Alajuela & Central Valley Travel Guide (2026)

• Average daytime temperature: 22–26 °C (year-round "eternal spring") • Average nighttime temperature: 14–18 °C • Humidity: 60–75% • Driest months: December–April • Wettest months: September–October • At Poás Volcano (2,700 m): 8–18 °C and often misty This is the most temperate region in Costa Rica — bring a light sweater for evenings.

• **Poás Volcano National Park:** active crater, 2,700 m elevation, often misty before 10 AM • **La Paz Waterfall Gardens:** five waterfalls + wildlife sanctuary (sloths, hummingbirds, pumas) • **Doka Estate Coffee Tour:** classic coffee plantation tour • **Sarchí:** colorful oxcarts and traditional crafts • **Zoo Ave / Rescate Wildlife Rescue Center:** ethical wildlife encounters • **Grecia & Atenas:** colonial towns famous for "best climate in the world" • **Volcán Arenal:** technically in Alajuela province (San Carlos canton)

• Light layers (mornings cool, days warm) • Light sweater or fleece for evenings • Rain jacket year-round • Comfortable walking shoes • Camera — Poás crater views are dramatic • Sun protection — UV is strong even when cool • Light scarf for windy crater rim • Day pack for waterfall trails

SJO is technically in Alajuela, not San José city. Most travelers spend at least one night nearby: • **Hotels in Alajuela city:** 10 minutes from airport, walkable downtown • **Hotels in San José:** 30–45 minutes (traffic dependent) • **Best for early flights:** Hampton, Hilton Garden Inn, Country Inn — all <10 min • Avoid renting a car the same day you arrive on a long flight — fatigue + unfamiliar roads

• **December–April:** clearest volcano views • **May–November:** lush coffee fincas, occasional clouds at Poás • **Visit Poás before 10 AM** for the best chance to see the crater (clouds roll in mid-morning)