Costa Rica in October: Weather, Travel Tips & Why It's a Great Time to Go

October sits halfway through Costa Rica’s green (rainy) season on the Pacific side, but on the Caribbean coast, it brings some of the best weather of the year. If you're wondering whether October is a good month for your trip, here’s what to expect — and how to make the most of Costa Rica in October.

Costa Rica in October: Green Season at Its Peak

October is one of the most interesting months to visit Costa Rica. While the Pacific coast experiences the rainiest period of the year, the Caribbean side often enjoys its own mini-dry season, making it a prime time for sunshine, calm seas, and snorkeling. If you’re looking for fewer crowds, lush green landscapes, and some of the best wildlife encounters of the year, October may be your perfect month.

Planning for other months? Check out our guides on Costa Rica in September and Costa Rica in August.

Costa Rica Weather in October

Pacific Coast (Nicoya, Central Pacific, Osa Peninsula)

• Expect heavy rains, especially in the afternoons and evenings.

• Some lodges and remote tours close due to flooding or muddy roads.

• Still, mornings can be beautiful — perfect for early hikes or wildlife tours.

Caribbean Coast (Puerto Viejo, Cahuita, Tortuguero)

• October brings drier, sunnier weather than most months.

• Great conditions for beaches, snorkeling, and turtle watching.

• Seas are calmer, making this one of the best times to visit the Caribbean side.

Central Valley & Highlands (San José, Arenal, Monteverde)

• Milder weather with cooler nights.

• Rain often starts in the afternoon, so plan activities early in the day.

• Cloud forests like Monteverde are misty and atmospheric, perfect for wildlife spotting.

Why Visit Costa Rica in October?

October may be rainy on the Pacific coast, but it’s one of the best-kept secrets of Costa Rica. Lush green landscapes, fewer crowds, lower prices, and incredible wildlife encounters — including turtle nesting — make it a unique time to explore. Additionally, the Caribbean coast boasts sunnier skies, pristine beaches, and tranquil waters. With vibrant festivals, thrilling adventure activities, and dramatic waterfalls, October offers an authentic, unforgettable Costa Rica experience for travelers willing to embrace the green season.

Weather & Climate Tips by Region

Region	Weather in October	Avg Temps (°C)	Highlights
Caribbean Coast	Mostly dry, sunny mornings, occasional showers	30–31 °C	Beaches, snorkeling, turtle tours, calmer seas
North & Northwest Pacific (e.g., Guanacaste)	Afternoon & evening downpours, mostly sunny mornings	26–30 °C	Lush green landscapes, fewer crowds, turtle nesting
Central & South Pacific (Manuel Antonio, Jaco)	Heavy rain in afternoons and evenings	27–29 °C	Waterfalls at peak flow, quiet beaches, lower hotel rates
Osa Peninsula / Costa Ballena	Frequent, sometimes intense rainfall	28–31 °C	Dense rainforest, wildlife spotting, world-class surfing (conditions variable)
Monteverde / Cloud Forest	Cool, misty, frequent rain	15–21 °C	Rainforest hikes, hanging bridges, wildlife spotting, pack for wet trails
Central Valley (San José, Heredia, Alajuela)	Morning sun, afternoon showers	19–25 °C	Volcano day trips, coffee tours, city exploration with cooler evenings

Best Things to Do in Costa Rica in October

Despite (or because of) the weather, October offers many special experiences:

• Beach time & snorkeling on the Caribbean coast: Enjoy Cahuita National Park, Punta Uva, and Playa Cocles. Puerto Viejo, Cahuita, and Tortuguero are excellent choices.

• Turtle watching: Both nesting and hatchling seasons are active in certain places (e.g., leatherbacks on the Pacific, green turtles on the Caribbean). Guided night tours are memorable.

• Waterfall hikes and rainforest exploration: La Fortuna, Manuel Antonio, Corcovado, when accessible — mornings are best; afternoon rains add drama to waterfalls.

• Birdwatching & wildlife tours: With lush vegetation, animals are more visible, including frogs, amphibians, birds, and insects. Monteverde, lowland rainforest, and Caribbean wetlands are ideal.

• Adventure sports: Whitewater rafting is strong due to raised river levels; surfing (though conditions vary) may offer bigger swells.

• Cultural events & festivals: Local festivals and food events are often less crowded but very authentic.

Events & Cultural Highlights

Limón Carnival / Día de las Culturas (Culture Day) 

The biggest October festival, celebrated around October 12, features parades, calypso music, traditional Afro-Caribbean dances, street food, and vibrant costumes. It’s a must-see if you’re on the Caribbean coast.

What to Pack for October in Costa Rica?

• Lightweight rain jacket or poncho.

• Quick-dry clothing & extra socks.

• Waterproof bag for electronics & documents.

• Insect repellent & sunscreen.

• Sturdy shoes for muddy trails.

• Light layers for cooler evenings in the highlands.

Tips for Planning & Traveling in October

• Be flexible with schedule: Allow wiggle room for weather disruptions. Don’t pack your days too tightly.

• Early mornings are golden: Many good weather windows are in the morning before rains set in. Plan hikes, drives, and national park visits early.

• Road travel caution: Some roads (especially unpaved ones) may be hard to navigate after heavy rain. Consider using 4WD where necessary, and check local conditions.

• Check lodge & tour availability ahead of time — some shut down in wetter months, especially in remote regions.

• Book Caribbean coast options early if you prefer calm beach time — since October is popular there among people who want to escape the wet Pacific.

