Best Time to Go to Costa Rica: Month-by-Month Travel Guide

Costa Rica operates on two primary seasons rather than four: the dry season (verano, or summer) and the rainy season (invierno, or winter). The dry season runs roughly from mid-December through April, bringing reliably sunny days, lower humidity, and ideal beach conditions. This is peak tourist season, with higher prices and more crowds at popular destinations.

The rainy season spans May through mid-November, with the heaviest rains typically falling in September and October. Mornings are often clear and sunny, with afternoon showers that cool things down. The landscape is intensely green, waterfalls are at full power, and wildlife is especially active. Many travelers find the rainy season offers a more authentic and affordable Costa Rica experience.

It's worth noting that Costa Rica's regions experience weather very differently. The Caribbean coast operates on a near-opposite schedule from the Pacific, making it possible to find dry weather somewhere in the country at almost any time of year.

Guanacaste province in northwestern Costa Rica has the most distinct dry season in the country. The dry season here runs from late November through April, with virtually no rain for weeks at a time in January, February, and March. This makes Guanacaste—home to beaches like Tamarindo, Flamingo, Conchal, and Nosara—the top choice for travelers who want guaranteed sun and beach time.

The tradeoff is that Guanacaste can become extremely hot and dry by March and April, with temperatures reaching into the mid-to-upper 90s°F (35–38°C). Vegetation turns golden-brown and the landscape can feel parched. Many travelers prefer visiting in December through February for a balance of sunshine and greenery.

During the rainy season (May through November), Guanacaste does receive significant rainfall. However, September and October can still offer many sunny mornings perfect for surfing and water activities.

The Central Pacific coast—including Jacó, Manuel Antonio, and Quepos—receives rain throughout the year, but the dry season (December through April) still brings significantly reduced rainfall and plenty of sunshine. This region is more accessible from San José than Guanacaste, making it popular for weekend trips and shorter stays.

Manuel Antonio National Park is best visited during the dry season when trails are easier to navigate and wildlife viewing is excellent. Sloths, monkeys, and scarlet macaws are active year-round, but the dry season makes spotting them easier in the thinner vegetation.

The green season in the Central Pacific (May through November) sees heavy afternoon rains, but the park and beaches remain beautiful. Surf conditions actually improve during the rainy season, making Jacó a popular destination for surfers year-round.

Costa Rica's Caribbean coast—including Puerto Viejo, Cahuita, and Tortuguero—operates on a different weather pattern than the Pacific. The Caribbean doesn't have a true dry season; it receives rain year-round thanks to trade winds off the Atlantic. However, the region experiences two relatively drier periods: February through April and September through October.

September and October, which are the rainiest months on the Pacific side, can be surprisingly pleasant on the Caribbean—making this an excellent time to combine a rainy-season rate on a Pacific-side hotel with a Caribbean adventure. Tortuguero is best visited July through September for peak green sea turtle nesting season.

San José and the surrounding Central Valley sit at about 3,800 feet (1,160 meters) elevation, giving the region a temperate climate year-round. Temperatures typically range from the mid-60s to low 80s°F (18–28°C) regardless of season. The dry season (December through April) brings clear skies and pleasant days, while the rainy season sees afternoon showers but rarely all-day rain.

The Central Valley is an excellent base for day trips to Poás and Irazú volcanoes during the dry season, when clear mornings allow crater views. The Orchid and flower festivals typically take place during the rainy season when blooms are at their peak.

Costa Rica's peak season (mid-December through April) commands premium prices across the board. Hotels, tours, rental cars, and domestic flights all cost more and sell out faster. The absolute busiest periods are the two weeks around Christmas and New Year's, Semana Santa (Easter week), and the US school spring break in March.

The green season (May through November) offers the best value. Hotel rates drop 20–40%, and you'll have popular attractions largely to yourself. The rainy season also brings excellent wildlife viewing, full rivers for rafting, and dramatic waterfalls. September and October are the slowest months and offer the deepest discounts, but also the highest chance of significant rain.

Regardless of when you visit, packing layers is essential in Costa Rica. Coastal areas are warm and humid, but cloud forest reserves like Monteverde can be quite cool and misty. Volcano hikes require a jacket even in the dry season due to altitude.

If visiting during the rainy season, a lightweight rain jacket or poncho is essential. Quick-dry clothing is practical year-round. Waterproof sandals or shoes are helpful for river crossings and muddy trails. Reef-safe sunscreen is required in many protected marine areas and is the responsible choice throughout the country.