Planning a trip to Costa Rica or considering a move there? The weather is a big factor in making the most of your time in this tropical country. Costa Rica’s climate is diverse, shaped by its geography, elevation, and proximity to both the Pacific Ocean and Caribbean Sea.
Whether you’re chasing sunny beaches, hiking rainforests, or settling into a new home, understanding the weather patterns will help you pack, plan, and thrive. This guide breaks down the climate by region, season, and month, with practical tips for travelers and expats. Let’s get into it.
Costa Rica’s Climate: The Big Picture
Costa Rica sits just 8–11 degrees north of the equator, giving it a tropical climate with warm temperatures year-round. The country has two main seasons: the dry season (December to April) and the rainy season (May to November).
Locals often call the dry season “summer” and the rainy season “winter,” even though the country’s north of the equator. Temperatures typically range from 70°F to 95°F (21°C to 35°C), but elevation and location create microclimates, meaning weather can vary dramatically even within a few miles.
Your original post mentioned the Pacific coast being drier and hotter, the Caribbean coast being wetter, and the Central Valley having milder temperatures. That’s spot-on, but there were a few inaccuracies we’ll correct. For example, the Caribbean coast’s dry season isn’t December to August—it’s more like February to April and September to October, with less rain but still high humidity.
Also, the temperature ranges you listed for some regions were slightly off, so we’ll refine those based on recent data. Let’s break it down by region.
Weather by Region
Timing your trip to Costa Rica can make or break your experience, especially when weather plays such a big role. Each region has its sweet spot for sunny days, fewer crowds, or lower costs, depending on what you’re after—be it beach lounging, hiking, or cultural tours. Here are the best months to visit each area, so you can plan around your priorities.
Pacific Coast
The Pacific coast, home to spots like Tamarindo, Jacó, and Manuel Antonio, is a hotspot for beachgoers and surfers. It has a clear dry season from December to April, with hot, sunny days and temperatures often hitting 85°F to 95°F (29°C to 35°C). Nights cool down to around 75°F (24°C). Humidity is lower during this time, making it comfortable for swimming, sunbathing, or zip-lining.
The rainy season, May to November, brings warm temperatures (80°F to 90°F or 27°C to 32°C) but higher humidity and afternoon showers. These showers are usually short but heavy, often clearing up by evening. September and October are the wettest months, with some roads becoming muddy or impassable.
Travelers: The dry season is prime time for beach activities, but expect crowds and higher prices, especially in January and March. In the rainy season, mornings are often sunny, so plan outdoor activities early. Bring lightweight rain gear and quick-dry clothing.
Expats: If you’re settling here, the dry season’s heat can spike energy bills for air conditioning. During the rainy season, humidity may affect homes—invest in dehumidifiers and check for proper drainage to avoid flooding.
Caribbean Coast
The Caribbean coast, including Puerto Viejo and Tortuguero, is wetter and more humid than the Pacific. Your original post said the dry season runs from December to August, but that’s not quite right. The Caribbean has two drier periods: February to April and September to October, though “dry” is relative—it still rains often.
Temperatures range from 75°F to 90°F (24°C to 32°C) year-round, with humidity often feeling oppressive, especially in the rainy months of November to January and May to August. Rainfall here is heavier, with Tortuguero seeing up to 200 inches annually compared to the Pacific’s 100 inches.
Travelers: September and October are surprisingly good for visiting the Caribbean coast, as they’re often sunnier than other regions during those months. Tortuguero’s canals and wildlife tours are great year-round, rain or shine. Pack waterproof bags for gear and expect wet conditions.
Expats: High humidity can lead to mold in homes, so ventilation is key. Coastal properties may face stronger winds or flooding risks during heavy rains. Check local weather apps like Windy for real-time updates.
Central Valley
The Central Valley, where San José sits, is known for its mild, spring-like climate due to its higher elevation (3,000–5,000 feet). Your post nailed the average temperatures: highs around 75°F (24°C) and lows near 60°F (15°C) year-round. The dry season (December to April) brings sunny days with occasional breezes, while the rainy season (May to November) sees brief afternoon showers. September and October are the wettest months, but rainfall is lighter than on the coasts.
Travelers: The Central Valley is comfortable any time of year, ideal for city tours, coffee plantation visits, or hiking. Pack layers for cooler evenings, especially in higher areas like Cartago.
Expats: The mild climate means lower cooling costs, but rainy season showers can snarl traffic in San José. Plan errands for mornings and invest in a good umbrella. The consistent weather makes gardening easier, but watch for pests during wet months.
