December weather forecastHelwijk, Netherlands
December
Weather in December
December, the first month of the winter in Helwijk, is still a chilly month, with an average temperature fluctuating between 6.5°C (43.7°F) and 3.1°C (37.6°F).Temperature
The move into December indicates a slight reduction in the average high-temperature, down from November's 9.8°C (49.6°F) to a still frosty 6.5°C (43.7°F). An average temperature of 3.1°C (37.6°F) is logged during the nights of December in Helwijk, a small step down from daytime highs.Humidity
The most humid month is December, with an average relative humidity of 87%.Rainfall
In Helwijk, Netherlands, during December, the rain falls for 9.9 days and regularly aggregates up to 14mm (0.55") of precipitation. Throughout the year, in Helwijk, there are 104.9 rainfall days, and 132mm (5.2") of precipitation is accumulated.Snowfall
January through March and December are months with snowfall in Helwijk. December is the first month it typically snows in Helwijk. Throughout December, in the average 1.5 snowfall days, it receives 4mm (0.16") of snow. Throughout the year, there are 7 snowfall days, and 21mm (0.83") of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 7h and 54min of daylight.On the first day of the month, sunrise is at 08:27 and sunset at 16:35. On the last day of December, sunrise is at 08:48 and sunset at 16:42 CET.
Sunshine
With an average of 3.4h of sunshine, December has the least sunshine of the year.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 value of 2, and less, symbolizes a low threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In December, the UV index of 2 transforms into the following advice:
Children necessitate constant protection from sunlight, unlike the majority, who can remain under the sun for about an hour without burning. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. Experience reduced UV exposure by about half when donning a wide-brim hat. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Helwijk, Netherlands
- Average high temperature in December: 6.5°C
The warmest month (with the highest average high temperature) is August (22.7°C).
The month with the lowest average high temperature is January (5.3°C).
- Average low temperature in December: 3.1°C
The month with the highest average low temperature is August (14.1°C).
The coldest month (with the lowest average low temperature) is February (1.4°C).
Average pressure in December
Helwijk, Netherlands
- Average pressure in December: 1015.4mbar
The month with the highest atmospheric pressure is September (1017.2mbar).
The month with the lowest atmospheric pressure is November (1011.9mbar).
Average wind speed in December
Helwijk, Netherlands
- Average wind speed in December: 17.5km/h
The windiest months (with the highest average wind speed) are February and December (17.5km/h).
The calmest month (with the lowest average wind speed) is August (12.1km/h).
Average humidity in December
Helwijk, Netherlands
- Average humidity in December: 87%
The month with the highest relative humidity is December (87%).
The month with the lowest relative humidity is April (74%).
Average rainfall in December
Helwijk, Netherlands
- Average rainfall in December: 14mm
The wettest month (with the highest rainfall) is June (15mm).
The driest month (with the least rainfall) is April (5mm).
Average rainfall days in December
Helwijk, Netherlands
- Average rainfall days in December: 9.9 days
The month with the highest number of rainy days is August (10.3 days).
The month with the least rainy days is April (6.3 days).
Average snowfall in December
Helwijk, Netherlands
- Average snowfall in December: 4mm
The month with the highest snowfall is February (10mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in December
Helwijk, Netherlands
- Average snowfall days in December: 1.5 days
The month with the highest number of snowfall days is February (2.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Helwijk, Netherlands
- Average daylight in December: 7h and 54min
The month with the longest days is June (Average daylight: 16h and 36min).
The month with the shortest days is December (Average daylight: 7h and 54min).
- Average sunshine in December: 3h and 24min
The month with the most sunshine is June (Average sunshine: 9h and 12min).
The month with the least sunshine is December (Average sunshine: 3h and 24min).
Average sunshine days in December
Helwijk, Netherlands
- Average sunshine days in December: 16.4 days
The month with the most sunshine days is April (21.3 days).
The month with the least sunshine days is November (15.5 days).
Average UV index in December
Helwijk, 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
Helwijk, Netherlands
- Average cloud cover in December: 66
The month with the most cloud cover is December (Cloud cover 66).
The month with the least cloud cover is April (Cloud cover 42).
Average visibility in December
Helwijk, Netherlands
- Average visibility in December: 9km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
