December weather forecastErmua, Spain
December
Weather in December
The first month of the winter, December, is also a fresh month in Ermua, Spain, with an average temperature varying between 8.1°C (46.6°F) and 12.2°C (54°F).Temperature
The advent of December sees the average high-temperature at a cool 12.2°C (54°F), subtly shifted from November's 14.5°C (58.1°F). Throughout December, Ermua records a steady low-temperature average of 8.1°C (46.6°F), a minor decrease from its daytime counterpart.Humidity
In Ermua, the average relative humidity in December is 75%.Rainfall
In Ermua, in December, during 16.5 rainfall days, 54mm (2.13") of precipitation is typically accumulated. In Ermua, during the entire year, the rain falls for 198.1 days and collects up to 634mm (24.96") of precipitation.Snowfall
January through March and December are months with snowfall. December is the first month it typically snows. Throughout December, in the average 0.3 snowfall days, it receives 2mm (0.08") of snow. In Ermua, during the entire year, snow falls for 2.4 days and aggregates up to 20mm (0.79") of snow.Daylight
The month with the shortest days in Ermua is December, with an average of 9h and 6min of daylight.On the first day of the month, sunrise is at 08:22 and sunset at 17:35. On the last day of December, in Ermua, Spain, sunrise is at 08:41 and sunset at 17:44 CET.
Sunshine
The average sunshine in December in Ermua is 5.4h.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 moderate health risk from unsafe exposure to UV radiation for the average person.Note: The maximum daily UV index of 3 in December interprets into the following recommendations:
Undertake protective steps - Recommendations to avoid sunburn are issued. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Keep in mind! Snow's reflective quality can nearly double the intensity of the Sun's UV radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Ermua, Spain
- Average high temperature in December: 12.2°C
The warmest month (with the highest average high temperature) is August (23.3°C).
The month with the lowest average high temperature is January (10.8°C).
- Average low temperature in December: 8.1°C
The month with the highest average low temperature is August (16.9°C).
The coldest month (with the lowest average low temperature) is February (6.5°C).
Average pressure in December
Ermua, Spain
- Average pressure in December: 1021.8mbar
The month with the highest atmospheric pressure is December (1021.8mbar).
The month with the lowest atmospheric pressure is April (1015.6mbar).
Average wind speed in December
Ermua, Spain
- Average wind speed in December: 16.1km/h
The windiest month (with the highest average wind speed) is February (17.2km/h).
The calmest month (with the lowest average wind speed) is August (9.9km/h).
Average humidity in December
Ermua, Spain
- Average humidity in December: 75%
The months with the highest relative humidity are May and June (79%).
The month with the lowest relative humidity is October (73%).
Average rainfall in December
Ermua, Spain
- Average rainfall in December: 54mm
The wettest month (with the highest rainfall) is November (103mm).
The driest month (with the least rainfall) is September (31mm).
Average rainfall days in December
Ermua, Spain
- Average rainfall days in December: 16.5 days
The month with the highest number of rainy days is January (18.6 days).
The month with the least rainy days is October (12.7 days).
Average snowfall in December
Ermua, Spain
- Average snowfall in December: 2mm
The month with the highest snowfall is February (12mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in December
Ermua, Spain
- Average snowfall days in December: 0.3 days
The month with the highest number of snowfall days is February (1.2 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average daylight in December /
Average sunshine in December
Ermua, Spain
- Average daylight in December: 9h and 6min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in December: 5h and 24min
The month with the most sunshine is July (Average sunshine: 9h and 30min).
The month with the least sunshine is November (Average sunshine: 5h and 12min).
Average sunshine days in December
Ermua, Spain
- Average sunshine days in December: 12.2 days
The month with the most sunshine days is October (15.4 days).
The month with the least sunshine days is May (8.8 days).
Average UV index in December
Ermua, Spain
- Average UV index in December: 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 December
Ermua, Spain
- Average cloud cover in December: 44
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 December
Ermua, Spain
- Average visibility in December: 10km
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (10km).
The month with the lowest visibility is January (9km).





