Contents
- Weather in April
- Frequently asked questions
- Average temperature in April
- Average pressure in April
- Average wind speed in April
- Average humidity in April
- Average rainfall in April
- Average rainfall days in April
- Average snowfall in April
- Average snowfall days in April
- Average sea temperature in April
- Average daylight in April
- Average sunshine in April
- Average sunshine days in April
- Average UV index in April
- Average cloud cover in April
- Average visibility in April
Weather in April
Temperature
April's advent notes a subtle adjustment in average high-temperature to a still refreshing 14.8°C (58.6°F) from March. During April nights, Castro Urdiales witnesses a consistent average temperature of 9.7°C (49.5°F).Humidity
In Castro Urdiales, Spain, the average relative humidity in April is 77%.Rainfall
In Castro Urdiales, in April, during 19.1 rainfall days, 51mm (2.01") of precipitation is typically accumulated. In Castro Urdiales, during the entire year, the rain falls for 207.3 days and collects up to 710mm (27.95") of precipitation.Snowfall
April through November are months without snowfall.Sea temperature
In Castro Urdiales, Spain, in April, the average water temperature is 13.9°C (57°F).Note: Dipping into 13.9°C (57°F) below 10°C (50°F) is possible with the right protection; absent that, anticipate cold shock and hampered breathing. Swimming momentarily at 13°C (55.4°F) can be jarring.
Daylight
The average length of the day in April in Castro Urdiales is 13h and 26min.On the first day of the month, sunrise is at 07:53 and sunset at 20:39. On the last day of April, in Castro Urdiales, sunrise is at 07:06 and sunset at 21:13 CEST.
Sunshine
In Castro Urdiales, the average sunshine in April is 7.4h.UV index
January through April, November and December, with an average maximum UV index of 3, are months with the lowest UV index. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: During April, 3 as the daily maximum UV index converts into the following advice:
Undertake protective steps - Preventing sun damage is advised. To guard against the harmful effects of the Sun, minimize exposure during midday. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
Frequently asked questions
What are April temperatures in Castro Urdiales?
What is the average humidity in April in Castro Urdiales?
How many days does it rain in April in Castro Urdiales?
When it does not snow in Castro Urdiales?
Does it snow in Castro Urdiales in April?
What is the water temperature in April in Castro Urdiales?
What is the average length of the day in April in Castro Urdiales?
When are sunrise and sunset in April in Castro Urdiales?
How long on average sun shines in April in Castro Urdiales?
When is the lowest UV index in Castro Urdiales?
How high is the UV index in April in Castro Urdiales?
Average temperature in April
Castro Urdiales, Spain
- Average high temperature in April: 14.8°C
The warmest month (with the highest average high temperature) is August (23°C).
The month with the lowest average high temperature is January (10.8°C).
- Average low temperature in April: 9.7°C
The month with the highest average low temperature is August (17.3°C).
The coldest month (with the lowest average low temperature) is February (7.1°C).
Average pressure in April
Castro Urdiales, Spain
- Average pressure in April: 1015.6mbar
The month with the highest atmospheric pressure is December (1021.7mbar).
The month with the lowest atmospheric pressure is April (1015.6mbar).
Average wind speed in April
Castro Urdiales, Spain
- Average wind speed in April: 13.6km/h
The windiest month (with the highest average wind speed) is February (17.8km/h).
The calmest month (with the lowest average wind speed) is August (10.3km/h).
Average humidity in April
Castro Urdiales, Spain
- Average humidity in April: 77%
The month with the highest relative humidity is June (79%).
The month with the lowest relative humidity is October (72%).
Average rainfall in April
Castro Urdiales, Spain
- Average rainfall in April: 51mm
The wettest month (with the highest rainfall) is November (115mm).
The driest months (with the least rainfall) are July and August (36mm).
Average rainfall days in April
Castro Urdiales, Spain
- Average rainfall days in April: 19.1 days
The month with the highest number of rainy days is November (19.7 days).
The month with the least rainy days is October (14.5 days).
Average snowfall in April
Castro Urdiales, Spain
- Average snowfall in April: 0mm
The month with the highest snowfall is February (23mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in April
Castro Urdiales, Spain
- Average snowfall days in April: 0 days
The month with the highest number of snowfall days is February (1.4 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average sea temperature in April
Castro Urdiales, Spain
- Average sea temperature in April: 13.9°C
The best month for swimming (with the highest average sea temperature) is August (21.2°C).
The coldest month (with the lowest average sea temperature) is February (12.7°C).
Average daylight in April /
Average sunshine in April
Castro Urdiales, Spain
- Average daylight in April: 13h and 2min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in April: 7h and 2min
The months with the most sunshine are June and July (Average sunshine: 9h and 24min).
The month with the least sunshine is November (Average sunshine: 5h and 12min).
Average sunshine days in April
Castro Urdiales, Spain
- Average sunshine days in April: 8.2 days
The month with the most sunshine days is October (13.3 days).
The month with the least sunshine days is November (8.1 days).
Average UV index in April
Castro Urdiales, Spain
- Average UV index in April: 3
The months with the highest UV index are May, June, July, August and September (UV index 5).
The months with the lowest UV index are January, February, March, April, November and December (UV index 3).
Average cloud cover in April
Castro Urdiales, Spain
- Average cloud cover in April: 43
The month with the most cloud cover is January (Cloud cover 51).
The months with the least cloud cover are September and October (Cloud cover 34).
Average visibility in April
Castro Urdiales, Spain
- Average visibility in April: 10km
The months with the highest visibility are February, March, April, June, July, August, September, October and December (10km).
The months with the lowest visibility are January, May and November (9km).
Castro Urdiales, Spain
Weather forecast for your location
2. Allow the app to use your location
