Costa Rica is one of the world's premier ecotourism destinations, packed with active volcanoes, cloud forests, and wildlife-rich coastlines.
The best time to visit Costa Rica comes down to two seasons. The Pacific dry season is sunny. The green season is quieter, and the waterfalls roar.
Climate data from the Instituto Meteorológico Nacional de Costa Rica and the Costa Rica Tourism Board show two clear seasons. The dry season (temporada seca) runs from December through April. The rainy or green season (temporada verde) runs from May through November.
However, Costa Rica's jagged mountain backbone creates distinct regional microclimates. The Pacific coast and Central Valley get heavy afternoon showers in September and October, yet those same months are the driest and sunniest on the Caribbean coast around Puerto Viejo and Tortuguero.
You can map your personal itinerary using our custom trip planner. Below is an honest season-by-season guide.
Best time to visit Costa Rica, season by season
Want beach sun and easy driving in Guanacaste or the Nicoya Peninsula? Go from December through April. You'll get clear blue skies, dry hiking trails around Arenal Volcano, and calm coastal waters.
Don't mind a short afternoon shower? May through August brings lower rates, fewer tourists and lush green hills. It's often when wildlife is most active, and you won't encounter packed resort pools.
The table below breaks down monthly weather conditions, regional rainfall, wildlife activity, and travel demand across Costa Rica:
| Month & period | Pacific coast weather | Caribbean coast weather | Wildlife events & travel demand |
|---|---|---|---|
| Jan (Dry Season) | 31°C (88°F), dry & sunny | 28°C (82°F), occasional rain | Peak holiday tourism; high lodge rates |
| Feb (Peak Dry) | 32°C (90°F), clear skies | 29°C (84°F), drier spell | Excellent hiking in Arenal; high demand |
| Mar (Peak Dry) | 33°C (91°F), hot & arid | 30°C (86°F), moderate rain | Spring break rush; early booking needed |
| Apr (Dry to Wet) | 33°C (91°F), late rains start | 30°C (86°F), humid breezes | Easter week (Semana Santa) peaks; rates drop after |
| May (Green Season) | 30°C (86°F), afternoon showers | 30°C (86°F), tropical rains | Forest greens up; great value lodging |
| Jun (Green Season) | 29°C (84°F), sunny mornings | 29°C (84°F), afternoon showers | Sea turtles begin nesting in Tortuguero |
| Jul (Little Summer) | 30°C (86°F), mid-year dry break | 29°C (84°F), wetter weeks | Mid-year school holiday influx; good surfing |
| Aug (Green Season) | 29°C (84°F), afternoon rain | 29°C (84°F), humid & sunny | Southern humpback whales arrive in Ballena |
| Sep (Caribbean Dry) | 28°C (82°F), heavy Pacific rain | 31°C (88°F), sunniest month | Best month for Caribbean beaches & diving |
| Oct (Peak Rain) | 27°C (81°F), wettest month | 31°C (88°F), sunny & calm | Pacific dirt roads muddy; low season bargains |
| Nov (Transition) | 28°C (82°F), rains taper off | 29°C (84°F), passing storms | Landscape lush; prices low before Thanksgiving |
| Dec (Holiday Rush) | 30°C (86°F), dry winds begin | 28°C (82°F), occasional storms | Tourist rush starts mid-month; rates peak |
Dry season (December to April) for sunshine and easy travel
The dry season is Costa Rica's peak travel period. From late December through April, the Pacific northwest (Guanacaste, Tamarindo, and the Papagayo Peninsula) receives virtually zero rainfall, earning it the nickname "dry gold."
December and January: The festive kickoff
December marks the transition into sunny weather. Strong, refreshing trade winds known as vientos navideños (Christmas winds) sweep across northern Costa Rica, keeping temperatures comfortable in San Jose and Guanacaste. Holiday travelers flock to beach towns, pushing hotel rates to peak levels. If you plan to visit over Christmas, New Year, or the first two weeks of January, reserve rental vehicles and boutique eco-lodges four to six months ahead.
February to April: Optimal hiking and sunny beaches
February and March are widely considered the easiest months for first-time visitors. Hiking trails in Arenal Volcano National Park and Manuel Antonio National Park are dry and clear of mud. Wildlife viewing is straightforward, as animals congregate around diminishing water sources, making monkeys, coatis, and iguanas easier to spot.
April brings hot weather, with temperatures in Guanacaste regularly exceeding 34°C (93°F). Easter week (Semana Santa) is the busiest local holiday of the year. Banks and offices close, and Costa Ricans head for the Pacific beaches.
The green season (May to August) for lush forests and wildlife
Far from being a travel write-off, Costa Rica's green season is favored by eco-travelers and photographers. Rain usually follows a pattern: sunny mornings, then heavy tropical showers for an hour or two in the late afternoon.
May and June: The forest awakens
In May, the first seasonal rains revitalize the countryside. Rivers swell, feeding impressive waterfalls like La Fortuna and Rio Celeste. Hotel prices drop by 20% to 35% compared to February rates, and national park boardwalks are peaceful. In Tortuguero National Park on the northern Caribbean coast, endangered green sea turtles begin arriving on the beaches to dig nests and lay eggs.
