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Sea Temperature in Castro Urdiales in July
Complete information on the sea temperature range in the Bay of Biscay in Castro Urdiales in July. Historical daily data. Climate details for July. Tips on swimming conditions and beach relaxation in Castro Urdiales. We find every spot where you can swim and tell you what the water temperature is there today and throughout the year.
Water Temperature Range in Castro Urdiales in July
17°C
MINIMUN
20°C
AVERAGE
23°C
MAXIMUM
Historical Data of Water Temperature in July in Castro Urdiales
Water Temperature Chart for Bay of Biscay in Castro Urdiales in July
Sea Temperature Table in Castro Urdiales in July Over the Past Years
Day | 2024 | 2023 | 2022 | Average |
---|---|---|---|---|
Jul 1 | 18°C | 20°C | 17°C | 18.8°C |
Jul 2 | 19°C | 20°C | 17°C | 19.0°C |
Jul 3 | 19°C | 21°C | 18°C | 19.5°C |
Jul 4 | 18°C | 20°C | 18°C | 19.0°C |
Jul 5 | 20°C | 20°C | 18°C | 19.3°C |
Jul 6 | 19°C | 20°C | 18°C | 19.3°C |
Jul 7 | 19°C | 20°C | 18°C | 19.3°C |
Jul 8 | 19°C | 21°C | 19°C | 19.8°C |
Jul 9 | 19°C | 21°C | 19°C | 19.5°C |
Jul 10 | 19°C | 21°C | 19°C | 19.8°C |
Jul 11 | 19°C | 21°C | 19°C | 20.0°C |
Jul 12 | 19°C | 21°C | 19°C | 20.0°C |
Jul 13 | 19°C | 21°C | 20°C | 20.3°C |
Jul 14 | 19°C | 22°C | 20°C | 20.3°C |
Jul 15 | 20°C | 21°C | 20°C | 20.5°C |
Jul 16 | 20°C | 21°C | 20°C | 20.5°C |
Jul 17 | 20°C | 21°C | 20°C | 20.3°C |
Jul 18 | 20°C | 22°C | 21°C | 21.0°C |
Jul 19 | 20°C | 22°C | 21°C | 21.0°C |
Jul 20 | 20°C | 22°C | 21°C | 21.0°C |
Jul 21 | 21°C | 22°C | 21°C | 21.5°C |
Jul 22 | 22°C | 22°C | 21°C | 21.8°C |
Jul 23 | 22°C | 22°C | 22°C | 21.8°C |
Jul 24 | 21°C | 23°C | 22°C | 21.8°C |
Jul 25 | 21°C | 22°C | 22°C | 21.5°C |
Jul 26 | 21°C | 23°C | 22°C | 21.8°C |
Jul 27 | 20°C | 23°C | 22°C | 21.5°C |
Jul 28 | 20°C | 23°C | 23°C | 21.8°C |
Jul 29 | 22°C | 23°C | 23°C | 22.3°C |
Jul 30 | 21°C | 23°C | 23°C | 22.0°C |
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

Castro Urdiales Climate and Swimming Opportunities in July
24°C
Average Day Air Temperature
17°C
Average Night Air Temperature
49 mm
Precipitation Amount per Month
9 days
Number of Rainy Days
15 hrs
Daylight
per Day
7 hrs
Sunshine
per Day
11 km/h
Average Wind Speed
76%
Average
humidity
Castro Urdiales lies within the Cantabria in Spain. The average daytime temperature in Castro Urdiales in July is 24°C (75°F), while the nighttime average is 17°C (63°F). There are typically nine rainy days during the month, with a total precipitation of 49 mm (1.9 inches). The daylight duration in July in Castro Urdiales is 15 hours, with an average of 7 hours of sunshine per day. The average wind speed in July is 11 km/h (7 mph), and the humidity level is around 76%.
The water temperature in Castro Urdiales in July ranges from 18°C to 22°C (64°F to 72°F). At the beginning of the month, the average temperature is around 19°C (66°F), shifting to 20°C (68°F) by mid-July and reaching 22°C (72°F) in the last ten days. Overall, the average sea temperature in Castro Urdiales for July is 20°C (68°F). Very comfortable swimming conditions. The water is fresh but not too cold, and the air temperature is pleasant.
Sea Temperature in July in Nearby Cities
Frequently Asked Questions About Water Temperatures in July in Castro Urdiales
What is the sea temperature in Castro Urdiales in July?
The water temperature in the Bay of Biscay in Castro Urdiales in July ranges from 18°C to 22°C (64°F to 72°F).
Is it possible to swim in the Bay of Biscay in Castro Urdiales in July?
The average sea temperature in Castro Urdiales in July is 20°C (68°F), and the air temperature is 24°C (75°F), so very comfortable swimming conditions. The water is fresh but not too cold, and the air temperature is pleasant.