Normal weather for Costa Rica in May
It's warm in May in Costa Rica with an average temperature of 28°C. Temperatures this month range from a low of 27°C to a high of 29°C. At night, you can expect temperatures between 19°C and 21°C.
In May, there is an average of 273 mm of precipitation, spread over 24 days. The wind speed is around 4 Bft, mostly coming from the Southeast.
Costa Rica in May |
New York | ||
|---|---|---|---|
 Average Temperature |
28°C | 22°C | |
 High Temp |
29°C | 28°C | |
| Low Temp |
27°C | 17°C | |
 Total Precipitation |
273 mm | 105 mm | |
| Rainy Days |
24 days | 14 days | |
Start of May
The month of May starts in Costa Rica with hot temps, averaging around 29°C during the day and nights around 21°C. There are plenty of days with a good chance of precipitation.
With the temperature difference between day and night, it’s smart to wear layers. For the daytime, light clothing like shorts or a dress, and a hat and sunglasses are perfect. In the evening and morning, a T-shirt, light pants or skirt, and a light jacket are ideal.
Mid May
By mid-May, daytime temps drop to around 28°C, with nights around 21°C. There’s a high chance of precipitation during this time.
Since it cools down at night, it’s a good idea to wear layers. For the daytime, light clothing like shorts or a dress, and a hat and sunglasses are perfect. In the evening and morning, a T-shirt, light pants or skirt, and a light jacket are ideal.
End of May
By the end of May, the average daytime temperature in Costa Rica is around 28°C, while nighttime temps are about 20°C. There’s a significant chance of many days with precipitation.
Because temperatures drop in the evening, wearing layers is recommended. For the daytime, light clothing like shorts or a dress, and a hat and sunglasses are perfect. In the evening and morning, a T-shirt, light pants or skirt, and a light jacket are ideal.
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UV index
The UV index is a maximum of 9 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.
Is May a good time to visit Costa Rica?
Looking for sun? May isn’t a good month to be in Costa Rica. The temperature is nice, but there’s too much chance of rain.
The hurricane season in Costa Rica runs from June to November.
Temperature records for Costa Rica in May
Check out the climate of Costa Rica for all months and discover the best travel time
The climate in Costa Rica is based on weather data from San José. Other spots might have different weather. You can check out all destinations in Costa Rica to get the full picture of the climate.
April
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Daily Temperature in May in Costa Rica
This chart shows the average daily high and low temperatures in May for Costa Rica, in degrees Celsius. The red line represents the highs, and the blue line shows the lows. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, provide the average temperatures for this month.
Daily Precipitation in May in Costa Rica
The chart below shows the average daily precipitation in May for Costa Rica, measured in millimeters over the past few years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are listed at the bottom of the chart.
A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that it rained more often. But remember, it’s just an average, and every day can be different. Based on historical weather data for May, you can expect about 24 days of precipitation in Costa Rica.
Daily UV Index in May in Costa Rica
This chart shows the average daily UV index in May in Costa Rica, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Temperature in May in Costa Rica Over the Years
This chart shows the average temperature in May in Costa Rica, measured in degrees Celsius, over the past few years.
Total Precipitation in May in Costa Rica Over the Years
This chart shows the average precipitation in May in Costa Rica, measured in millimeters over the past years. Precipitation is always measured as water, whether it’s snow or hail.
Daily Climate in May for Costa Rica
Click on any day in May to get detailed info about the usual weather on that day in Costa Rica. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in May in Costa Rica
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Average Weather in Costa Rica by Month
Click on a month below to see detailed weather info for Costa Rica. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
Or check out the climate of Costa Rica for all months at once
