El Castillo de La Fortuna Weather in May
El Castillo de La Fortuna in May averages 29°C (84°F) during the day and 21°C (70°F) at night. May is part of the rainy season, so frequent rainfall is typical.
Rainfall in El Castillo de La Fortuna in May
El Castillo de La Fortuna is in the rainy season in May, with rain on around 19 days and an average of 264 mm (10 in). With rain on many days and solid totals, showers are frequent and often moderately heavy. Waterproof gear is a sensible idea.
Temperature in El Castillo de La Fortuna in May
Daytime highs in El Castillo de La Fortuna in May reach 29°C (84°F), with nights around 21°C (70°F). This gives the month a fairly typical daily rhythm, with warmer afternoons and more comfortable nights. Nights are mild at around 21°C (70°F), which is comfortable for most people.
Sunshine in El Castillo de La Fortuna in May
The month enjoys around 203 hours of sunshine. The wet weather tends to wait until afternoon or evening to arrive, leaving the first half of most days dry and sunny.May in El Castillo de La Fortuna has its charm, but if you're looking for destinations with pleasant temperatures and sunny skies, our weather planner can help you explore other options in the world.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Costa Rica, check out our El Castillo de La Fortuna's climate page.
El Castillo de La Fortuna Temperature in May
Min Temperature
21°C (70°F)
Max Temperature
29°C (84°F)
Chance of Rain
62%
Precipitation
264 mm (10 in)
Rainy days
19 days
Sunshine
203 hours *
Percentage Sunshine
*
Daily Historical Temperatures
43-year average (1977-2025)
Based on our historical records, temperatures in El Castillo de La Fortuna typically stay consistent throughout May, with daily highs averaging around 29°C (84°F). Nights are pleasant, with lows around 20°C (68°F).
Average temperatures in May
Daily Historical Precipitation
43-year average (1977-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in May
Historical weather for El Castillo de La Fortuna in May
Browse day-by-day weather records for El Castillo de La Fortuna spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
El Castillo de La Fortuna historical weather extremes in May
Our historical data for El Castillo de La Fortuna spans 1997 to 2026, revealing these weather extremes.
- On May 25, 1998, temperatures climbed to 35°C (95°F), marking the warmest May day on record.
- The coldest May day was on May 29, 2008, with a maximum of 19°C (66°F).
- Nighttime temperatures dropped to 16°C (61°F) on May 7, 2013, marking the coldest May night on record.
- The wettest day in May El Castillo de La Fortuna was on May 15, 2001 with 156 mm (6.1 in) of precipitation.
Best Places in Costa Rica in May
Find out more about the weather in Costa Rica and which places have the best travel conditions in this month. See all of Costa Rica in May →
perfect weather
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tolerable
unpleasant
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What to Wear in El Castillo de La Fortuna in May
Warm but pleasant conditions in El Castillo de La Fortuna in May. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. It's going to pour! Pack a good poncho and prepare for very wet conditions. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.What To Do in El Castillo de La Fortuna in May
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Costa Rica, check out our El Castillo de La Fortuna's climate page.
See the full El Castillo de La Fortuna climate overview or explore weather in Costa Rica.
