Things to Do in Chile in December

December is your smartest bet for the W Trek. Snow stays off middle-elevation trails, lenga beech trees blaze in full summer green, and the park's refugio network operates at full capacity. The signature hike, roughly 4 hours each way to Mirador Las Torres, hands you the postcard view of three granite towers mirrored in the glacial lake below. On a clear December morning, light strikes those towers around 7 AM and holds steady until noon before the wind arrives. That wind is what rookies miss: Patagonian gusts regularly hit 80-100 km/h (50-62 mph) on exposed ridgelines with zero warning. It dictates the day in ways a Santiago forecast won't explain. Day hikers reach the mirador with a park entry permit only. The complete W Trek demands advance refugio booking through Conaf-registered operators. Check current choices in the booking section below.

December in San Pedro de Atacama delivers the year's best stargazing, cold enough for razor-sharp skies yet warm enough you won't freeze solid. The plateau gets less than 15 mm (0.6 inches) of rain yearly, sits at 2,400 m (7,874 ft), and on a moonless December night the Milky Way core looks impossible to anyone raised under city lights: a visible structural band, not some faint smear. Licensed observatories run nightly sessions with pro-grade telescopes, Spanish or English commentary included. Daytime brings the altiplano lagoon circuit, Lagunas Miscanti and Miñiques at 4,200-4,500 m (13,780-14,764 ft) hold shallow mineral-rich water that flares orange and pink at sunset, flamingos ignoring both altitude and cold. Acclimatization matters more than most expect: two full days at San Pedro's base elevation before tackling the high circuit prevents the headaches and nausea that cut one in five trips short.

3,700 km (2,299 miles) from Chile's coast, Rapa Nui floats alone in the South Pacific. December throws nearly 13 hours of light at you, enough to rewrite every schedule you've planned. The moai at Ahu Tongariki, 15 stone figures on their restored platform, the island's largest standing group, face east. Their December sunrise hits different than photos promise. Be there by 5:30 AM. You'll beat the tour buses, and the silence plus those basalt giants in pre-dawn light justifies every lost minute of sleep. 163 sq km (63 sq miles) of island. Over 900 moai. They're everywhere, lava fields, crater edges, coastal platforms. No corner escapes them. Rano Raraku quarry tells the real story. Nearly 400 unfinished moai still cling to the hillside. Some half-emerge from rock faces like they're fighting their way out. Better than any museum display, this is how they carved them. December traffic stays moderate. Below January and February chaos. On an island with one road loop, that difference matters.

Carménère nearly died out in France. Chile's Colchagua Valley saved it, 180 km (112 miles) south of Santiago, the grape was rediscovered in the 1990s and is now the closest thing Chilean wine has to a signature variety. December hits an interesting moment in the wine calendar: the vines are in full summer green, the grapes are swelling but still weeks from harvest (which comes in March-April), and the valley floor between Santa Cruz and the Andean foothills is easy on the eyes in a way that harvest season, total chaos with equipment and urgency, is not. The cycling routes through Colchagua are mostly flat, passing vineyard gates and roadside stalls selling empanadas de pino that taste of cumin and hard-boiled egg. Mid-week visits to the larger bodegas tend to be calmer than weekends, when Santiago day-trippers drive the tasting room traffic. Staying overnight in Santa Cruz allows you to hit quieter, less-toured vineyards in the early morning before the heat builds.

Valparaíso's 42 hills spill straight into the flat port district, stairs, funiculars, and corrugated-iron houses painted in colors so wild they look fake in photos. They're real. The ascensores are how you move between the plan and the cerros, some running since the 1880s, some restored, all creaking wood and worth every peso. Cerro Alegre and Cerro Concepción pack the city's thickest street art: murals commissioned since the early 2000s swallow entire facades, shifting from political to surrealist to maritime in a single block. Cerro Polanco and Cerro Florida carry newer pieces and thinner crowds. La Sebastiana, Pablo Neruda's house on Cerro Florida at about 200 m (656 ft) above the port, has been a public museum since 1991; climb the roof and you'll see why he picked this hill. December evenings stretch until 9 PM. Time your visit for the late-afternoon light on the harbor, you'll thank yourself.

December is when Chile's Lake District hits its stride, stretching 400 km (249 miles) from Temuco south to Puerto Montt. Volcán Villarrica towers 2,847 m (9,341 ft) above Pucón, accessible for summit climbs November through March. The 5-6 hour round trip crosses snow and volcanic ash. Certified guides provide crampons and ice axe. An active crater vents sulfurous smoke you'll smell during the final 200 m (656 ft) approach. Few places let you legally stand on an active volcano's rim. On clear days, the view spans 100 km (62 miles) across blue lakes and snow-capped cones. Lake Llanquihue near Puerto Varas spreads across 870 sq km (336 sq miles), dead calm in December for full-day kayak circuits past Frutillar's Germanic-influenced lakefront. Volcán Osorno's 2,652 m (8,701 ft) cone reflects in the water when morning light holds.