Costa Rica - Things to Do in Costa Rica in May

Things to Do in Costa Rica in May

May weather, activities, events & insider tips

Low Season · Budget Friendly

May Weather in Costa Rica

Temperature, rainfall and humidity at a glance

28°C (82°F) High Temp
22°C (72°F) Low Temp
200 mm (7.9 inches) Rainfall
70% Humidity

Is May Right for You?

Weigh the advantages and considerations before booking

Advantages
  • + May splits the difference well: the dry-season crowds have thinned while green-season prices kick in, cutting accommodation rates by 40% across Costa Rica and leaving you with half the visitors you'd battle in March or April.
  • + The year's first rains have clocked in, but they're as reliable as a Swiss train: thunderheads stack up around 2 PM, unload for three hours, then roll out by 5 PM, gifting photographers honeyed light and giving everyone cooler nights for deep sleep.
  • + Wildlife emerges from dry-season cover in force, sloths are suddenly visible in Guanacaste's newly green canopy, and Tortuguero records its first turtle nests of the year.
  • + Coffee harvest wraps in May, so every plantation tour hands you beans roasted within days, and baristas will walk you through the flavor gaps between Tarrazú, Tres Ríos, and Central Valley lots.
Considerations
  • Humidity wakes at 70% and keeps climbing. If sticky air drains you, schedule anything active between 6-10 AM or after 4 PM when the breeze returns.
  • On the Nicoya Peninsula and Southern Caribbean, some back roads turn to chocolate pudding, restricting access to 4WD only, a detail a few tour desks conveniently forget to mention.
  • Those afternoon storms can torpedo full-day outings; Isla del Coco boat runs and offshore dive trips get scrubbed more often than operators like to advertise.

Best Activities in May

Top things to do during your visit

Volcano hiking tours

Arenal's cone shows itself only in the mornings before noon clouds seal it away. May's damp forest floor draws wildlife down from the canopy, so coatis and howler monkeys cross the trail at eye level instead of 30 m (98 ft) overhead.

Booking Tip: Wait until you're on the ground to book. Morning skies are stable enough to avoid cancellations. Yet flexible if conditions flip. Licensed La Fortuna operators refund in full when weather shuts a trip down.
Caribbean coast surfing lessons

Southern Caribbean reef breaks sharpen under May's shifting swells, Puerto Viejo dishes steady 1-2 m (3-6 ft) waves for intermediates, while Salsa Brava still lobs the odd head-high set for experts. After the storms, the sky flames orange for a full twenty minutes.

Booking Tip: Caribbean-side surf schools stay open straight through May, unlike Pacific towns that shutter early. Reserve lessons the afternoon before once you've eyeballed the next day's swell chart.
Coffee plantation tours

The final harvest bags come down from the high farms in May, letting you sample beans processed three ways on one tour. Wet mills run at full tilt, so you follow the chain from red cherry to dried parchment, and the roaster's aroma is still in the air, something you never catch in dry season when everything's already packed.

Booking Tip: Central Valley farms outside San José run tours on the hour through May. Target estates that add a cupping table, you'll taste how altitude-grown beans differ from valley crop in the same sip.
Turtle nesting night tours

Green turtles begin trickling into Tortuguero in May. You won't face the August/September mobs, yet you'll watch the full nesting ritual minus fifty competing flashlights. The sand is still firm for walking, and lightning over the ocean frames the scene like free fireworks.

Booking Tip: Tortuguero runs nightly turtle walks in May but caps groups at eight. Reserve through the licensed operators listed below, they hand out red-filtered flashlights that keep the animals calm.

May Events & Festivals

What's happening during your visit

May 1
Día del Trabajador (Labor Day)

May 1st turns San José's Parque Central into an open-air party: union marches dissolve into live bands and food stalls ladling olla de carne from clay pots. Locals treat the holiday as a beach pass, so buses to Manuel Antonio and Jaco sell out fast.

Mid May
Fiesta de San Isidro Labrador

San Isidro de El General throws an agricultural fair with real ox-cart parades, working bulls, not postcard props. Farmers parade prize animals through town while vendors hawk fresh cheese wrapped in banana leaves. The weekend market stocks the year's best spread of regional handicrafts.

Packing Checklist

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Essential Tips

Insider knowledge and common pitfalls to avoid

Insider Knowledge
Call hotels directly after checking online, May's empty rooms often earn you an upgrade at the quoted rate. Install the Waze app, Costa Ricans log storm-triggered road closures in real time, while Google Maps lags for days. Bring earplugs for Manuel Antonio, howler monkeys kick off their 4:30 AM chorus regardless of weekends. Skip plantation gift shops, the real single-origin stash waits at San José's Barrio Escalante roasteries, where locals buy their beans.
Avoid These Mistakes
Ignore anyone who claims "green season" means endless rain, May still delivers 6-7 hours of sun, just in tighter windows. Don't lock yourself into an all-inclusive for the whole stay, you'll miss the post-storm sunshine when locals reclaim the sand and beach bars roll out two-for-one deals. Don't expect plastic to work outside San José, small towns run on cash, and ATMs empty on holiday weekends.
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