July and August: The "veranillo" and whale migrations
July features a well-known weather phenomenon called the veranillo (little summer). For two to three weeks in July or early August, Pacific rainfall drops off significantly, giving travelers sunny skies and dry afternoons.
August is prime time along the southern Pacific coast. Humpbacks from the Southern Hemisphere swim thousands of miles to Marino Ballena National Park near Uvita.
They come to mate and raise their calves. It's quite a sight. Snorkeling and boat tours during this window offer remarkable whale-watching opportunities.
September and October: the Caribbean secret
September and October represent the wettest period for the Pacific side of the country. Swollen rivers can wash out rural bridges, and mud makes dirt roads on the Osa Peninsula impassable without a heavy-duty 4x4. Some boutique eco-lodges in Corcovado close down for annual maintenance during October.
However, the Caribbean coast flips the script completely. While the Pacific gets drenched, the Caribbean slope experiences its driest, sunniest, and calmest weather of the year.
Towns like Puerto Viejo de Talamanca, Cahuita, and Manzanillo enjoy flat seas, crystal-clear water for coral reef snorkeling, and warm sunshine. September and October are also peak months for observing nesting green sea turtles and hatching baby turtles in Tortuguero.
November, the green-to-dry changeover
November is an underrated shoulder month. Pacific rains begin tapering off, especially during the second half of the month. Forests and hillsides look fresh and intensely green, while waterfalls flow at peak volume.
Because peak holiday pricing doesn't take effect until mid-December, November travelers can secure excellent discounts on rainforest resorts and private wildlife guides. It's a great month for rafting the Class III and IV rapids on the Pacuare River. You won't face the dry season crowds, and it's easy to book excursions on short notice.
Region-by-region seasonal breakdown
To pick your travel dates accurately, align your schedule with Costa Rica's geographic zones:
- North Pacific (Guanacaste & Nicoya): The driest zone in Costa Rica. It's ideal from December to April for sun-seekers, surfers, and beach resorts. May to July brings brief afternoon showers that turn dry brown hillsides into green savannahs.
- Central Pacific (Manuel Antonio & Jacó): Balances warm beach weather with rainforest greenery. It's excellent from December to August, though you'll want to avoid September and October due to heavy Pacific downpours.
- South Pacific & Osa Peninsula (Corcovado & Drake Bay): High-density rainforest and incredible biodiversity. It's best visited January through April, or during August for humpback whale watching. You'll find October is exceptionally wet, so don't attempt rural river crossings then.
- Central Highlands (Arenal & Monteverde): Monteverde Cloud Forest stays cool and misty year-round. Arenal experiences mixed weather, with clear volcano views most common between February and April.
- Caribbean Coast (Tortuguero & Puerto Viejo): Runs on its own schedule. February, March, September, and October offer the sunniest and calmest coastal conditions, so you'll love it when the Pacific is rainy.
Practical tips for choosing your Costa Rica travel dates
- Rent the right vehicle: If traveling during the green season (May to November) or heading to Monteverde or the Osa Peninsula, always book a high-clearance 4WD vehicle. Dirt roads develop ruts after rain, so you won't want to get stuck in a compact car.
- Pack quick-drying clothing: Cotton holds moisture in tropical humidity. Pack lightweight merino wool or synthetic hiking shirts, sturdy trail sandals, and a compact waterproof rain shell that you'll use during afternoon showers.
- Stay connected: Buy an affordable travel eSIM before departure to navigate Waze, which is universally used in Costa Rica for real-time road conditions.
- Book popular national parks early: As of October 2026, parks like Manuel Antonio and Poás Volcano require online reservation slots in advance via the ICT tourism portal. There's no entry tickets sold at the gate, so you can't just show up unannounced.
- Passport requirements: Most Western travelers don't need a tourist visa for stays under 90 days. You can verify your passport rules with our visa checker tool before flying.
Frequently asked questions
When is the ideal month to visit Costa Rica?
February and March are the best overall months for first-time visitors seeking reliable sunshine, dry hiking conditions, and clear volcano views across the Pacific coast and Central Valley. For Caribbean beaches, September and October offer the finest conditions.
Is the green season in Costa Rica worth visiting?
Yes. The green season (May through August) offers lower lodging rates, fewer crowds, and lush green landscapes. Mornings are typically sunny, with rain arriving as localized showers in the late afternoon, leaving plenty of daylight for hiking, rafting, and wildlife viewing.
When can you see sea turtles in Costa Rica?
Green sea turtles nest along Tortuguero's Caribbean beaches from July through October, with peak hatching in September and October. On the Pacific coast, olive ridley turtles arrive in massive mass-nesting events (arribadas) at Ostional Wildlife Refuge between August and November.
What is the cheapest time to go to Costa Rica?
The cheapest months for flights and accommodations are September, October, and May. During these months, luxury eco-lodges and boutique beach hotels frequently discount room rates by 30% to 50% compared to peak dry season rates.
