December weather forecastHaarlem, Netherlands
December
Weather in December
December brings the full force of winter to Haarlem, with the mercury going down to 7.7°C (45.9°F). Short days and long, frosty nights become the new normal, owing to the tilt of the Earth's axis. Snowfall returns, dusting the cityscape with white and creating a sublime winter spectacle. Despite the cold and damp conditions, the holiday season brings a unique festive warmth to the city. With December, the city turns into a winter wonderland, rounding off the year on an enchantingly chilly note.Temperature
December's arrival in Haarlem brings an average high-temperature of a frosty 7.7°C (45.9°F), slightly deviating from November's 10.3°C (50.5°F). December in Haarlem sees a slight dip to an average low temperature of 5.6°C (42.1°F) from the daytime highs.Humidity
January and December, with an average relative humidity of 83%, are the most humid months in Haarlem, Netherlands.Rainfall
In Haarlem, in December, during 17 rainfall days, 33mm (1.3") of precipitation is typically accumulated. In Haarlem, during the entire year, the rain falls for 169.2 days and collects up to 339mm (13.35") 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 1.8 snowfall days, it receives 6mm (0.24") of snow. Throughout the year, in Haarlem, Netherlands, there are 7.7 snowfall days, and 23mm (0.91") of snow is accumulated.Daylight
The month with the shortest days in Haarlem is December, with an average of 7h and 48min of daylight.On the first day of December, sunrise is at 08:29 and sunset at 16:31. On the last day of the month, sunrise is at 08:51 and sunset at 16:37 CET.
Sunshine
With an average of 3.4h of sunshine, December has the least sunshine of the year in Haarlem, Netherlands.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: A typical high UV index of 2 in December suggests the following recommendations:
While most people are not greatly affected by extended sun exposure, those with fair skin, babies, and children must always have protection. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Watch out! The Sun's UV radiation can be nearly magnified twofold due to snow reflection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Haarlem, Netherlands
- Average high temperature in December: 7.7°C
The warmest month (with the highest average high temperature) is August (19.9°C).
The months with the lowest average high temperature are January and February (5.8°C).
- Average low temperature in December: 5.6°C
The month with the highest average low temperature is August (16.6°C).
The coldest month (with the lowest average low temperature) is February (3.3°C).
Average pressure in December
Haarlem, Netherlands
- Average pressure in December: 1013.9mbar
The month with the highest atmospheric pressure is September (1016.6mbar).
The month with the lowest atmospheric pressure is November (1010.9mbar).
Average wind speed in December
Haarlem, Netherlands
- Average wind speed in December: 28.4km/h
The windiest month (with the highest average wind speed) is December (28.4km/h).
The calmest month (with the lowest average wind speed) is July (18km/h).
Average humidity in December
Haarlem, Netherlands
- Average humidity in December: 83%
The months with the highest relative humidity are January and December (83%).
The month with the lowest relative humidity is August (76%).
Average rainfall in December
Haarlem, Netherlands
- Average rainfall in December: 33mm
The wettest month (with the highest rainfall) is August (48mm).
The driest month (with the least rainfall) is April (11mm).
Average rainfall days in December
Haarlem, Netherlands
- Average rainfall days in December: 17 days
The month with the highest number of rainy days is August (17.2 days).
The month with the least rainy days is April (10.6 days).
Average snowfall in December
Haarlem, Netherlands
- Average snowfall in December: 6mm
The month with the highest snowfall is February (9mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in December
Haarlem, Netherlands
- Average snowfall days in December: 1.8 days
The month with the highest number of snowfall days is February (2.7 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Haarlem, Netherlands
- Average daylight in December: 7h and 48min
The month with the longest days is June (Average daylight: 16h and 42min).
The month with the shortest days is December (Average daylight: 7h and 48min).
- Average sunshine in December: 3h and 24min
The month with the most sunshine is June (Average sunshine: 10h and 12min).
The month with the least sunshine is December (Average sunshine: 3h and 24min).
Average sunshine days in December
Haarlem, Netherlands
- Average sunshine days in December: 9.1 days
The month with the most sunshine days is April (17.7 days).
The month with the least sunshine days is December (9.1 days).
Average UV index in December
Haarlem, Netherlands
- Average UV index in December: 2
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Haarlem, Netherlands
- Average cloud cover in December: 67
The month with the most cloud cover is December (Cloud cover 67).
The month with the least cloud cover is August (Cloud cover 39).
Average visibility in December
Haarlem, Netherlands
- Average visibility in December: 9km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October and November (10km).
The month with the lowest visibility is December (9km).
