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San José weather in May (San José, Costa Rica)

What can you expect from the weather in San José during May? Here's what the weather might have in store during this month.

In May, San José generally has high temperatures and heavy rainfall. Throughout the day, temperatures typically settle at around 25°C. But by evening, they drop to around 17°C.

San José in May falls under the rainy season with heavy rainfall, averaging around 403 mm for the month. When we look at the climate data from the last 30 years, we can expect around 19 days of rain.

The city usually sees around 183 hours of sunlight, indicating a moderately sunny period.

If you're looking for dry conditions and comfortable temperatures, May may not be the ideal month to visit San José. January, February and March generally stand out with the best circumstances. While May, June, July, August, September, October and November tend to showcase less optimal conditions.

For an in-depth look at the yearly conditions, visit our specialized San José climate page with graphs.

 

San José, monthly averages in May

Min TemperatureMin Temperature 17°C  
Max TemperatureMax Temperature 25°C  
Chance of RainChance of Rain 64%  
PrecipitationPrecipitation 403 mm  
Rainy daysRainy days 19 days  
HumidityHumidity 77%  
SunshineSunshine 183 hours  
Percentage SunshinePercentage Sunshine  

Where to go in Costa Rica in May

Find out more about the weather in Costa Rica in May and which places have the best weather conditions in this month.

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Legend perfect weather pleasant tolerable unpleasant poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C and 29°C and not too much precipitation (less than 90 mm a month).

So, what should you wear in San José in May?

For visitors traveling to San José, we recommend wearing layers. So maybe a skirt, t-shirt, shorts for during the day and jeans and a warm jacket for some days and evenings. Bring a rain jacket in case it rains during your stay. Plan on layering your clothes.

What To Do

We rated the following activities from 1 (least suitable) to 10 (best) to do in May.

Swimming
7/10
Camping
6/10

Interested in more climate information?

Weather and Climate provides you with all the information you need about the climate in San José.

Our site offers climate and forecast data for every country in the world. Are you going to Costa Rica? On this website you can find historical weather averages for many cities in Costa Rica. Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal climate conditions. Find out where to go with our weather planner.