Northern Plains
The Northern Plains, including Arenal and Monteverde, are warm and lush, with temperatures between 80°F and 95°F (27°C to 35°C). The dry season (December to April) is sunny and hot, perfect for hiking or soaking in hot springs. The rainy season (May to November) brings frequent showers and higher humidity, with Monteverde’s cloud forests often misty and cool (65°F to 75°F or 18°C to 24°C). Your post correctly noted more rain here than in the Central Valley but less than the coasts.
Travelers: Dry season is best for clear views of Arenal Volcano and adventure sports like rafting. In the rainy season, Monteverde’s misty forests are magical, but trails can be slippery—bring sturdy shoes.
Expats: Monteverde’s cooler climate is a draw, but fog and rain can make driving tricky. Arenal’s warmer lowlands are great for farming, but heavy rains may affect unpaved roads. Stay updated with local forecasts.
Southern Zone
The Southern Zone, including the Osa Peninsula and Corcovado National Park, is hot and humid, with temperatures from 80°F to 95°F (27°C to 35°C). The dry season (December to April) offers sunny days for hiking and wildlife spotting, while the rainy season (May to November) brings heavy downpours, especially in September and October. This region gets more rain than the Northern Plains but is less humid than the Caribbean coast.
Travelers: The dry season is ideal for exploring Corcovado’s biodiversity, but book early due to limited lodging. Rainy season travel is possible, but some trails may close—check with park rangers.
Expats: The Osa Peninsula’s remote vibe is appealing, but rainy season flooding can isolate communities. Stock up on supplies and ensure reliable internet for weather updates. Humidity control is a must for homes.
Microclimates: Expect the Unexpected
Costa Rica’s microclimates are real and can catch you off guard. A sunny beach in Tamarindo might be 10 miles from a rainy forest in the hills. Elevation, ocean currents, and trade winds create these pockets, so always check forecasts for your exact destination. Apps like AccuWeather or Weather Underground are reliable for 10-day forecasts, especially for remote areas. Your post mentioned this variability, and it’s a key point—never assume the weather in one spot matches another nearby.
Best Months to Visit by Region
Timing your trip to Costa Rica can make or break your experience, especially when weather plays such a big role. Each region has its sweet spot for sunny days, fewer crowds, or lower costs, depending on what you’re after—be it beach lounging, hiking, or cultural tours. Here are the best months to visit each area, so you can plan around your priorities.
| Region | Best Months | Why |
|---|---|---|
| Pacific Coast | December–April | Hot, dry, and sunny; great for beaches but crowded and pricier. |
| Caribbean Coast | February–April, September–October | Less rain, warm, and fewer crowds; ideal for wildlife and beaches. |
| Central Valley | Year-round | Mild and pleasant; less rain than coasts; great for city and culture. |
| Northern Plains | December–April | Sunny and hot; perfect for volcanoes and adventure; less muddy trails. |
| Southern Zone | December–April | Dry and sunny; best for hiking and wildlife; fewer road issues. |
Shoulder Seasons (May and November): Your post recommended May and November as shoulder seasons, and that’s a solid tip. May marks the transition to the rainy season, with mostly sunny days and occasional showers.
November shifts to the dry season, with lush greenery from recent rains and fewer tourists. Both months offer lower prices and quieter attractions, making them great for budget travelers or those who prefer a calmer vibe. For expats, these months are good for settling in before peak tourist or rainy seasons hit.
Average Temperatures and Rainfall
Knowing what to pack or how to prep your home starts with understanding Costa Rica’s temperatures and rainfall patterns. From the hot, humid coasts to the milder highlands, each region has its own climate rhythm. This section gives you the numbers—highs, lows, and rain stats—so you can plan your wardrobe, activities, or even your move with confidence.
| Region | Temperature Range | Dry Season Highs | Rainy Season Highs | Annual Rainfall | Heaviest Rain |
|---|---|---|---|---|---|
| Pacific Coast | 75°F–95°F (24°C–35°C) | Up to 95°F (35°C) | 85°F–90°F (29°C–32°C) | ~100 inches | September–October |
| Caribbean Coast | 75°F–90°F (24°C–32°C) | Up to 90°F (32°C) | 85°F–90°F (29°C–32°C) | 150–200 inches | November–January |
| Central Valley | 60°F–75°F (15°C–24°C) | 75°F (24°C) | 75°F (24°C) | ~70 inches | May–October |
| Northern Plains | 80°F–95°F (27°C–35°C) | Up to 95°F (35°C) | 85°F–90°F (29°C–32°C) | ~120 inches | September–October |
| Southern Zone | 80°F–95°F (27°C–35°C) | Up to 95°F (35°C) | 85°F–90°F (29°C–32°C) | ~140 inches | September–October |
Temperatures drop at higher elevations, so pack a light jacket for places like Monteverde or Poás Volcano. Rainfall varies widely mountainous areas like Tortuguero can see up to 25 feet annually, while Guanacaste’s dry forests get far less.
