The best time to visit Costa Rica is from mid-December through April — the dry season, when the Pacific coast, cloud forests and inland regions all have reliable sunshine and the lowest rainfall of the year. For a shoulder-season sweet spot that avoids peak holiday prices, aim for mid-April, May, or early November, when weather is still mostly good and prices run 30-50% below the Christmas-to-Easter peak.
Costa Rica only has two seasons — dry (verano) and green (invierno) — but the country’s microclimates make a huge difference. The Caribbean coast runs on an inverted schedule, so September-October (the Pacific’s wettest months) are the Caribbean’s best weather. This guide covers month-by-month timing, every region’s own best window, and the specific activities (humpback whales, surf, turtle nesting, quetzal viewing) that each have their own calendar.
Costa Rica at a glance — month by month
| Month | Season | Verdict |
|---|---|---|
| January | Dry (peak) | Perfect weather, peak prices and crowds |
| February | Dry | Best weather of the year, slightly fewer crowds post-mid-month |
| March | Dry, hot | Hottest and driest; Spring Break mid-month |
| April | Dry → green transition | First half great weather + lower prices; Easter week caution |
| May | Green (early) | Shoulder-season sweet spot — lush, warm, cheaper |
| June | Green | Lush, rainier than May, surf starts on the Pacific |
| July | Green, mid-season peak surge | US school holidays bring a July surge in prices |
| August | Green | Second-half mid-season price lift from US summer travelers |
| September | Green (wettest) | Wettest month on the Pacific, driest and best on the Caribbean |
| October | Green (end) | Shoulder sweet spot — low prices, Caribbean at its driest |
| November | Green → dry transition | Shoulder sweet spot — rains ending, prices still low until mid-Nov |
| December | Dry (starting) | Pre-15 Dec sweet spot; peak surge from 15 Dec |
Month-by-month breakdown
January in Costa Rica
Season: Dry (peak). Verdict: Perfect weather, peak prices and crowds.
January is deep dry season in most of Costa Rica. Guanacaste and the Pacific coast are reliably sunny and warm (26-32°C). Monteverde and Arenal are cooler (18-25°C) with clear mountain views. Expect crowded national parks (Manuel Antonio sells out early), hotels at 2-3× green-season rates, and shuttle buses between regions booking out several days ahead. First 2 weeks of January especially busy. Humpback whale season on the South Pacific (Osa Peninsula) winds down.
February in Costa Rica
Season: Dry. Verdict: Best weather of the year, slightly fewer crowds post-mid-month.
February often has the single clearest skies of the year — Arenal Volcano shows its summit cone most days (uncommon in rainy season). Pacific beaches are at their driest. Resplendent quetzal breeding season peaks in the Monteverde and San Gerardo de Dota cloud forests. Prices stay high but hotel availability improves slightly after President’s Day weekend.
March in Costa Rica
Season: Dry, hot. Verdict: Hottest and driest; Spring Break mid-month.
March is dry and hot — Pacific coast temperatures climb to 32-34°C and some trees shed leaves. The windy and dusty “veranillo” transition starts late month. Spring Break (varies, typically weeks 2-3) brings a surge of American family travelers; Papagayo, Guanacaste and Manuel Antonio hotels hit peak capacity. Great visibility for the Nicoya coast beaches but you’ll want fully air-conditioned lodging.
April in Costa Rica
Season: Dry → green transition. Verdict: First half great weather + lower prices; Easter week caution.
First week of April often brings Semana Santa (Holy Week) — a major domestic travel week when Costa Rican beaches fill up and some businesses close Thursday-Friday. Weather is still dry and hot. From mid-April the first afternoon showers of the green season begin, but mornings stay reliably sunny — this is one of the single best value weeks of the year. Nesting leatherback turtles arrive on both coasts.
May in Costa Rica
Season: Green (early). Verdict: Shoulder-season sweet spot — lush, warm, cheaper.
May is the start of the green season proper. Mornings are typically sunny, afternoon rain is predictable (1-3 pm showers that clear by 5 pm). Everything greens up spectacularly — waterfalls thunder, bird activity peaks, orchids bloom. Prices drop 30-50% from April rates. May is one of the two best overall months to visit Costa Rica (October is the other).
June in Costa Rica
Season: Green. Verdict: Lush, rainier than May, surf starts on the Pacific.
June brings more consistent rain in all regions except the far north Pacific. Mornings still typically sunny; afternoon rains stretch longer than May. Pacific surf season starts — Jaco, Dominical and Playa Hermosa get consistent swells. Humpback whale season on the South Pacific (Osa, Golfo Dulce) starts in late June and runs through October. Olive ridley turtle nesting at Ostional begins.
July in Costa Rica
Season: Green, mid-season peak surge. Verdict: US school holidays bring a July surge in prices.
July sees “veranillo” — a 1-3 week drier window within the green season, usually in the second half of July. Pacific surf is excellent. US school-holiday travelers return in volume, so hotel prices surge back to dry-season levels in major beach areas. Caribbean coast (Puerto Viejo, Cahuita) is actually at its driest and hottest in July — unlike the rest of the country, the Caribbean has an inverted season.
