Understanding La Fortuna Costa Rica Weather

By Carolina Solórzano

Your guide to La Fortuna weather and finding the best time for your visit.

At Wave Expeditions, we’ve welcomed thousands of travelers to La Fortuna soaking in the sun, splashing through rain, and making memories in every kind of weather. Because here, the forecast isn’t a deal-breaker… it’s part of the fun.

Costa Rica’s weather follows a classic tropical rhythm: a dry season and a rainy season but don’t be fooled. With dozens of microclimates, including lush rainforest zones like La Fortuna, the experience changes fast and beautifully.

In this guide, you’ll get a clear breakdown of La Fortuna weather by season and month, plus real traveler tips, packing advice, and the best tours to enjoy no matter what the skies are doing.

TABLE OF CONTENT

Peaceful safari float tour near a waterfall in Arenal with Wave Expeditions

General Climate Overview

La Fortuna weather is shaped by Costa Rica’s tropical climate, meaning warm temperatures year-round with high humidity and plenty of lush vegetation. Expect daytime highs between 81°F and 88°F (27°C to 31°C) and nighttime lows between 68°F and 76°F (20°C to 24°C).

There are two main seasons:

Dry Season (December to April): Sunshine dominates, especially in March and April. Perfect for rafting, ziplining, and volcano hikes.

Rainy Season (May to November): Often called the “green season,” this is when the rainforest thrives. Expect rain mostly in the afternoon or evening.

Despite the name, the rainy season often includes clear mornings — ideal for early tours.

Family with kids enjoying a fun whitewater rafting tour in Arenal, Costa Rica

Monthly Breakdown

Here’s what La Fortuna weather looks like throughout the year:

MonthAvg Temp (High/Low)Rainfall EstimateWhat to Expect
January83/71°FLowGreat for escaping northern winters.
February85/72°FVery LowDry, warm, ideal for outdoor activities.
March88/73°FVery LowHot and sunny — bring sunscreen!
April90/74°FModerateHottest month, still mostly dry.
May86/73°FIncreasingStart of the rainy season.
June84/72°FModerateClear mornings, afternoon showers.
July84/72°FModerate“Little summer” dry break possible.
August84/72°FModerateGreat for early-day adventures.
September82/71°FHighRainiest month, fewer crowds.
October82/71°FHighGreenest month, tranquil experiences.
November83/72°FDecreasingTransition to dry season.
December83/71°FLowHoliday season begins with sunshine.

Best Tours by Season

La Fortuna weather doesn’t stop the fun — it just shapes it. Here’s how to match your adventure with the skies:

Dry Season Picks:

Rainy Season Picks:

  • Safari Float: Spot wildlife when the jungle is most alive.
  • Early Morning Rafting: Mornings are often dry and misty.
  • Waterfall Rappelling: Rain or shine, you’re meant to get soaked it’s all part of the rush.
Person ziplining through the forest with volcano view in La Fortuna, Costa Rica

Packing Tips

Knowing the La Fortuna weather helps you pack smart. Here’s a quick list by season:

For Dry Season:

  • Lightweight, breathable clothing
  • Hat and UV sunglasses
  • Reef-safe sunscreen
  • Closed-toe water shoes

For Rainy Season:

  • Quick-dry clothes and rain jacket
  • Waterproof bag for electronics
  • Insect repellent
  • Extra socks and a dry change of clothes

Wave Tip: Even during the dry season, expect to get wet. Pack quick-dry clothing and waterproof essentials to stay comfortable all day.

Group navigating intense whitewater rapids in La Fortuna with Wave Expeditions

FAQ: Real Traveler Questions

When is the best time to visit La Fortuna?

If you want sun and fewer rain interruptions, visit between December and April. For lush scenery and fewer crowds, May through November is a fantastic alternative.

Do afternoon showers ruin activities?

Nope! Most tours happen in the morning when it’s typically dry. Rain often comes in short bursts and adds to the jungle atmosphere.

Does it rain all day during rainy season?

Rarely. Most rainfall happens in the afternoon and evening. Mornings remain perfect for rafting, hiking, and wildlife tours.

Is La Fortuna weather reliable for planning?

As reliable as a rainforest gets! Forecasts may show rain every day, but it’s often brief and predictable. Local guides know how to work around it.

Final Thoughts on La Fortuna Weather

Whether you’re chasing sunshine or rain-soaked rainforest beauty, La Fortuna weather delivers unforgettable moments year-round. From paddling through rapids under blue skies to floating beneath a canopy after a warm rain, each forecast has its own magic.

Plan smart, pack right, and let Wave Expeditions guide you through Costa Rica’s wild side.

Your raft is waiting. Smiles guaranteed.

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