Weather in May
Temperature
During May, San Isidro records an average high-temperature of a pleasant 20°C (68°F), marking a slight divergence from April's 19°C (66.2°F). Throughout the nights in May, San Isidro experiences an average low-temperature of 14°C (57.2°F).Rainfall
In San Isidro, during May, the rain falls for 3 days and regularly aggregates up to 13mm (0.51") of precipitation. Throughout the year, there are 46 rainfall days, and 431mm (16.97") of precipitation is accumulated.Sea temperature
In San Isidro, the average seawater temperature in May is 20°C (68°F).Note: For the majority, swimming in water with a temperature of 20°C (68°F) is not enjoyable. The difficulty in managing breathing rises as the temperature decreases from 21°C (69.8°F) to 15°C (59°F).
Daylight
In May, the average length of the day is 14h and 15min.On the first day of May in San Isidro, sunrise is at 07:06 and sunset at 20:54. On the last day of the month, sunrise is at 06:42 and sunset at 21:20 CEST.
Sunshine
The average sunshine in May is 9h.UV index
The average daily maximum UV index in May is 10. A UV Index of 8 to 10 symbolizes a very high threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: A daily high UV index of 10 in May leads to these guidelines:
Always prioritize safety measures. Rapid harm can befall unprotected skin and eyes. Seek shade and limit direct Sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its peak, but be aware that not all shade structures provide complete sun protection. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Frequently asked questions
What are May temperatures in San Isidro?
How many days does it rain in May in San Isidro?
What is the sea temperature 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?
How high is the UV index in May in San Isidro?
Average temperature in May
San Isidro, Spain
- Average high temperature in May: 20°C
The warmest month (with the highest average high temperature) is August (26°C).
The months with the lowest average high temperature are January, February and December (18°C).
- Average low temperature in May: 14°C
The months with the highest average low temperature are August and September (18°C).
The coldest months (with the lowest average low temperature) are January, February, March and April (12°C).
Average rainfall in May
San Isidro, Spain
- Average rainfall in May: 13mm
The wettest month (with the highest rainfall) is December (77mm).
The driest month (with the least rainfall) is July (1mm).
Average rainfall days in May
San Isidro, Spain
- Average rainfall days in May: 3 days
The months with the highest number of rainy days are November and December (6 days).
The months with the least rainy days are July and August (1 days).
Average sea temperature in May
San Isidro, Spain
- Average sea temperature in May: 20°C
The best months for swimming (with the highest average sea temperature) are August, September and October (23°C).
The coldest months (with the lowest average sea temperature) are January, February, March and April (19°C).
Average daylight in May /
Average sunshine in May
San Isidro, Spain
- Average daylight in May: 14h and 2min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in May: 9h
The month with the most sunshine is July (Average sunshine: 10h).
The months with the least sunshine are January, November and December (Average sunshine: 6h).
Average UV index in May
San Isidro, Spain
- Average UV index in May: 10
The months with the highest UV index are June, July and August (UV index 11).
The months with the lowest UV index are January and December (UV index 4).
San Isidro, Spain
Weather forecast for your location
2. Allow the app to use your location
