December weather forecast and climate
Castellón de la Plana, Spain

A night shot of the Fadri Tower, and the Gothic Cathedral in Castellón de la Plana, Spain
A night shot of the Fadri Tower, and the Gothic Cathedral in Castellón de la Plana, Spain
The first month of the winter, December, is also a mild month in Castellón de la Plana, Spain, with average temperature fluctuating between 7°C (44.6°F) and 15.8°C (60.4°F).

Temperature

The average high-temperature, is 15.8°C (60.4°F), while the average low-temperature is 7°C (44.6°F).

Humidity

The average relative humidity in Castellón de la Plana is 68%.

Rainfall

In Castellón de la Plana, during December, the rain falls for 4 days and regularly aggregates up to 42mm (1.7") of precipitation. Throughout the year, in Castellón de la Plana, there are 45 rainfall days, and 468mm (18.4") of precipitation is accumulated.

Sea temperature

In Castellón de la Plana, in December, the average water temperature is 15.9°C (60.6°F). For most, swimming in 15.9°C (60.6°F) is not an enjoyable activity. Furthermore, controlling your breathing becomes progressively more difficult as the water temperature decreases from 21°C (69.8°F) to 15°C (59°F).

Daylight

December has the shortest days of the year, with an average of 9.4h of daylight.

Sunshine

December has the least sunshine of the year, with an average of 5.3h of sunshine.

UV index

Months with the lowest UV index in Castellón de la Plana are January, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from the exposure to the Sun's UV radiation for average individuals.
The average daily UV index of 2 transform into the following instructions:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.

What is the temperature in December in Castellón de la Plana?

In December, in Castellón de la Plana, Spain, the average high-temperature is 15.8°C (60.4°F), and the average low-temperature is 7°C (44.6°F).

What is the average humidity in December in Castellón de la Plana?

In December, the average relative humidity in Castellón de la Plana, Spain, is 68%.

How many days does it rain in December in Castellón de la Plana?

In Castellón de la Plana, Spain, during December, the rain falls for 4 days and regularly aggregates up to 42mm (1.7") of precipitation.

How cold is the water in December in Castellón de la Plana?

In Castellón de la Plana, Spain, the average seawater temperature in December is 15.9°C (60.6°F). For swimming, a surface water temperature of 15.9°C (60.6°F) is not enjoyable for the majority. It is not considered safe, as controlling breathing becomes progressively more difficult as water temperature decreases below 21°C (69.8°F).

What is the month with the shortest days in Castellón de la Plana?

December has the shortest days of the year in Castellón de la Plana, Spain, with an average of 9.4h of daylight.

How many hours of daylight does Castellón de la Plana have in December?

In December, the average length of the day in Castellón de la Plana, Spain, is 9.4h.

What is the month with the least sunshine in Castellón de la Plana?

The month with the least sunshine in Castellón de la Plana is December, with an average of 5.3h of sunshine.

How long on average sun shines in December in Castellón de la Plana?

In Castellón de la Plana, Spain, the average sunshine in December is 5.3h.

When is the lowest UV index in Castellón de la Plana?

Months with the lowest UV index in Castellón de la Plana, Spain, are January, November and December, with an average maximum UV index of 2.

What is the UV index intensity in December in Castellón de la Plana?

In December, the average daily maximum UV index is 2. A UV Index of 2, and less, symbolizes a low health threat from the exposure to the Sun's UV rays.
Average temperature in December - Castellón de la Plana, Spain
  • Average high temperature in December: 15.8°C

The warmest month (with the highest average high temperature) is August (30.3°C).
The month with the lowest average high temperature is January (15.3°C).

  • Average low temperature in December: 7°C

The month with the highest average low temperature is August (20.9°C).
The coldest month (with the lowest average low temperature) is January (5.8°C).

Average humidity in December - Castellón de la Plana, Spain
  • Average humidity in December: 68%

The month with the highest relative humidity is October (69%).
Months with the lowest relative humidity are April, May and June (63%).

Average rainfall in December - Castellón de la Plana, Spain
  • Average rainfall in December: 42mm

The wettest month (with the highest rainfall) is September (71mm).
The driest month (with the lowest rainfall) is July (9mm).

Average rainfall days in December - Castellón de la Plana, Spain
  • Average rainfall days in December: 4 days

Months with the highest number of rainy days are April, May, September and October (5 days).
The month with the lowest number of rainy days is July (1 days).

Average sea temperature in December - Castellón de la Plana, Spain
  • Average sea temperature in December: 15.9°C

The best month for swimming (with the highest average sea temperature) is August (25.5°C).
The coldest month (with the lowest average sea temperature) is February (13.7°C).

Average daylight in December / Average sunshine in December - Castellón de la Plana, Spain
  • Average daylight in December: 9.4h

The month with the longest days is June (Average daylight: 15h).
The month with shortest days is December (Average daylight: 9.4h).

  • Average sunshine in December: 5.3h

The month with most sunshine is July (Average sunshine: 10.6h).
The month with least sunshine is December (Average sunshine: 5.3h).

Average UV index in December - Castellón de la Plana, Spain
  • Average UV index in December: 2

Months with the highest UV index are June and July (UV index 9).
Months with the lowest UV index are January, November and December (UV index 2).

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