• Pack smart: Waterproof gear, layers, footwear that can handle mud, insect repellent, waterproof covers, and an umbrella or poncho.

Pros & Cons of Visiting in October

Pros:

• Fewer crowds & lower prices. Because this is off-peak for many Pacific beach areas, accommodations, tours, and flights tend to be cheaper.

• Lush landscapes. The rain makes everything greener — waterfalls are more spectacular, wildlife more active.

• Unique wildlife opportunities: turtle nesting or hatchings in some regions (green sea turtles, leatherbacks), birdwatching (migratory species), etc.

• Caribbean coast advantage: for sun, beaches, water-based activities, October may be one of the best months.

Cons:

• Rain & storms. Some areas (especially the Pacific coast, southern Pacific) may face heavy rains, flooding, or temporary road closures. If you have strict timing, weather variability will need built-in flexibility.

• Weather unpredictability: You might get a perfect sunny morning and pouring rain in the afternoon. Activities may need to be adjusted.

• Some lodges or tours may close in very rainy zones, especially in the southern Pacific during the peak wet months.

Is October “Worth It”?

If you accept the trade-offs (possible rain, some road/travel challenges), October can be a deeply rewarding time to visit Costa Rica. You get lush landscapes, fewer crowds, lower prices, and a more intimate connection with nature. For many travelers who don’t mind a bit of rain (or can schedule around it), October offers value and richness that high season sometimes lacks.

If your priority is guaranteed sunshine on Pacific beaches every day, then October may come with more risk. But for travelers oriented toward wildlife, culture, scenery, adventure, and good deals, October can be one of the most special months to explore Costa Rica.

Suggested 7–10 Day Itinerary for October

1. San José / Central Valley – Coffee tour, volcano day trip.

2. Caribbean Coast (Puerto Viejo / Cahuita) – Beaches, snorkeling, Afro-Caribbean culture.

3. Tortuguero – Wildlife boat tours & turtle nesting.

4. Monteverde – Cloud forest hikes, hanging bridges, zip-lining.

5. Optional Pacific stop – If weather allows, visit Manuel Antonio or Nicoya for a day or two.

Final Thoughts: Is October a Good Time to Visit Costa Rica?

October isn’t the best choice if you’re dreaming of endless sunny days on the Pacific coast. However, if you're looking for great deals, fewer tourists, lush rainforests, and the Caribbean coast at its best, then October can be an incredible time to travel. Come prepared for rain, pack with flexibility, and you’ll discover a side of Costa Rica that’s wild, authentic, and unforgettable.

Frequently asked questions

What are the best and worst months to go to Costa Rica?

The best months for reliably dry, sunny weather are December–April (high season). The worst months for guaranteed sunshine are September–October, the heart of the Pacific rainy season — though each region varies.

What's the rainiest month in Costa Rica?

October (together with September) is generally the rainiest month nationwide, especially on the Pacific side. Expect heavy afternoon/evening downpours in many Pacific areas.

Which side of Costa Rica is best in October — Pacific or Caribbean?

The Caribbean coast (Puerto Viejo, Cahuita, Tortuguero) tends to be much drier and sunnier in October, while the Pacific coast experiences its wettest period. If you want beach days, favor the Caribbean in October

What is the festival in Costa Rica in October?

Limón Carnival / Día de las Culturas (Culture Day) in Limón is the big October cultural event — parades, music, calypso, food and street parties centered around October 12 (Culture Day) with surrounding festivities.

Is Costa Rica worth it in October?

Yes — if you accept some rain. October offers lush landscapes, fewer crowds, lower prices, excellent wildlife viewing, and the Caribbean’s best beach weather, so many travelers find it very rewarding.

Is October considered the off-season in Costa Rica?

Largely yes — October falls in the low/green season for most Pacific destinations, so it’s off-peak there (fewer tourists, lower rates). The Caribbean side, however, can be busier because its weather is better then.

How much rain in Costa Rica in October?

Rainfall varies by region — but October is among the wettest months; some Pacific areas average several hundred millimeters (~300 mm / ~12 inches) for the month, with heavy daily showers common. Expect shorter sunny windows, especially in mornings

Is Costa Rica expensive?

Costa Rica is more expensive than many Central American countries, especially during high season (Dec–Apr) and at tourist hotspots — but you can lower costs significantly by traveling in green season (May, September, October) and choosing mid-range lodgings and local food

Is Costa Rica in the hurricane belt?

Costa Rica sits south of the main hurricane belt and is rarely struck by major hurricanes; the Caribbean coast can be affected by tropical storms, but direct hurricane hits are uncommon because of the country’s southern latitude. Still, monitor storm forecasts during hurricane season.

How to dress for Costa Rica in October?

Pack for warm, humid weather plus rain: a lightweight rain jacket or poncho, quick-dry clothing, sturdy (waterproof or quick-dry) hiking shoes, a hat and sunscreen, insect repellent, and a light layer for cooler highland evenings.

Where is it hot in October?

Low-elevation coastal areas (Pacific and Caribbean beaches, Guanacaste, Nicoya Peninsula) remain hottest — daytime highs in the high 20s–low 30s°C (80s–90s°F). Highlands like Monteverde and the Central Valley are noticeably cooler.

Are prices lower in Costa Rica in October?

Yes — generally. October is part of the green/off-season for much of the country, so flights, hotels and tours often offer lower rates and deals, especially on the Pacific side. (Caribbean properties may be an exception.)