September is one of the most misunderstood — and most rewarding — months to visit Costa Rica. While much of the Pacific coast experiences heavier rain, the Caribbean side enjoys its best weather of the year, making September a strategic choice for travelers who know where to go.
This guide explains where to go in Costa Rica in September, including the best places to visit, what to eat, what to pack, the right shoes to bring, and essential travel tips — fully optimized for SEO and featured snippets.
Why Visit Costa Rica in September?
September is ideal for travelers seeking sunshine, culture, and fewer crowds — if they choose the right regions.
Top reasons to visit in September:
-
Best weather of the year on the Caribbean coast
-
Very few tourists nationwide
-
Lush landscapes and dramatic rainforest scenery
-
Peak sea turtle nesting season
-
Excellent value on accommodations and tours
Average temperatures range between 75°F–88°F (24°C–31°C) depending on region and elevation.
Best Places to Visit in Costa Rica in September
1. Caribbean Coast (Puerto Viejo & Cahuita) — ⭐ TOP CHOICE
September is the best month of the year to visit Costa Rica’s Caribbean coast.
Why the Caribbean in September:
-
Sunny days and calm seas
-
Excellent snorkeling and swimming
-
Afro-Caribbean culture, food, and music
Don’t miss:
-
Cahuita National Park
-
Puerto Viejo beaches
-
Local reggae bars and cultural experiences
2. Tortuguero National Park (Peak Turtle Nesting)
September is peak season for green sea turtle nesting in Tortuguero.
Highlights:
-
Night turtle nesting tours
-
Wildlife-filled canals
-
One of Costa Rica’s most iconic natural experiences
This is a once-in-a-lifetime experience for nature lovers.
3. Osa Peninsula (For Adventurous Travelers)
While rainier, September offers a raw and powerful experience in the Osa Peninsula.
Why visit in September:
-
Extremely active wildlife
-
Fewer visitors than any other time of year
-
Lush rainforest at its most vibrant
Best suited for experienced or adventure-focused travelers.
What to Eat in Costa Rica in September
September is a fantastic month for Caribbean cuisine.
Must-try foods:
-
Caribbean rice and beans (coconut milk-based)
-
Rondón (traditional seafood stew)
-
Fresh seafood
-
Tropical fruits like pineapple and banana
Caribbean flavors shine this time of year.
What to Pack for Costa Rica in September
Packing smart is essential.
Clothing essentials:
-
Lightweight, quick-dry clothing
-
Swimsuits
-
Light rain jacket or poncho
-
Hat and sunglasses
Best Shoes for Costa Rica in September
Choose footwear designed for wet conditions.
Recommended footwear:
-
Waterproof trail or hiking shoes
-
Comfortable walking sneakers
-
Sandals with strong grip
Avoid smooth soles — trails can be muddy.
Travel Tips for Costa Rica in September
-
Focus travel on the Caribbean coast
-
Plan outdoor activities early in the day
-
Expect rain on the Pacific side
-
Take advantage of lower prices and fewer crowds
-
Ideal month for slow travel and cultural immersion
Is September a Good Time to Visit Costa Rica?
Yes — if you travel smart. September is one of the best months to visit Costa Rica’s Caribbean coast, offering sunshine, wildlife, and cultural richness with minimal crowds.
Plan Your Costa Rica Trip for September
At Know CR, we specialize in custom-designed Costa Rica journeys, built around the best destinations and seasons.
Whether you want Caribbean beaches, wildlife encounters, or off-the-beaten-path adventures, we design trips perfectly suited to September travel.
