Weather in December
Temperature
San Isidro experiences the lowest of its temperatures in January, February and December, when the average high-temperatures rise to 18°C (64.4°F).Rainfall
December is the month with the most rainfall. Rain falls for 6 days and accumulates 77mm (3.03") of precipitation.Sea temperature
In December, the average sea temperature in San Isidro is 20°C (68°F).Note: The majority of individuals do not enjoy swimming in water that is 20°C (68°F). Breathing control becomes more challenging as the water temperature dips from 21°C (69.8°F) to 15°C (59°F).
Daylight
With an average of 9h and 36min of daylight, December has the shortest days of the year.On the first day of December in San Isidro, sunrise is at 08:01 and sunset at 17:43. On the last day of the month, sunrise is at 08:19 and sunset at 17:53 CET.
Sunshine
January, November and December, with an average of 6h of sunshine, are months with the least sunshine.UV index
January and December, with an average maximum UV index of 4, are months with the lowest UV index in San Isidro. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for the average person.Note: The daily maximum UV index of 4 in December interprets into the following advice:
Exercise prevention - Warding off sunburn is urged. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.
Frequently asked questions
What is the coldest time of year in San Isidro?
What is the usual temperature for San Isidro in December?
What is the wettest month in San Isidro?
How much does it rain in San Isidro in December?
What is the sea temperature in December in San Isidro?
What is the month with the shortest days in San Isidro?
How many hours of daylight does San Isidro have in December?
When are sunrise and sunset in December in San Isidro?
What are the months with the least sunshine in San Isidro?
How many hours of sunshine does San Isidro have in December?
When is the lowest UV index in San Isidro?
What is the UV index reading in December in San Isidro?
Average temperature in December
San Isidro, Spain
- Average high temperature in December: 18°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 December: 13°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 December
San Isidro, Spain
- Average rainfall in December: 77mm
The wettest month (with the highest rainfall) is December (77mm).
The driest month (with the least rainfall) is July (1mm).
Average rainfall days in December
San Isidro, Spain
- Average rainfall days in December: 6 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 December
San Isidro, Spain
- Average sea temperature in December: 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 December /
Average sunshine in December
San Isidro, Spain
- Average daylight in December: 9h and 4min
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 December: 6h
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 December
San Isidro, Spain
- Average UV index in December: 4
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
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