August in Costa Rica
Season: Green. Verdict: Second-half mid-season price lift from US summer travelers.
August is like July — green-season rain in the Pacific, drier on the Caribbean. The south Pacific humpback-whale season intensifies. Olive ridley arribadas (mass turtle nesting events) at Ostional happen on the dark-moon weeks. Guanacaste’s inland fincas (coffee plantations, horse ranches) are at their lushest.
September in Costa Rica
Season: Green (wettest). Verdict: Wettest month on the Pacific, driest and best on the Caribbean.
September is the single wettest month on the Pacific side — rain can be all-day in late September. Many lodges in Osa and Nicoya close for maintenance. But September is simultaneously the driest window on the Caribbean coast — Puerto Viejo, Tortuguero and Cahuita have their best weather of the year. If you’re committed to September travel, pivot to the Caribbean.
October in Costa Rica
Season: Green (end). Verdict: Shoulder sweet spot — low prices, Caribbean at its driest.
October has the lowest hotel prices and lowest crowds of the entire year on the Pacific coast — some travelers call it the best-value month if you accept some rain. The Caribbean coast remains sunny and dry. By late October the Pacific rains ease. Humpback whales still visible in the south Pacific. Leatherback turtles leaving Caribbean nesting beaches.
November in Costa Rica
Season: Green → dry transition. Verdict: Shoulder sweet spot — rains ending, prices still low until mid-Nov.
November is a classic shoulder sweet spot. The first two weeks are still green season but drying out — river levels drop, trails firm up. By mid-November Pacific weather is reliably dry. Thanksgiving week (US) brings a short price surge in major tourist regions. Still much cheaper than December. Green-season tour operators are opening back up.
December in Costa Rica
Season: Dry (starting). Verdict: Pre-15 Dec sweet spot; peak surge from 15 Dec.
The first two weeks of December are among the best overall windows of the year — Pacific weather is reliably dry, Caribbean still OK, and holiday prices haven’t kicked in. From 15 December through 5 January, Costa Rica hits peak holiday rates — resorts in Papagayo and Manuel Antonio sell out, prices surge 60-100%, and most lodges require minimum 3-5 night stays. Humpback whales return to Osa for the Pacific breeding season.
Best time to visit each Costa Rica region
Guanacaste (Pacific NW)
Highlights: Papagayo, Tamarindo, Playa Flamingo
Best time: December-April (sunny, hot)
Worst time: September-October (wettest)
Driest region of Costa Rica. Beach-resort heartland. Dry season essentially rainless. Green season has afternoon rain but mornings stay sunny.
Nicoya Peninsula
Highlights: Santa Teresa, Montezuma, Nosara
Best time: December-April
Worst time: September-October
Pacific-side peninsula with yoga retreats and surf towns. Similar pattern to Guanacaste. Santa Teresa surf is best December-April.
Central Pacific
Highlights: Manuel Antonio, Jaco, Dominical
Best time: December-April (dry); May and November shoulder sweet spots
Worst time: September-October
Manuel Antonio National Park is the single busiest park in Costa Rica. Jaco and Playa Hermosa are major surf spots.
Osa Peninsula / South Pacific
Highlights: Corcovado NP, Drake Bay, Puerto Jiménez
Best time: January-April (dry) and July-October (humpback whales)
Worst time: September-October (muddiest trails)
The most biodiverse region of Costa Rica. Corcovado NP in dry season vs humpback whales in green season — two different trips.
Northern Zone (Arenal / La Fortuna)
Highlights: Arenal Volcano, hot springs, waterfall rappelling
Best time: February-April (clearest volcano views)
Worst time: September-November (cloudiest)
Arenal is often cloud-covered year-round. February-March gives the best chance of clear-summit views. Hot springs great in any season.
Monteverde Cloud Forest
Highlights: Zip lines, cloud forest reserves, resplendent quetzal
Best time: February-April (clearest, drier)
Worst time: October-November (wettest)
Cool and misty year-round. Dry season still sees heavy fog. Quetzal breeding season peaks February-May.
Caribbean Coast
Highlights: Puerto Viejo, Cahuita, Tortuguero
Best time: September-October and February-March (inverted season)
Worst time: May-June and November-January (wettest)
Costa Rica’s weather exception. The Caribbean coast has an INVERTED season from the Pacific — it is driest when the Pacific is wettest. September is the single best month for Caribbean travel.
