December weather forecastIstán, Spain
December
Weather in December
The first month of the winter, December, is still a mild month in Istán, Spain, with temperature in the range of an average high of 15.4°C (59.7°F) and an average low of 10.1°C (50.2°F).Temperature
The transition from November to December brings an average high-temperature of a mild 15.4°C (59.7°F), barely different from November's 17.4°C (63.3°F). An average low-temperature of 10.1°C (50.2°F) marks the month of December.Humidity
The months with the highest humidity are January and December, with an average relative humidity of 74%.Rainfall
In Istán, in December, it is raining for 6.5 days, with typically 17mm (0.67") of accumulated precipitation. In Istán, during the entire year, the rain falls for 71.4 days and collects up to 182mm (7.17") of precipitation.Daylight
With an average of 9h and 42min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 08:13 and sunset at 18:04. On the last day of December, sunrise is at 08:31 and sunset at 18:14 CET.
Sunshine
In Istán, the average sunshine in December is 8.5h.UV index
The months with the lowest UV index in Istán are January through March, November and December, with an average maximum UV index of 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: The maximum daily UV index of 4 during December translates into the following directions:
Prioritize safety - Recommendations to avert sunburn are shared. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Istán, Spain
- Average high temperature in December: 15.4°C
The warmest month (with the highest average high temperature) is August (29.5°C).
The month with the lowest average high temperature is January (14.4°C).
- Average low temperature in December: 10.1°C
The month with the highest average low temperature is August (21.6°C).
The coldest month (with the lowest average low temperature) is February (8.6°C).
Average pressure in December
Istán, Spain
- Average pressure in December: 1022.6mbar
The month with the highest atmospheric pressure is December (1022.6mbar).
The months with the lowest atmospheric pressure are July and August (1015mbar).
Average wind speed in December
Istán, Spain
- Average wind speed in December: 10.6km/h
The windiest months (with the highest average wind speed) are February and March (12.3km/h).
The calmest month (with the lowest average wind speed) is October (8.6km/h).
Average humidity in December
Istán, Spain
- Average humidity in December: 74%
The months with the highest relative humidity are January and December (74%).
The month with the lowest relative humidity is July (57%).
Average rainfall in December
Istán, Spain
- Average rainfall in December: 17mm
The wettest month (with the highest rainfall) is November (35mm).
The driest month (with the least rainfall) is July (1mm).
Average rainfall days in December
Istán, Spain
- Average rainfall days in December: 6.5 days
The month with the highest number of rainy days is March (9.4 days).
The month with the least rainy days is July (2 days).
Average daylight in December /
Average sunshine in December
Istán, Spain
- Average daylight in December: 9h and 42min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in December: 8h and 30min
The months with the most sunshine are June, July and August (Average sunshine: 10h and 6min).
The month with the least sunshine is March (Average sunshine: 8h and 12min).
Average sunshine days in December
Istán, Spain
- Average sunshine days in December: 21.6 days
The month with the most sunshine days is July (28.6 days).
The month with the least sunshine days is April (19.2 days).
Average UV index in December
Istán, Spain
- Average UV index in December: 4
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 4).
Average cloud cover in December
Istán, Spain
- Average cloud cover in December: 27
The months with the most cloud cover are January and March (Cloud cover 29).
The month with the least cloud cover is July (Cloud cover 5).
Average visibility in December
Istán, Spain
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
