Seasons

Best Time to Visit Southern Patagonia: Month by Month

Updated September 2026 · 8 min read

The usual answer is summer, from December through March. That is a useful starting point, but it is not the full answer.

The best month depends on where you are going and what you want to do. The W Trek, O Circuit, El Chaltén trails, glacier boat trips and winter day trips do not follow exactly the same operating calendar.

We plan trips from Puerto Natales across Chilean and Argentine Patagonia. This guide begins with Torres del Paine, then explains how the season affects the other destinations that can be combined with it. Jump to the month-by-month guide.

For multi-day trekking in Torres del Paine, most travelers choose November through March, because more services operate and the days are longer.

The W Trek may operate outside that period, depending on accommodation, transport and current trail regulations. The O Circuit has a shorter season, and its opening or closure is confirmed by CONAF according to trail and weather conditions.

No month guarantees calm conditions, open trails or a specific wildlife sighting.

Puerto Natales sits at 51 degrees south. That means enormous swings in daylight through the year, and it is daylight, more than temperature, that decides what you can do in a day.

Month	Season	Daylight	What runs	Demand	Our take
October	Spring	About 14 h	W Trek services begin operating more regularly. Confirm accommodation, transport and current trail requirements.	Low	Quiet trails, unsettled conditions.
November	Spring	About 16 h	The O Circuit may reopen after official confirmation.	Medium	Long days, spring vegetation and increasing demand.
December	Summer	Up to 17 h	Most services operating	High	Peak light. Refugios sell out first for these dates.
January	Summer	About 17 h	Most services operating	Highest	One of the busiest months, particularly on the most popular routes and at Base Torres.
February	Summer	About 15 h	Most services operating	High	Still summer, and usually a little calmer after the Chilean holidays.
March	Late summer	About 13 h	Most services operating	Medium	Fewer visitors than peak summer and the first signs of autumn. The O Circuit can close earlier if conditions deteriorate.
April	Autumn	About 11 h	W Trek until the refugios close; day trips	Low	Autumn colors may appear during April, although their timing and intensity vary with the season.
May	Autumn	About 9 h	Day trips; Relax	Very low	Multi-day trekking services are limited or unavailable. Confirm the current W Trek operating status before planning around it.
June	Winter	About 8 h	Day trips; winter tours	Very low	The W and O circuits are normally unavailable or heavily restricted. Some day hikes may operate under winter rules and with specialized equipment or guides.
July	Winter	About 8 h	Day trips; winter tours	Very low	The coldest month, with the shortest days of the year.
August	Winter	About 10 h	Day trips; winter tours	Very low	Winter light with longer days returning.
September	Early spring	About 12 h	Day trips; Relax	Low	W Trek access and services begin returning, but snow, ice and additional equipment requirements may remain. The O Circuit stays closed.

Daylight figures are approximate and correspond to Puerto Natales. Month descriptions are general: current CONAF notices and your confirmed itinerary take priority.

Daylight figures are approximate for Puerto Natales. Hours on the trail are estimates and may vary.

Our preferred period for the W Trek is late February through March, when peak-summer demand usually begins easing and daylight remains generous. It is a preference, not a weather guarantee. Patagonia can bring wind, rain, cold or temporary trail restrictions at any point in the season.

December through February dates can sell out months in advance. Availability depends on the exact night, accommodation type and route, so check as soon as your dates are reasonably firm. See the Guided W Trek and the Self-Guided W Trek.

The O Circuit has a shorter operating season, generally between November and March. Its opening and closing dates depend on official confirmation, accommodation operations and trail safety. Snow, ice or severe weather can delay the opening or end the season early.

The camps of the north side, Serón, Dickson and Los Perros, operate only within that window, and the John Gardner Pass is the day with the least margin. Mid-summer gives the most daylight for it. See the Guided and Self-Guided O Circuit.

Torres del Paine can be visited throughout the year, but available routes, boat trips, accommodation and tour departures change by season. Confirm the exact service before arranging flights around it. If you want the landscape without eight-hour days, the Patagonia Relax Experience and the Torres del Paine Classic Tour are built that way.

The calendar above is for Torres del Paine. The rest of southern Patagonia does not follow it exactly, and each destination has its own operators and its own schedules.

Puerto Natales works all year as the base: hotels, the fjord boat trip and the estancias operate on their own seasonal calendars, and each one is confirmed separately.

El Calafate and the Perito Moreno Glacier, in Argentina, are reachable all year, and the glacier boardwalks do not depend on a trekking season. Boat trips and ice activities have their own schedules.

El Chaltén is a trekking village: its trails and its services concentrate in the warmer months, and the town becomes very quiet outside them.

Ushuaia has two distinct seasons, one for boat trips and trekking and one for snow, with different operators in each.

We combine Chile and Argentina in the Southern Patagonia Grand Journey. For any of these destinations, tell us your dates and we confirm what actually operates then, rather than working from a general calendar.

• Wind is a major part of summer weather, especially on exposed sections, at the pass and on the catamaran. Pack for wind, rain and cold rather than preparing for only one condition.
• Refugio beds and specific camping sectors are limited. Peak-season dates can disappear months in advance, while some shoulder-season dates remain available closer to departure. Check the complete route before purchasing non-changeable travel arrangements. Every night on our programs is booked before you confirm.
• The Puerto Natales airport is seasonal, and in early 2027 it is partial. Flights to Natales run mainly from November to March. Between January and March 2027, runway works concentrate commercial operations on a reduced weekly schedule. Punta Arenas has year-round flight options and regular bus connections to Puerto Natales: the scheduled city-to-city journey is approximately 3 hours and 15 minutes, although road conditions and stops can affect the final time. Read the airport update.

• Trekking, first time, want the classic: February or March.
• Trekking, want the fewest people: November, or the last two weeks of March.
• The O Circuit: December to February for the pass.
• Photography and colors: April, first half.
• Snow and silence, no long hikes: June to August.
• Only dates you have are January: come anyway, book now.

Tell us your dates and what you want from the trip, and we will tell you honestly whether the month fits and what still has availability. It is what we do all day from Puerto Natales.