Contents
- Weather in January
- Frequently asked questions
- Average temperature in January
- Average pressure in January
- Average wind speed in January
- Average humidity in January
- Average rainfall in January
- Average rainfall days in January
- Average snowfall in January
- Average snowfall days in January
- Average daylight in January
- Average sunshine in January
- Average sunshine days in January
- Average UV index in January
- Average cloud cover in January
- Average visibility in January
Weather in January
Temperature
January and February represent the coldest period, with an average high-temperature of 5.8°C (42.4°F).Humidity
The months with the highest humidity in Heiloo are January and December, with an average relative humidity of 83%.Rainfall
In Heiloo, during January, the rain falls for 14.8 days and regularly aggregates up to 22mm (0.87") of precipitation. In Heiloo, during the entire year, the rain falls for 169.2 days and collects up to 339mm (13.35") of precipitation.Snowfall
Months with snowfall in Heiloo are January through March and December. In Heiloo, in January, snow falls for 2.2 days, with typically accumulated 6mm (0.24") of snow. In Heiloo, during the entire year, snow falls for 7.7 days and aggregates up to 23mm (0.91") of snow.Daylight
In Heiloo, Netherlands, the average length of the day in January is 8h and 17min.On the first day of the month, sunrise is at 08:52 and sunset at 16:36. On the last day of January, in Heiloo, sunrise is at 08:25 and sunset at 17:23 CET.
Sunshine
In January, the average sunshine is 3.5h.UV index
The months with the lowest UV index in Heiloo are January, February, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health hazard from unsafe exposure to UV radiation for the ordinary person.Note: In January, the UV index of 2 transforms into the following advice:
Despite the majority tolerating prolonged sun exposure, those with sensitive skin, infants, and children demand continual protection. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. Boost your sun resistance with garments that are densely woven yet spacious. Heads up! The UV radiation from the Sun can almost be doubled by snow reflection.
Frequently asked questions
What time of the year is the coldest in Heiloo?
Is January cold in Heiloo?
What is the most humid month in Heiloo?
What is the average humidity in January in Heiloo?
How many days does it rain in January in Heiloo?
How many days does it snow in January in Heiloo?
How many hours of daylight does Heiloo have in January?
What time are sunrise and sunset in January in Heiloo?
How many hours of sunshine does Heiloo have in January?
What are the months with the lowest UV index in Heiloo?
What is the UV index intensity in January in Heiloo?
Average temperature in January
Heiloo, Netherlands
- Average high temperature in January: 5.8°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 January: 3.6°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 January
Heiloo, Netherlands
- Average pressure in January: 1014.3mbar
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 January
Heiloo, Netherlands
- Average wind speed in January: 26.5km/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 January
Heiloo, Netherlands
- Average humidity in January: 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 January
Heiloo, Netherlands
- Average rainfall in January: 22mm
The wettest month (with the highest rainfall) is August (48mm).
The driest month (with the least rainfall) is April (11mm).
Average rainfall days in January
Heiloo, Netherlands
- Average rainfall days in January: 14.8 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 January
Heiloo, Netherlands
- Average snowfall in January: 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 January
Heiloo, Netherlands
- Average snowfall days in January: 2.2 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 January /
Average sunshine in January
Heiloo, Netherlands
- Average daylight in January: 8h and 2min
The month with the longest days is June (Average daylight: 16h and 48min).
The month with the shortest days is December (Average daylight: 7h and 42min).
- Average sunshine in January: 3h and 3min
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 January
Heiloo, Netherlands
- Average sunshine days in January: 11.8 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 January
Heiloo, Netherlands
- Average UV index in January: 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 January
Heiloo, Netherlands
- Average cloud cover in January: 64
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 January
Heiloo, Netherlands
- Average visibility in January: 10km
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).
Heiloo, Netherlands
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