Jacó Weather in May
May in Jacó typically sees daytime highs of 29°C (84°F) and nighttime lows of 25°C (77°F). May falls within the rainy season, so heavy rainfall is to be expected.
Rainfall in Jacó in May
Jacó is in the rainy season in May, with rain on around 17 days and an average of 491 mm (19 in). Showers during the rainy season tend to be heavy and can come down intensely. An umbrella is often not enough, so a poncho or waterproof jacket is a better choice.
Temperature in Jacó in May
May in Jacó brings high temperatures, with highs of 29°C (84°F) and nights around 25°C (77°F). This gives the month a fairly typical daily rhythm, with warmer afternoons and more comfortable nights. With lows around 25°C (77°F), the nights are warm enough that a sheet is usually all you need for bedding.
Sunshine in Jacó in May
Enjoy a sunny month with about 203 hours of sunshine, even though this month falls in the wet season. There is still enough sun to enjoy the outdoors.Our weather planner can help you find worldwide destinations with pleasant weather during this period. January and February typically offer the best weather for Jacó.
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 Jacó's climate page.
Jacó Temperature in May
Min Temperature
25°C (77°F)
Max Temperature
29°C (84°F)
Chance of Rain
58%
Precipitation
491 mm (19 in)
Rainy days
17 days
Sunshine
203 hours *
Percentage Sunshine
*
Daily Historical Temperatures
43-year average (1977-2025)
Based on our historical records, temperatures in Jacó 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 Jacó in May
Browse day-by-day weather records for Jacó spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Jacó historical weather extremes in May
Based on 29 years of weather observations in Jacó between 1997 and 2026, these are the recorded 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).
- The coldest night in May in Jacó was on May 7, 2013, with a minimum of 16°C (61°F).
- The wettest May day on record brought 156 mm (6.1 in) of precipitation to Jacó (May 15, 2001).
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 →
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unpleasant
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What to Wear in Jacó in May
Warm weather calls for comfortable, breathable clothing in May. Cotton t-shirts, shorts, light dresses, and sandals are perfect. You might still want a light layer for evenings or air-conditioned places (for example buses). Also bring a poncho, it will rain a lot! Waterproof everything you can. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.What To Do in Jacó 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 Jacó's climate page.
See the full Jacó climate overview or explore weather in Costa Rica.
