Temperatures in May
It's warm in May in San José with an average temperature of 27°C. Temperatures this month range from a low of 24°C to a high of 30°C. At night, you can expect temperatures between 12°C and 16°C.
Max and Min Temperatures per Day
This chart shows the daily maximum and minimum temperatures in degrees Celsius for San José in May. The red line indicates the max temperatures, and the blue line shows the minimums.
Start of May
The month of May starts in San José with hot temperatures, averaging around 27°C during the day and nights close to 14°C. There’s little chance of precipitation. The weather is mostly sunny and dry.
Since temperatures can differ between day and night, it’s a good idea to dress in layers.
Mid-May
By mid-May, the average daytime temperature rises to around 28°C, with nights close to 15°C. Not much precipitation expected during this period. It’s mostly dry with sunshine.
Temperatures vary between day and night, so it’s smart to wear layers.
End of May
By the end of May, the average daytime temperature in San José will be around 28°C, with nights close to 15°C. Barely any chance of precipitation. The weather will mostly be dry with lots of sunshine.
As it gets cooler in the evening, it’s best to wear layers.
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Precipitation in May
In May, there is an average of 31 mm of precipitation, spread over 4 days. The wind speed is around 3 Bft, mostly coming from the Southwest.
The precipitation chance averages 13% per day this month. Though that seems low, there are also a few days with a higher chance of precipitation.
Precipitation Chance
This chart shows the daily precipitation chance (in percentages) in May for San José. 0% means it never rained on that day in the past 10 years, and 100% means it rained every day. All values in between represent the average chance of precipitation on that day.
San José in May |
London | ||
|---|---|---|---|
 Average Temperature |
27°C | 18°C | |
 High Temp |
30°C | 21°C | |
| Low Temp |
24°C | 15°C | |
 Total Precipitation |
31 mm | 46 mm | |
| Rainy Days |
4 days | 8 days | |
April
UV index
The UV index is a maximum of 10 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 San José?
Want nice weather? Then May is a great time to be in San José. You’ll have pleasant temperatures and not too much rain this month.
Temperature records for San José in May
With 40°C, San José hit the highest temperature in the last 10 years in May 2022. The lowest daytime temperature in this month was 11°C in 2018. The extreme night temperatures ranged from a low of 5°C to a high of 28°C.
Check out the climate of San José for all months and discover the best travel time
Curious about the climate in other parts of Spain? Check out the weather and climate in places like Ibiza, Majorca, Tenerife, or have a look at other destinations in Spain.
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Daily Temperature in May in San José
This chart shows the average daily temperatures, both day and night, for each day in May in San José, measured in degrees Celsius. The red line represents the maximum temperatures, while the blue line shows the minimums. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, gives an overview of the average daily temperatures during this month.
Daily Precipitation in May in San José
The chart below shows the average daily precipitation in May for San José, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are shown 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 rain is more likely. But it’s still an average, so each day can be different. Based on historical weather data for May, you can expect around 4 days of rain in San José.
Daily UV Index in May in San José
This chart shows the average daily UV index in May in San José, 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 San José Over the Years
This chart shows the average temperature in May in San José, measured in degrees Celsius, over the past years.
Total Precipitation in May in San José Over the Years
This chart shows the average precipitation in May in San José, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail.
Daily climate in May for San José
Click on a specific day in May for detailed info on the typical weather on that day in San José. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in May in San José
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Average Weather in San José by Month
Click on a month below to see detailed weather info for San José. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
