Last Updated on July 28, 2026 by Daniel Globe
Costa Rica can be rewarding in every month of the year, but the best time to visit depends on where you are going and what you want to do. The Pacific coast has a pronounced dry and green season, while the Caribbean follows a different rainfall pattern. Wildlife seasons, crowds, prices and surf conditions also change throughout the year.
Quick Answer
For most first-time visitors, the best time to visit Costa Rica is mid-December through April, when much of the Pacific side has drier weather. Choose May, June or November for greener scenery, lighter crowds and often lower prices. For Caribbean beaches, September and October can actually be among the relatively drier periods.
Key Takeaways
- Mid-December through April is generally the easiest period for sunny Pacific-coast vacations, but it is also the main high-demand season.
- May, June and November offer a strong balance of green scenery, fewer visitors and often better lodging rates.
- September and October are normally the wettest months on the Pacific side, while the Caribbean can have one of its relatively drier periods then.
- Wildlife timing is species-specific: Tortuguero turtle nesting runs roughly June through October, while humpback whales visit Pacific waters in two annual migration periods.
- There is no single bad month for all of Costa Rica. Choose dates based on the region and experiences that matter most to you.
Costa Rica Weather and Seasons
Costa Rica has a tropical climate shaped by elevation, mountain ranges and the influence of both the Pacific Ocean and Caribbean Sea. According to the Costa Rica Tourism Board’s climate guide, those factors produce several regional climates rather than one nationwide weather pattern.
For broad trip planning, the tourism industry commonly describes a dry season from about mid-December to April and a green or wet season from May into December. That shorthand works best for the Pacific side and much of the interior. On the Pacific, December through March is normally the clearest dry period, April is transitional, and May through October is rainy, with November transitioning back toward drier weather.
July and August can bring a relative reduction in Pacific rainfall known as veranillo, or “little summer.” September and October are generally the rainiest Pacific months.
Note: The Caribbean coast does not have the same well-defined dry season. Official climate guidance identifies relatively drier periods around February–March and September–October, while substantial rain can occur in any month.
Elevation matters just as much as season. Lowland and coastal destinations are generally hotter and more humid, while mountain and cloud-forest areas such as Monteverde can feel much cooler, especially at night. Packing a light layer is useful even when most of your trip is tropical.
There is no single “best month” for every part of Costa Rica—the Pacific, Caribbean and highlands can have very different conditions on the same day.
Best Time to Visit Costa Rica by Travel Goal
| Travel Goal | Good Time to Go | What to Know |
|---|---|---|
| Dry Pacific beaches and hiking | Mid-December–April | Generally drier and easier for outdoor plans, but crowds and rates are higher. |
| Lower crowds and better value | May, June and November | Good shoulder-season balance; expect some rain and keep plans flexible. |
| Pacific surfing | June–October | The official tourism board highlights these months for surfing; conditions vary by break and skill level. |
| Tortuguero sea turtles | June–October | Nesting timing varies naturally; confirm current park and guided-tour conditions. |
| Ostional olive ridley arribadas | July–November | September and October often bring especially strong mass-nesting activity. |
| Pacific humpback whales | December–March and July–September | South Pacific destinations also commonly promote whale viewing into October. |
| Caribbean beaches | February–March or September–October | These are relatively drier periods rather than a guaranteed rain-free season. |
Peak Tourist Seasons
Costa Rica’s main high-demand period generally overlaps with the dry season, especially from the Christmas and New Year holidays through March and April. Popular beach areas in Guanacaste, the Central Pacific and other heavily visited regions can become busy, and national-park tours, rental cars and popular accommodations may sell out.
Semana Santa, or Holy Week, can create another major surge in domestic and international travel. If your dates fall around Christmas, New Year, spring break or Easter, reserving lodging and high-priority activities well ahead of time is sensible.
The green season usually brings lighter demand. May and June are particularly useful for travelers who want greener landscapes without jumping straight into the wettest part of the Pacific rainy season. November can also provide an appealing transition toward the high season.
Pro Tip: During the green season, schedule hikes, zip-lining and other weather-sensitive activities in the morning when possible. Keep the afternoon flexible in case rain develops.
Best Time for Outdoor Activities
For hiking, volcano visits, canopy tours and long beach days on the Pacific side, the drier months from roughly mid-December through April are the easiest to plan around. Trails are generally less muddy, and there is a better chance of completing a full day outdoors without a prolonged rain interruption.
