May weather forecastCastellón de la Plana, Spain

Weather in May

May in Castellón de la Plana witnesses a further rise in temperature highs, signaling the arrival of summer. With sea temperatures reaching up to 18.7°C (65.7°F), beach activities become increasingly pleasant. The weather promotes outdoor enjoyment with 14.4 hours of daylight and nearly 9 hours of sunshine. Unchanged humidity levels and very moderate rainfall conditions ensure a warm and somewhat dry climate. Despite a slight increase in rainfall quantity, the number of rainfall days remains constant.

Temperature

May is marked by an average high-temperature of a warm 23.4°C (74.1°F), almost identical to the preceding month. The low-temperature averages to a moderate 13.6°C (56.5°F) during the nights of May.

Humidity

The months with the lowest humidity are April through June, with an average relative humidity of 63%.

Rainfall

In Castellón de la Plana, in May, during 5 rainfall days, 44mm (1.73") of precipitation is typically accumulated. In Castellón de la Plana, during the entire year, the rain falls for 45 days and collects up to 468mm (18.43") of precipitation.

Sea temperature

In May, the average sea temperature is 18.7°C (65.7°F).
Note: The majority of people find swimming in 18.7°C (65.7°F) unenjoyable. As the water temperature decreases from 21°C (69.8°F) to 15°C (59°F), breathing becomes more challenging to control.

Daylight

The average length of the day in May in Castellón de la Plana is 14h and 24min.
On the first day of the month, sunrise is at 06:59 and sunset at 20:55. On the last day of May, sunrise is at 06:33 and sunset at 21:22 CEST.

Sunshine

In Castellón de la Plana, the average sunshine in May is 8.8h.

UV index

The average daily maximum UV index in May is 8. A UV Index estimate of 8 to 10 represents a very high health vulnerability from exposure to the Sun's UV rays for average individuals.
Note: The daily high UV index of 8 during May translates into the following recommendations:
Be sure to take precautions. Without protection, skin might suffer damage quickly. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.