San Antonio Weather in May
San Antonio in May sees high daytime temperatures of 26°C (79°F) and nighttime lows of 18°C (64°F). As part of the rainy season, showers are frequent and often heavy. Budget around 366 mm (14 in) of rainfall for the month.
Rainfall in San Antonio in May
As part of the rainy season, San Antonio sees around 19 days of rain in May, with an average of 366 mm (14 in). Rain during the rainy season here tends to be intense rather than just persistent drizzle. Expect significant downpours.
Temperature in San Antonio in May
Expect highs of 26°C (79°F) in San Antonio in May, with nights dropping to around 18°C (64°F). The days can feel warmer than the evenings, so packing for both parts of the day is a good idea. With overnight lows of 18°C (64°F), evenings can feel noticeably cooler than the daytime. An extra layer is a good idea, though the cool air makes for a good night's sleep.
Sunshine in San Antonio in May
The area enjoys a balanced 183 hours of sunlight, ensuring it's neither too rainy nor too sunny.May in San Antonio has its charm. However, if you're seeking pleasant, dry and sunny weather, our weather planner can help you explore other destinations 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 San Antonio's climate page.
San Antonio Temperature in May
Min Temperature
18°C (64°F)
Max Temperature
26°C (79°F)
Chance of Rain
64%
Precipitation
366 mm (14 in)
Rainy days
19 days
Humidity
77% *
Sunshine
183 hours *
Percentage Sunshine
*
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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What to Wear in San Antonio in May
Warm but pleasant conditions in San Antonio 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. Sunglasses could come in handy during the sunnier parts of your trip.What To Do in San Antonio 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 San Antonio's climate page.
Temperature Rainfall Sunshine Humidity
See the full San Antonio climate overview or explore weather in Costa Rica.