Arenal Volcano National Park can be visited year-round, and its trails lead through forest and old lava-flow areas. Dry-season travel may make walking conditions easier, but a clear view of the volcano is never guaranteed. Tropical cloud cover can develop at any time.
Surfing follows a different calendar. Costa Rica’s official tourism site highlights June through October for surfing, particularly on the Pacific side. Beginners should choose breaks and conditions suited to their experience rather than assuming bigger surf is automatically better.
Birdwatching is rewarding throughout the year because Costa Rica has abundant resident species as well as seasonal migrants. Northern Hemisphere migrants add variety during the northern winter, while different habitats—from cloud forests to wetlands—support distinct species at different times.
Wildlife Viewing Opportunities
| Location | Wildlife | Best Time to Visit |
|---|---|---|
| Tortuguero National Park | Nesting sea turtles, monkeys, birds and other rainforest wildlife | June–October for the main turtle nesting season |
| Ostional National Wildlife Refuge | Olive ridley sea turtles | July–November; strong arribadas often occur in September–October |
| South Pacific / Marino Ballena area | Humpback whales and marine life | July–September and December–March, with local viewing often extending into October |
Costa Rica’s wildlife does not follow one universal “best season.” Instead, plan around the species you most want to see. SINAC currently lists Tortuguero’s turtle nesting season as June through October and recommends checking current conditions because natural timing can change.
On the Pacific side, olive ridley turtles nest throughout the year, but the famous mass arrivals known as arribadas are especially associated with Ostional from July through November. September and October can produce some of the largest concentrations.
Humpback whales provide another reason to visit during both the dry and green seasons. According to the Costa Rica Tourism Board’s marine wildlife guidance, migratory humpbacks occur off Costa Rica roughly from December through March and again from July through September. South Pacific destinations such as the Marino Ballena area commonly promote whale viewing into October.
Rain can also make forests particularly active for frogs and other moisture-loving wildlife. Instead of assuming the dry season is always best, choose the season that matches your target species and habitat.
Festivals and Events
Costa Rica’s calendar can add a cultural dimension to a trip. Independence Day is observed on September 15, commemorating independence from Spanish rule in 1821. Celebrations around the country include civic activities, music and parades.
January brings the Fiestas de Palmares, known for music, horse parades, rodeo events and other festivities. In San José, the Festival de la Luz is associated with December and features illuminated floats and holiday celebrations.
The official Costa Rica events guide is the better source for trip planning because exact schedules and individual event dates can change from year to year. Check the current calendar before purchasing non-refundable travel around a specific festival.
Budget-Friendly Travel Times
Travelers looking for lower prices should consider the green season, when demand is generally below the dry-season peak. The strongest compromise between cost and weather is often found in May, June and November, which Costa Rica’s official tourism guidance identifies as key shoulder-demand months.
These months can offer greener landscapes and lighter crowds without automatically putting your entire trip in the rainiest Pacific period. Rates still vary by destination, weekend, school holiday and event, so compare exact dates before booking.
September and October may bring deeper discounts in some Pacific destinations, but there is a trade-off: they are normally the wettest months on that side of the country. Some businesses in the southern part of Costa Rica may also reduce operations during the wettest part of the green season.
For flexible travelers, this can still be worthwhile. September and October overlap with major turtle and whale-watching opportunities, while the Caribbean coast can experience one of its relatively drier periods.
Weather Considerations
Weather preparation matters more in Costa Rica than simply choosing a “dry” or “rainy” month. Coastal areas can be hot and humid, while high-elevation destinations can feel noticeably cooler. A trip that combines Guanacaste, Monteverde and San José may therefore require several types of clothing.
During the Pacific green season, rain commonly develops in the afternoon or early evening, but storms vary in duration and intensity. September and October generally bring the heaviest Pacific rainfall, so travelers should allow extra flexibility for long drives, hikes and boat excursions.
Useful year-round items include lightweight breathable clothing, sunscreen, insect repellent, comfortable walking shoes, a compact rain layer and a light sweater or jacket for higher elevations.
Note: A weather forecast for San José does not reliably describe conditions at the beach, in Monteverde or on the Caribbean coast. Check the forecast for each stop on a multi-region itinerary.
