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The Arenal Volcano rising over lush rainforest in Costa Rica

Costa Rica in April: The Last Dry Month, and Why the Two Coasts Disagree

Reviewed September 2026

6 min read·Updated Sep 2026

April is the last month of the Pacific dry season and, for most of the country, the hottest. Guanacaste is parched at about 25 mm, the Central Valley starts catching afternoon showers, and the Caribbean carries on as it always does at 280 mm. Semana Santa falls at the end of March in 2027, which leaves April unusually free.

The rain map, which is the whole point

Costa Rica in April: rain by coastIn April the Caribbean coast receives about 280 millimetres of rain, the Central Valley about 81, and Guanacaste on the northwest Pacific about 25. Costa Rica has two opposed rainfall seasons, so a single national wet season is misleading.Costa Rica in April: rain by coastTypical monthly rainfall, and why the two coasts disagreeCaribbean (Puerto Viejo)280 mmCentral Valley (San Jose)81 mmGuanacaste (NW Pacific)25 mm
Costa Rica in April: about 280 mm on the Caribbean, 81 mm in the Central Valley and 25 mm in Guanacaste. September and October are the Pacific’s wettest months and the Caribbean’s driest.

Costa Rica does not have a single wet season, and this is the thing most trip planning gets wrong. The country is split by a mountain spine:

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  • The Pacific side – Guanacaste, Nicoya, Manuel Antonio, Osa – has a clear dry season from roughly December to April and a green season from May to November.
  • The Caribbean side – Tortuguero, Puerto Viejo, Cahuita – does not follow that pattern at all. It is wet most of the year, and its driest windows are September–October and, to a lesser extent, February–March.
  • The Central Valley – San José, Alajuela – sits between the two and is mild all year.

So “the best time to visit Costa Rica” has no single answer. It depends entirely on which coast you are going to.

April on the Pacific

The end of the dry season, and it shows. Guanacaste is brown and hot, with the deciduous tropical dry forest – a genuinely rare habitat – leafless. That has one large advantage: wildlife is far easier to see in bare trees and gathered around the few remaining water sources. Howler monkeys, coatis and birds concentrate.

Beaches are at their best and driest. Roads are dry and unpaved routes are passable without difficulty, which is not true from May onwards.

A pale colonial building above wide stone steps, Costa Rica
The Central Valley is mild all year – it is the coasts that swing.

What April is good for

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  • Guanacaste and Nicoya beaches – Tamarindo, Sámara, Santa Teresa – at the tail of the dry season.
  • Dry-forest wildlife at Santa Rosa and Palo Verde, where leafless trees make spotting easy.
  • Arenal and La Fortuna, with better odds of actually seeing the volcano than in the green season.
  • Quetzal season – the resplendent quetzal nests roughly February to July in the highland cloud forests of Monteverde and San Gerardo de Dota, and April is squarely inside it.
  • Turtles on the Caribbean – leatherbacks nest on the Caribbean coast from around March to May.

Juan Santamaría Day, 11 April

A national public holiday commemorating the drummer boy who died at the Battle of Rivas in 1856 during the campaign against William Walker’s filibusters. He is Costa Rica’s national hero and the international airport is named after him. In 2027 the holiday falls on a Sunday. Expect parades in Alajuela, his home town.

Prices and crowds

High season on the Pacific until the end of the month, then rates fall sharply as the green season starts. Late April is one of the better value windows – still mostly dry, already cheaper. With Semana Santa in March in 2027, April avoids the country’s biggest domestic travel week entirely. See what a trip to Costa Rica costs.

What to pack

Light clothing, strong sun protection and a hat – April sun on the Pacific is fierce. Insect repellent. A light rain layer for the Caribbean and the cloud forest, which are wet whatever the Pacific is doing. Binoculars, which do more for a Costa Rica trip than almost anything else you can carry.

The April 2027 calendar

  • Through April – the last month of the Pacific dry season; Guanacaste at about 25 mm.
  • Through April – dry forest leafless and wildlife easy to spot at Santa Rosa and Palo Verde.
  • Sunday 11 April – Juan Santamaría Day, a national public holiday; parades in Alajuela.
  • March to May – leatherback turtle nesting on the Caribbean coast.
  • February to July – resplendent quetzal nesting season in the highland cloud forests.
  • Late April – Pacific rates fall as the green season approaches.

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Frequently asked

Is April a good time to visit Costa Rica?

For the Pacific, yes – it is the last dry month, the beaches are at their best and dry-forest wildlife is easy to see. The Caribbean is wet, as it is most of the year.

Does Costa Rica have one wet season?

No, and this is the most common planning mistake. The Pacific is dry December to April and green May to November; the Caribbean does not follow that pattern and is driest in September and October.

How hot is Costa Rica in April?

It is the hottest month in much of the country, particularly Guanacaste, where the dry forest is leafless and the ground is parched.

Why is wildlife easier to see in April?

Because the tropical dry forest drops its leaves and animals gather around the few remaining water sources. Bare branches and concentrated wildlife make Santa Rosa and Palo Verde excellent now.

Can you see quetzals in April?

Yes – the resplendent quetzal nests roughly February to July in the highland cloud forests at Monteverde and San Gerardo de Dota, so April is inside the best window.

What is Juan Santamaría Day?

A national public holiday on 11 April for Costa Rica’s national hero, who died at the Battle of Rivas in 1856. The international airport is named after him and Alajuela holds parades. It falls on a Sunday in 2027.

When do prices drop in Costa Rica?

From late April, as the Pacific green season begins. Late April is a good value window – mostly dry and already cheaper.

Are unpaved roads passable in April?

Yes, easily – it is the end of the dry season. That changes from May, when river crossings and unpaved routes become far harder.