Practical Tips for Travelers
Traveling to Costa Rica means being ready for its tropical climate, which can throw heat, rain, or both your way. Whether you’re hiking volcanoes or chilling on the beach, a few smart moves can keep you comfortable and safe. These tips cover packing, timing your days, and staying flexible to make the most of your trip.
- Packing: Bring lightweight, quick-dry clothing for heat and humidity. Include a rain jacket, sturdy shoes for hiking, and water shoes for rafting or waterfalls. For San José or highland areas, pack a sweater for cooler nights. Eco-friendly sunscreen and bug spray are musts—buy them before you go, as they’re pricey locally.
- Timing Activities: In the rainy season, schedule outdoor adventures for the morning when it’s usually sunny. Afternoon showers are common, so have indoor backups like museums or coffee tours.
- Safety: Costa Rica rarely sees hurricanes, but heavy rains can cause localized flooding or landslides, especially in lowlands. Check local alerts before heading to coastal or remote areas.
- Flexibility: Weather can change fast, so keep plans loose. If rain hits, embrace it—rainforests are vibrant in the wet season, and waterfalls are at their peak.
Practical Tips for Expats
Moving to Costa Rica comes with its share of adjustments, especially when it comes to the weather. From humid coastal days to rainy highland afternoons, the climate can shape your home life, daily plans, and even your budget. These tips focus on practical steps to help you settle in comfortably, covering everything from home maintenance to navigating local conditions as a new resident.
- Home Prep: Humidity is a challenge, especially on the coasts. Use dehumidifiers, seal windows, and check for mold regularly. Ensure proper drainage around your property to handle heavy rains.
- Daily Life: Rainy season traffic can be a hassle, especially in urban areas like San José. Plan errands early and avoid peak hours. Invest in reliable internet for weather updates and remote work.
- Gardening and Outdoors: The Central Valley’s mild climate is great for year-round gardening, but coastal areas need plants that handle heat and rain. Rainy season is ideal for planting, as soil is moist.
- Community: Connect with locals or expat groups for tips on handling seasonal changes, like road conditions or power outages during storms.
Weather and Activities: What to Do When
Costa Rica’s weather sets the stage for its incredible activities, from surfing to rainforest treks. Each season offers unique opportunities, whether you’re chasing clear skies or thriving in the green, rainy months. This section matches activities to the best times of year, helping you plan adventures that fit the forecast.
- Dry Season (December–April): Perfect for beaches, surfing, and hiking. Visit Manuel Antonio for clear trails or Arenal for volcano views. Book early for holidays like Christmas or Easter, as prices spike. Wildlife spotting is easier, with sea turtles nesting on both coasts.
- Rainy Season (May–November): Great for white-water rafting, as rivers swell (try the Pacuare River in November). Rainforests like Corcovado are lush, and waterfalls like Rio Celeste are stunning. Fewer crowds mean better deals on tours and lodging.
- Shoulder Seasons: May and November balance good weather with lower costs. May’s sunny mornings are great for beach days, while November’s greenery suits rafting and forest hikes.
Final Thoughts
Costa Rica’s weather is as varied as its landscapes, from sunny Pacific beaches to misty cloud forests and humid Caribbean jungles. Whether you’re visiting for a week or moving for good, knowing what to expect helps you plan smarter.
The dry season offers sun and crowds, while the rainy season brings lush scenery and savings. Shoulder months like May and November are often the sweet spot for both. Check local forecasts, pack for versatility, and stay flexible—Costa Rica’s charm shines no matter the weather.
Current Weather In Costa Rica
A short story about the weather in Costa Rica
On a recent trip from Drakes Bay in the south of Costa Rica to San Jose, the weather we encountered was sunny blue skies in the morning accompanied by the tropical heat and on the boat ride to Sierpe we road through a large, but short-lived downpour with dark skies.
From Sierpe to San Jose we climbed through the Cerro de la Muerte and temperatures that dropped close to freezing at 13,000 feet and then dropped down into the Central Valley and its eternal spring like temperatures.
As the locals comment about the Costa Rica weather, If you do not like it just wait a while, it will soon change.