Weather in December
Temperature
In Costa Calma, the coldest period comes during January, February and December, when the average high-temperature touches 20°C (68°F).Rainfall
In Costa Calma, during December, the rain falls for 3 days and regularly aggregates up to 18mm (0.71") of precipitation. Throughout the year, in Costa Calma, there are 19 rainfall days, and 93mm (3.66") of precipitation is accumulated.Sea temperature
In December, the average sea temperature in Costa Calma, Spain, is 20°C (68°F).Note: Swimming in water with a temperature of 20°C (68°F) is not a pleasurable experience for the majority. As the temperature falls below 21°C (69.8°F), it becomes increasingly hard to control one's breathing.
Daylight
December has the shortest days of the year in Costa Calma, with an average of 10h and 24min of daylight.On the first day of the month, sunrise is at 07:31 and sunset at 18:00. On the last day of December, in Costa Calma, sunrise is at 07:48 and sunset at 18:11 WET.
Sunshine
December has the least sunshine of the year in Costa Calma, with an average of 6h of sunshine.UV index
The months with the lowest UV index are January and December, with an average maximum UV index of 4. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: The maximum daily UV index of 4 in December converts into the following recommendations:
Put precautions into practice - Ensuring skin and eye safety is a necessity. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. Always opt for UVA and UVB-resistant sunglasses on radiant days.
Frequently asked questions
What part of the year is the coldest in Costa Calma?
What is the usual temperature for Costa Calma in December?
How many days does it rain in December in Costa Calma?
How cold is the water in December in Costa Calma?
What is the month with the shortest days in Costa Calma?
How many hours of daylight does Costa Calma have in December?
When are sunrise and sunset in December in Costa Calma?
What is the month with the least sunshine in Costa Calma?
How many hours of sunshine does Costa Calma have in December?
What is the month with the lowest UV index in Costa Calma?
What is the UV index reading in December in Costa Calma?
Average temperature in December
Costa Calma, Spain
- Average high temperature in December: 20°C
The warmest months (with the highest average high temperature) are July, August and September (27°C).
The months with the lowest average high temperature are January, February and December (20°C).
- Average low temperature in December: 14°C
The months with the highest average low temperature are July, August and September (20°C).
The coldest months (with the lowest average low temperature) are January and February (13°C).
Average rainfall in December
Costa Calma, Spain
- Average rainfall in December: 18mm
The wettest month (with the highest rainfall) is February (19mm).
The driest months (with the least rainfall) are June, July and August (0mm).
Average rainfall days in December
Costa Calma, Spain
- Average rainfall days in December: 3 days
The months with the highest number of rainy days are January, February, November and December (3 days).
The months with the least rainy days are June, July and August (0 days).
Average sea temperature in December
Costa Calma, Spain
- Average sea temperature in December: 20°C
The best month for swimming (with the highest average sea temperature) is September (23°C).
The coldest months (with the lowest average sea temperature) are February and March (18°C).
Average daylight in December /
Average sunshine in December
Costa Calma, Spain
- Average daylight in December: 10h and 2min
The month with the longest days is June (Average daylight: 13h and 54min).
The month with the shortest days is December (Average daylight: 10h and 24min).
- Average sunshine in December: 6h
The months with the most sunshine are May, June, July and August (Average sunshine: 9h).
The month with the least sunshine is December (Average sunshine: 6h).
Average UV index in December
Costa Calma, 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).
Costa Calma, Spain
Weather forecast for your location
2. Allow the app to use your location
