 6+ hours of sunshine.
When is the rainy season in Perito Moreno Glacier?
March is the wettest month in Perito Moreno Glacier, averaging about 82 mm of rainfall. November is the driest, at roughly 53 mm.
Which is the sunniest month in Perito Moreno Glacier?
December sees the most sun in Perito Moreno Glacier, with about 29 days with 6+ hours of sunshine on average - ideal for outdoor plans.
Is Perito Moreno Glacier a good destination for nature and wildlife travel?
Perito Moreno Glacier is well suited to nature and wildlife travel. Its highest Ideal Weather window (January, December, November) aligns with the conditions travelers usually look for in this style of trip.
How is the bestime.to score for Perito Moreno Glacier calculated?
Each month receives an Ideal Weather score from 0-10 using ERA5 climate normals for Perito Moreno Glacier: temperature comfort, precipitation, humidity, daylight hours, and days with 6+ hours of sunshine - weighted for nature and wildlife travel.

Climate data: Open-Meteo ERA5 historical archive, the five most recent complete years (2021–2025). Scores are monthly averages for that window, not forecasts, and short-window precipitation can differ from longer-term normals. “Sunny days” count days with at least 6 hours of measured sunshine — they are not dry days.

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