Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
Weather in May
Temperature
May brings an average high-temperature of a still warm 24.3°C (75.7°F), nearly identical to the preceding month. During May, San Isidro experiences an average low-temperature of 16.9°C (62.4°F) at night.Humidity
In San Isidro, the average relative humidity in May is 86%.Rainfall
In San Isidro, in May, during 28.7 rainfall days, 369mm (14.53") of precipitation is typically accumulated. In San Isidro, Costa Rica, during the entire year, the rain falls for 287.8 days and collects up to 2585mm (101.77") of precipitation.Daylight
In San Isidro, the average length of the day in May is 12h and 35min.On the first day of the month, sunrise is at 05:18 and sunset at 17:47. On the last day of May, sunrise is at 05:13 and sunset at 17:53 CST.
Sunshine
In San Isidro, the average sunshine in May is 6.9h.UV index
The months with the highest UV index in San Isidro, Costa Rica, are January through December, with an average maximum UV index of 5. The months with the lowest UV index in San Isidro, Costa Rica, are January through December, with an average maximum UV index of 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: In May, the UV index of 5 transforms into the following advice:
Heed the precautions - Protecting the skin and eyes from damage is compulsory. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in May in San Isidro?
What is the average humidity in May in San Isidro?
How many days does it rain in May in San Isidro?
What is the average length of the day in May in San Isidro?
What time are sunrise and sunset in May in San Isidro?
How many hours of sunshine does San Isidro have in May?
What is the month with the highest UV index in San Isidro?
What is the month with the lowest UV index in San Isidro?
How high is the UV index in May in San Isidro?
Average temperature in May
San Isidro, Costa Rica
- Average high temperature in May: 24.3°C
The warmest month (with the highest average high temperature) is April (26°C).
The month with the lowest average high temperature is October (22.4°C).
- Average low temperature in May: 16.9°C
The month with the highest average low temperature is June (17°C).
The coldest month (with the lowest average low temperature) is January (13.8°C).
Average pressure in May
San Isidro, Costa Rica
- Average pressure in May: 1011.2mbar
The month with the highest atmospheric pressure is January (1012.3mbar).
The month with the lowest atmospheric pressure is October (1010.8mbar).
Average wind speed in May
San Isidro, Costa Rica
- Average wind speed in May: 5.1km/h
The windiest month (with the highest average wind speed) is February (10.7km/h).
The calmest month (with the lowest average wind speed) is September (4.3km/h).
Average humidity in May
San Isidro, Costa Rica
- Average humidity in May: 86%
The months with the highest relative humidity are September and October (91%).
The months with the lowest relative humidity are February and March (75%).
Average rainfall in May
San Isidro, Costa Rica
- Average rainfall in May: 369mm
The wettest month (with the highest rainfall) is October (438mm).
The driest month (with the least rainfall) is February (26mm).
Average rainfall days in May
San Isidro, Costa Rica
- Average rainfall days in May: 28.7 days
The month with the highest number of rainy days is October (30.5 days).
The month with the least rainy days is February (12.2 days).
Average daylight in May /
Average sunshine in May
San Isidro, Costa Rica
- Average daylight in May: 12h and 4min
The month with the longest days is June (Average daylight: 12h and 42min).
The month with the shortest days is December (Average daylight: 11h and 36min).
- Average sunshine in May: 6h and 5min
The month with the most sunshine is February (Average sunshine: 9h and 12min).
The month with the least sunshine is October (Average sunshine: 5h and 48min).
Average sunshine days in May
San Isidro, Costa Rica
- Average sunshine days in May: 1.8 days
The month with the most sunshine days is March (13.5 days).
The month with the least sunshine days is September (0.1 days).
Average UV index in May
San Isidro, Costa Rica
- Average UV index in May: 5
The months with the highest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 5).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 5).
Average cloud cover in May
San Isidro, Costa Rica
- Average cloud cover in May: 59
The month with the most cloud cover is October (Cloud cover 68).
The month with the least cloud cover is February (Cloud cover 30).
Average visibility in May
San Isidro, Costa Rica
- Average visibility in May: 7km
The months with the highest visibility are January, February and March (9km).
The months with the lowest visibility are August, September, October and November (6km).
San Isidro, Costa Rica
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