Weather in Castellón de la Plana

Planning your visit to Castellón de la Plana? Check out the latest meteorological updates, detailed forecasts, and charts to be prepared for any weather conditions.

Castellón de la Plana is characterized by a mild Mediterranean climate, making this city a comfortable travel destination almost all year round. The weather here is notable for its stability: you will not encounter extreme frosts in winter or exhausting humidity, as the proximity to the sea creates a pleasant temperature balance.

Seasons transition smoothly. Summer here is truly warm and sunny: in peak months, such as July and August, the average temperature holds at 25°C, while daytime air often warms up to 29–30°C. Winter is very mild, with averages around 10–11°C; even on the coldest January nights, the temperature rarely drops below 5°C, allowing you to enjoy walks without heavy winter clothing.

Regarding precipitation, the climate can be described as quite dry, although brief periods of rain are possible during the off-season. The highest number of wet days (up to 9–11 per month) usually falls in spring and early autumn, especially September. However, even during this time, rains typically do not last long, giving way to clear skies, which makes Castellón de la Plana an excellent choice for lovers of sunny weather.

The climate in Castellón de la Plana is typical of Spain's Mediterranean coast: mild weather prevails for most of the year, without extreme cold. The coolest month is traditionally January with an average temperature of about 9.7°C. Winters here are very gentle: even on the coldest nights of January and February, the thermometer rarely drops below 5-6°C, and during the day the air often warms up to a comfortable 14-15°C, allowing you to enjoy walks around the city without heavy winter wear.

The summer season brings confident warmth, reaching its peak in July and August. August is considered the hottest month: the average daily maximum is around 29.9°C, which is ideal for a beach holiday but is not exhausting heat. Nights at the height of summer remain truly warm, with temperatures above 20°C, creating an atmosphere of "tropical nights". June and September offer "velvet" conditions with average highs of about 26°C, when the summer heat feels much softer.

In transitional seasons, such as May and October, the weather delights with pleasant warmth with daily figures in the region of 22-23°C. Travellers should take into account daily temperature fluctuations: the difference between the daily maximum and nightly minimum throughout the year is consistently about 9-10 degrees. This means that after a sunny spring or autumn day, the evening can bring noticeable freshness, so having a light jacket or jumper in your luggage will be very handy.

Castellón de la Plana features a typical Mediterranean climate with little rainfall throughout the year. Overall, the city can be called sunny and quite dry, making it attractive to visit in almost any season. Prolonged downpours here are a rarity, and the total volume of precipitation remains low even during statistically wetter periods.

The highest probability of precipitation is observed in early autumn and spring. The "wettest" month is considered September, when about 11 rainy days are recorded, and the precipitation level reaches its annual maximum (averaging 3 mm). Spring months, from March to May, can also bring variable cloudiness: during this period, rains occur about 9 days a month, however, they are generally short-lived.

Winter and mid-summer are the driest seasons. In January, December, and July, the number of days with precipitation is minimal — from 3 to 4 days per month. Given that winter temperatures in the city rarely drop to critical levels, snow here is an exceptional phenomenon; precipitation in the cold season falls predominantly in the form of rain.

When packing for Castellón de la Plana in summer, rely on light and breathable clothing made from natural fabrics, such as cotton or linen, to comfortably endure the heat reaching +30°C. Be sure to put a hat, quality sunglasses, and cream with a high UV protection factor in your suitcase, as the sun here is very active. Comfortable sandals or light trainers are ideal for long walks around the city and along the promenade.

If your trip falls during the winter months or the off-season, the best solution will be the principle of layering in your wardrobe. Although winters here are mild and the temperature rarely drops below +5°C, evenings can be cool, so you will need jeans, a jumper, and a mid-season jacket or windbreaker. This set will allow you to easily adapt to temperature changes throughout the day, removing or putting on an extra layer of clothing as necessary.

In spring and early autumn, especially in September, the likelihood of rain increases, so a compact umbrella or a light raincoat will be a useful addition to your luggage. At any time of the year, the main priority should remain comfortable, proven flat-soled shoes, as exploring the city involves a lot of walking.