Special Considerations for Specific Regions
Guanacaste and the North Pacific
Guanacaste has one of Costa Rica’s strongest dry-season patterns. Mid-December through April suits travelers prioritizing sunshine and beach time, but it is also the busiest period. The green season transforms the landscape and can provide better value, while September and October tend to bring substantially more rain.
Central and South Pacific
Destinations around Manuel Antonio, Dominical, Uvita and the Osa Peninsula become very lush during the green season. December through April is easier for travelers who prioritize dry hiking conditions, while July through October is especially attractive for visitors interested in South Pacific humpback whales. September and October are wet, so build flexibility into road and outdoor plans.
Caribbean Coast and Tortuguero
The Caribbean is the biggest exception to the standard Costa Rica seasonal calendar. Rain occurs throughout the year, with relatively drier periods around February–March and September–October. Tortuguero is especially appealing from June through October for turtle nesting, although viewing is regulated and natural timing changes from year to year.
Monteverde and Other Highlands
Higher-elevation destinations are cooler than the coast and can be misty even when other regions are sunny. Monteverde’s cloud-forest character is part of the experience, so bring a light layer and rain protection regardless of season.
Central Valley and Coffee Country
The Central Valley has a milder highland climate and can be visited year-round. Travelers interested in coffee production may prefer the harvest period. The Coffee Institute of Costa Rica states that Central Valley harvesting generally runs from November to mid-March, although timing varies among Costa Rica’s coffee-growing regions.
The practical takeaway is simple: choose Costa Rica travel dates by region and priority rather than by a single nationwide weather rule. Mid-December through April offers the easiest dry-weather planning for much of the Pacific, but it also brings heavier demand. The green and shoulder seasons can deliver lower prices, vivid landscapes and some of the country’s best wildlife experiences.
Frequently Asked Questions
What is the best time to travel to Costa Rica?
For most first-time visitors planning a Pacific-coast or multi-region trip, mid-December through April provides the most dependable dry weather. May, June and November are better choices for travelers who value greener scenery, lighter crowds and often lower rates. Caribbean weather follows a different pattern.
What is the weather like in Costa Rica during the dry season?
Much of the Pacific side has sunnier weather and less rainfall during the dry season. Coastal and lowland areas remain warm, while mountain destinations can be considerably cooler. The Caribbean does not share the same clearly defined dry season, so conditions there should be checked separately.
Are there any months to avoid traveling to Costa Rica?
There is no month that must be avoided nationwide. September and October are normally the rainiest months on the Pacific side and may complicate road trips or outdoor plans, but those same months can be excellent for turtle and whale viewing and can be relatively drier on the Caribbean coast.
What are the advantages of traveling during Costa Rica’s dry season?
The main advantage is easier planning for beaches, hiking, volcano visits, road trips and other outdoor activities on the Pacific side. The trade-off is higher demand: popular accommodations, tours and rental cars can cost more or sell out, especially around Christmas, New Year and Easter.
What activities are popular in Costa Rica during the dry season?
Popular choices include national-park hikes, volcano visits, zip-lining, beach days, snorkeling and road trips between Pacific destinations. Wildlife viewing and surfing are not limited to the dry season, however, and some of their best seasonal opportunities occur during the green months.
Is Costa Rica worth visiting during the rainy season?
Yes. The green season brings lush landscapes, stronger waterfalls, fewer visitors in many destinations and often better accommodation prices. It also overlaps with important surfing, turtle and whale seasons. Plan weather-sensitive activities for the morning and leave room in the itinerary for rain delays.
When is the best time to see turtles and whales in Costa Rica?
SINAC lists Tortuguero’s main turtle nesting season as roughly June through October. Olive ridley arribadas at Ostional are especially associated with July through November. Pacific humpback whales occur in two broad migration periods, around December through March and July through September, with South Pacific viewing often extending into October.
Sources
- Costa Rica Tourism Board — Climate — regional dry and rainy seasons, Caribbean rainfall patterns and Pacific veranillo.
- Costa Rica Tourism Board — When to Visit — seasonal travel demand, green-season conditions and general trip timing.
- SINAC — Tortuguero National Park — official turtle nesting-season guidance and visitor information.
- Costa Rica Tourism Board — Wildlife by Sea — humpback whale migration periods.
- Costa Rica Tourism Board — Events and Festivals — major cultural events including Fiestas de Palmares.
- Coffee Institute of Costa Rica — Central Valley — regional coffee climate and harvest period.