Castro-Urdiales Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Castro-Urdiales.
Climate overview of Castro-Urdiales
Temperatures in Castro-Urdiales, Cantabria, Spain, vary greatly throughout the year. August is the hottest month at 24°C (75°F), while January is the coldest at 13°C (55°F).
The city has a wet climate, receiving around 1186 mm (47 in) of rainfall per year. Despite the high annual total, it has warm summers and mild winters. November is the wettest month. The sunniest month is July, with 6.3 hours of sunshine per day on average.
Castro-Urdiales Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Castro-Urdiales - and find the best time to visit.
Monthly Temperature in Castro-Urdiales
The climate in Castro-Urdiales is known for significant temperature differences throughout the year, making the weather dynamic. On average, daytime temperatures range from a comfortable 24°C (75°F) in August to a moderate 13°C (55°F) in January.
Nighttime temperatures range from 17°C (63°F) in August to 7°C (45°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Castro-Urdiales
Castro-Urdiales has a notably wet climate with abundant precipitation, recording 1186 mm (47 in) of rainfall per year. The seasons in Castro-Urdiales bring significant changes in precipitation. The wettest month, November, receives high rainfall, with an average of 148 mm (5.8 in) of precipitation. This rainfall is distributed across 17 rainy days.
In contrast, the driest month, August, experiences much less rainfall, totaling 61 mm (2.4 in) over 12 rainy days. These distinct seasonal differences provide diverse experiences throughout the year. For more details, please visit our Castro-Urdiales Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Castro-Urdiales
In Castro-Urdiales, summer days are longer and more sunny, with daily sunshine hours peaking at 6.3 hours in July. As the darker season arrives, the brightness of the sun becomes less. December sees a soft sun for only 2.6 hours per average day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Humidity in Castro-Urdiales by Month
The relative humidity is high throughout the year in Castro-Urdiales.
The city experiences its highest humidity in January, reaching 72%. In March, the humidity drops to its lowest level at 68%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Best Time to Visit Castro-Urdiales
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: June, July, August and September
- Warmest weather: July and August
- Most sunshine: June, July and August
- Fewest rainy days: June, July, August and September
- Seasonal pattern: Warm summers and mild winters
Frequently asked questions about the climate in Castro-Urdiales
What is the best time to visit Castro-Urdiales?
June, July, August and September typically offer the most optimal weather in Castro-Urdiales. In contrast, January and February tend to have less optimal conditions. Castro-Urdiales has warm summers and mild winters.
What temperatures can I expect in Castro-Urdiales?
Daytime highs range from 13°C (55°F) in January to 24°C (75°F) in August. Nighttime lows range from 7°C (45°F) to 17°C (63°F). Temperatures vary considerably through the year.
How much rain does Castro-Urdiales get?
Annual rainfall is around 1186 mm (47 in). November is the wettest month with 148 mm (5.8 in), while August is the driest with 61 mm (2.4 in).
How sunny is Castro-Urdiales?
Castro-Urdiales receives around 1,628 hours of sunshine per year. July is the sunniest month with 188 hours, while December is the cloudiest with just 78 hours.
Castro-Urdiales 3-Day Forecast
Castro-Urdiales 3-Day Forecast
Castro-Urdiales on the map
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