Things to Do in Costa Rica in December
December weather, activities, events & insider tips
December Weather in Costa Rica
Is December Right for You?
Advantages
- December marks the start of dry season on the Pacific coast - Guanacaste beaches finally see blue skies after six months of daily rain, with water clarity for snorkeling hitting 20 m (66 ft) visibility
- End-of-year Tico vacation crowds haven't arrived yet - Manuel Antonio's sloths are still visible from the main trail without tour groups blocking your view
- Coffee harvest is in full swing in the Central Valley - you can smell the beans fermenting at farms like Doka Estate, something you miss entirely if you visit March through October
- Humpback whales are still migrating along the southern Pacific coast - Drake Bay boats regularly spot mothers with calves through mid-December
Considerations
- Caribbean side is still getting hammered by rain - Tortuguero's canals run brown and choppy, with 200 mm (7.9 inches) of rain making wildlife spotting frustrating
- Prices jump December 15th when North American holiday crowds arrive - the same Santa Teresa bungalow that sits empty first week of December becomes impossible to book by the 20th
- Mountain roads can be treacherous after afternoon storms - the route to Monteverde Cloud Forest turns into axle-deep mud when those 30-minute downpours hit at 2 PM
Best Activities in December
Pacific Coast Whale Watching Tours
Southern Pacific humpbacks peak in early December before the northern migration starts. Drake Bay boats leave at 7 AM when seas are calmest, and you're almost guaranteed mother-calf pairs breaching within 200 m (656 ft) of your boat. The dry season weather means you won't get soaked by rain during the 3-hour tours.
Coffee Farm Tours in Central Valley
December is harvest season - the red coffee cherries are literally falling off the bushes. At working farms above San José, you'll taste beans processed the same day, roasted while you watch, then brewed using methods from 19th-century Costa Rican kitchens. The cooler mountain temperatures (18°C/64°F) make walking the 400 m (1,312 ft) elevation trails pleasant.
Monteverde Cloud Forest Night Walks
December's clearer skies mean the forest floor dries enough for 2-hour nocturnal walks without slipping. The 8°C (46°F) temperature drop after sunset makes kinkajous and tarantulas more active, and you'll hear the distinctive 'bonk-bonk' call of resplendent quetzals settling into roosts.
Manuel Antonio Beach and Wildlife Combination
December timing is everything here - early morning (6-8 AM) before tour buses arrive, you have Playa Manuel Antonio's white sand to yourself while howler monkeys crash through almond trees above. The Pacific water hits 28°C (82°F) making swimming comfortable, and afternoon showers clear by 4 PM for perfect sunset viewing.
Arenal Volcano Hiking Trails
December marks the transition from rainy to dry season - morning hikes start at 5:30 AM when Arenal's peak is visible against blue skies. The 1968 Trail's lava rocks are finally dry enough to climb without sliding, and thermal pools like Tabacon maintain 38°C (100°F) even when air temperature drops to 24°C (75°F) at sunset.
San José Central Market Food Tours
December mornings at Mercado Central are perfect for trying seasonal foods - tamales wrapped in banana leaves for Christmas, and chicha (fermented corn drink) that only appears this month. The market stays dry inside during afternoon storms, and vendors are generous with samples when tourist numbers are still manageable.
December Events & Festivals
Festival de la Luz
San José's Christmas light parade happens the second Saturday of December - imagine Disney-level floats crawling down Paseo Colón while 1 million Ticos line the streets eating churros and drinking agua dulce. The 6 PM start means you'll be walking with families in San Pedro Mall beforehand, then watching fireworks from the National Museum steps.
Tope Nacional de Caballos
Costa Rica's famous horse parade fills San José's main streets with 3,000 riders in traditional sabanero (cowboy) gear. The clip-clop of hooves on asphalt echoes between buildings while riders show off their prize horses - it's the one day locals wear their best leather boots and the smell of horse sweat mixes with street food smoke.
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