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Costa RicaThe weather in May in San Luis
It's warm in May in San Luis 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.
Looking for sun? May isn’t a good month to be in San Luis. The temperature is nice, but there’s too much chance of rain.
Average temperatures and precipitation
This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in May for San Luis, Costa Rica. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.
Temperature records
With 32°C in 2017, San Luis reached the highest temperature in May over the past 10 years. The lowest daytime temperature in this month was 22°C in 2019. The extreme nighttime temperatures ranged from a lowest recorded value of 16°C to a highest value of 23°C.
Rainfall amount
In May, there is an average of 272 mm of precipitation, spread over 24 days. The wind speed is around 4 Bft, mostly coming from the Southeast.
Daily weather in May for San Luis
Click on any day in May to get detailed info about the usual weather on that day in San Luis. Check out the historical temperatures and precipitation over the past 10 years on this day.
May weather comparison
| San Luis | New York | |
|---|---|---|
| Average temperature | 28°C | 22°C |
| Max. temperature | 29°C | 28°C |
| Min. temperature | 19°C | -5°C |
| Total precipitation | 272 mm | 105 mm |
| Rainy days | 24 days | 14 days |
Start of May
The month of May starts in San Luis with hot temps, averaging around 29°C during the day and nights around 21°C.
Mid May
By mid-May, daytime temps stay steady at around 29°C, with nights around 21°C. There’s a high chance of precipitation during this time.
End of May
By the end of May, the average daytime temperature in San Luis is around 28°C, while nighttime temps are about 21°C. There’s a significant chance of many days with precipitation.
Find affordable trips to San Luis
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.
The hurricane season in San Luis runs from June to November.
Check out the climate of San Luis for all months and discover the best travel time
Temperature charts
These charts show the average temperatures in May in San Luis, Costa Rica. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Daily Temperature in May in San Luis
Temperature in May in San Luis over the years
Precipitation charts
These charts show the average amount of precipitation in May in San Luis, Costa Rica. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.
Daily Precipitation in May in San Luis
Total precipitation in May in San Luis over the years
Daily UV index in May in San Luis
This chart shows the average daily UV index in May in San Luis, 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.
Weather experiences in May in San Luis
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Average weather in San Luis by month
Click on a month below to see detailed weather info for San Luis. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.