January weather forecast
Castellón de la Plana, Spain

In the first month of the year, Castellón de la Plana typically experiences a mild climate with no significant fluctuations in temperature. Sea temperatures remain constant from 14°C (57.2°F) offering limited comfort for swimmers. The chill in the wind might be noticed, particularly during the evening. January weather shows humidity levels averaging at 67%, maintaining a relatively dry environment. Sparse rainfall days and short daylight hours characterize the climatic pattern of this period.

Temperature

January stands out as Castellón de la Plana's coldest month, with temperatures ranging between an average high of 15.3°C (59.5°F) and a low of 5.8°C (42.4°F).

Humidity

In January, the average relative humidity in Castellón de la Plana is 67%.

Rainfall

In January, in Castellón de la Plana, Spain, the rain falls for 4 days. Throughout January, 36mm (1.42") of precipitation is accumulated. In Castellón de la Plana, Spain, during the entire year, the rain falls for 45 days and collects up to 468mm (18.43") of precipitation.

Sea temperature

In Castellón de la Plana, the average seawater temperature in January is 14°C (57.2°F).
Note: It is life-risking to swim in 14°C (57.2°F). Briefly staying in 13°C (55.4°F) waters feels unsettling, and temperatures below 10°C (50°F) might result in cold shock and loss of breath control, hinging on personal endurance.

Daylight

The average length of the day in January is 9h and 43min.
On the first day of the month, sunrise is at 08:21 and sunset at 17:45. On the last day of January, sunrise is at 08:09 and sunset at 18:17 CET.

Sunshine

In Castellón de la Plana, the average sunshine in January is 5.8h.

UV index

January, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for the average person.
Note: In January, a daily UV index of 2 turns into the following recommendations:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.