Temperatures rarely vary in Arenal throughout the year. Weather is hot and humid most months with highs of mid-80 degrees Fahrenheit and lows barely dropping below 68 degrees. Rainfall is highest between May and October, creating a lush, tropical environment perfect for rainforest trekking, but if you wish to indulge in water sport activities on lakes and rivers December to April are great months to visit.

If you're planning a trip to Arenal, consider stopping in Alajuela, the capital of the province. As Costa Rica's second-largest city, Alajuela offers all the conveniences of modern living alongside a rich history. In pre-Columbian times, the region was home to native tribes before Spanish settlers arrived in the mid-1600s. This fascinating heritage is reflected in the city's architecture and museums, providing a glimpse into its past.

Alajuela is also a key producer of Costa Rica's coffee, sugar cane, maize, and tobacco, all of which are exported globally. Visitors can enjoy a coffee plantation tour, sampling award-winning blends along the way. For a true local experience, time your visit to coincide with the vibrant Farmer’s Market on Saturday mornings, where you'll find fresh herbs, cheeses, fruits, and handmade clothing. Alternatively, spend a few weeks in Alajuela to immerse yourself in the culture and brush up on your Spanish skills with a local family.

This charming city offers a perfect blend of history, culture, and local flavour, making it an ideal stop on your Costa Rican adventure.

Things to do in Arenal:

• Arenal Volcano National Park: Hike the trails around the majestic Arenal Volcano, where you can enjoy views of the active volcano, lush rainforest, and old lava flows.
• Hot Springs: Relax in the natural hot springs that are heated by the nearby volcano. Popular spots include Tabacón, Baldi Hot Springs, and EcoTermales.
• La Fortuna Waterfall: A short hike takes you to this breathtaking 70-meter waterfall, where you can swim in the cool pool at its base.
• Lake Arenal: Enjoy kayaking, paddle boarding, or boat tours on Costa Rica's largest lake, with incredible views of the volcano in the background.
• Canopy Tours (Zip Lining): Experience the rainforest from above with an exciting zip-line tour, offering incredible views of the Arenal Volcano and surrounding jungle.
• Hanging Bridges: Walk through the treetops on a series of hanging bridges at Mistico Arenal Hanging Bridges Park, where you can spot wildlife and enjoy panoramic views of the rainforest.
• Arenal Volcano Observatory: Visit the observatory to learn more about the volcano’s history and view it from various observation points. You may also spot wildlife like howler monkeys and toucans.
• Wildlife Watching: Explore the region’s rich biodiversity by taking a guided wildlife tour, where you can spot sloths, monkeys, toucans, and more.
• Canoeing on the Penas Blancas River: Go on a guided canoe or raft tour along the Penas Blancas River, where you can spot wildlife like crocodiles, monkeys, and various bird species.
• Repelling and Canyoning: For an adventurous experience, go repelling down waterfalls and explore the canyons of the region.
• Horseback Riding Tours: Take a horseback ride through the rainforest, farms, and trails, with stops at stunning viewpoints and natural pools.
• Coffee Tours: Visit local coffee farms around Arenal to learn about Costa Rican coffee production and sample some of the best brews in the country.