Best time by activity
| Activity | Best time |
|---|---|
| Beach relaxation (Pacific coast) | Mid-December through April |
| Beach relaxation (Caribbean coast) | September to mid-October, and February-March |
| Humpback whale watching (South Pacific) | Late July through October (both populations) |
| Olive ridley turtle arribada at Ostional | August to November (new-moon weeks) |
| Leatherback turtle nesting | March to July (Caribbean), November to March (Pacific) |
| Resplendent quetzal viewing | February through May (breeding plumage) |
| Pacific coast surfing | May through October (biggest swells) |
| White-water rafting (Pacuare) | May through December (highest river flow) |
| Hiking Corcovado and Arenal | January through April (driest trails) |
| Coffee tours (Central Valley) | October through February (harvest season) |
Dates to avoid in Costa Rica
| Dates | Why |
|---|---|
| 15 December – 5 January | Peak holiday season. Hotel rates 60-100% above shoulder. Many lodges require 3-5 night minimum stays. International flights priced 50%+ above shoulder. |
| Semana Santa / Holy Week (Thursday-Sunday before Easter) | Costa Rica’s main domestic holiday. Pacific beaches packed with Tico families. Many businesses close Holy Thursday and Good Friday. Supermarket alcohol sales banned. |
| US school Spring Break (varies, usually weeks 2-3 of March) | Major US family-travel surge. Papagayo, Playa Flamingo and Manuel Antonio sell out. Prices climb 30-50% above February levels. |
| Last two weeks of September (Pacific coast) | Rainiest window of the year. Some Osa and Nicoya lodges close. Trails flooded. Pivot to the Caribbean coast if you must travel these dates. |
When Costa Rica is cheapest
Hotel pricing in Costa Rica swings hard between dry and green seasons:
- Cheapest: September-October, Pacific coast — rates 40-60% below Christmas peak
- Shoulder sweet spots: May, early November, pre-15 December — great value with mostly good weather
- Peak: 15 December-5 January, Semana Santa week — 60-100% above shoulder prices
Related travel guides
Frequently asked questions
What is the best overall time to visit Costa Rica?
The best overall time to visit Costa Rica is mid-December through April — this is the dry season when the Pacific coast, cloud forests and inland regions are at their most reliable. For a shoulder-season sweet spot that avoids peak holiday prices, aim for the second half of April, all of May, or early November — weather is still mostly good and prices run 30-50% below peak.
What are the dry season and green season in Costa Rica?
Costa Rica has two seasons rather than four. Dry season (locally called verano or “summer”) runs mid-December through April — minimal rain on the Pacific side, hot temperatures, clear skies. Green season (invierno or “winter”) runs May through mid-December — morning sunshine with regular afternoon showers, lusher landscapes, and 30-50% lower prices.
When is whale season in Costa Rica?
Costa Rica is one of very few places on Earth where humpback whales from both the Northern and Southern Hemisphere migrate — producing two separate seasons. Southern Hemisphere humpbacks (from Antarctica) visit July through October. Northern Hemisphere humpbacks (from California) visit mid-December through early April. The South Pacific coast — Marino Ballena National Park, Osa Peninsula, Drake Bay — is the best viewing region.
When can you see turtles nesting in Costa Rica?
Different species nest in different windows. Olive ridleys (mass “arribada” events at Ostional) nest July-November. Leatherbacks nest on Pacific beaches November-March and Caribbean beaches March-July. Green turtles nest on the Caribbean (Tortuguero) July-October. Hawksbills nest in small numbers year-round. Tortuguero National Park on the Caribbean is the most reliable turtle-viewing park.
Is Costa Rica’s Caribbean coast really that different?
Yes. The Caribbean coast has an inverted season — it is driest when the Pacific is wettest, and vice versa. September and October (the Pacific’s wettest months) are the Caribbean’s driest and clearest. If you plan a September-October trip, pivot the whole itinerary to the Caribbean (Puerto Viejo, Cahuita, Tortuguero) rather than the Pacific.
When is the cheapest time to visit Costa Rica?
The cheapest months to visit Costa Rica are September, October and November — mid-green season on the Pacific side. Hotel rates run 40-60% below dry-season peaks. Flights from North America are also notably cheaper. The weather trade-off is real (wet afternoons) but mornings stay sunny and the landscape is at its lushest. The Caribbean coast is excellent weather in this same window.
When is the best time to see Arenal Volcano clearly?
February and March give the best chance of clear-summit views of Arenal. Even in dry season, Arenal’s summit cone is often cloud-covered. Early mornings (6-9 am) are typically clearer than afternoons. Note that Arenal has not produced visible lava since 2010 — the “volcano experience” today is the dramatic cone itself plus the surrounding hot springs and waterfalls, not active eruption.
When is Costa Rica’s surf season?
Pacific surf has two seasons. The big-wave season for experienced surfers runs May through October — south and south-west swells generate consistent 2-3 metre waves on exposed Pacific beaches (Playa Hermosa, Pavones, Dominical). The small-wave season runs November through April — gentler, friendlier swells at Tamarindo, Santa Teresa and Jaco better for learners. Caribbean surf (Salsa Brava at Puerto Viejo) runs December-March.
Should I avoid September and October in Costa Rica?
Not if you can be flexible on itinerary. September-October have the lowest prices of the year, lowest crowds, and lush green scenery. The Caribbean coast has its driest, best weather. The Pacific side is wet but still has sunny mornings. Avoid September-October only if your itinerary requires reliable Pacific-side beach weather or Corcovado jungle access (trails are muddiest).
How many days do you need in Costa Rica?
Minimum 7 days for one region (either Pacific or Caribbean plus one inland highlight like Arenal or Monteverde). 10-14 days is the sweet spot for a classic Costa Rica trip covering 2 beaches, 1 cloud forest and 1 volcano. For Corcovado jungle access or multi-coast comparison, allow 14-17 days.
