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
January and December, with an average relative humidity of 83%, are the most humid months in Haarlem.Rainfall
In Haarlem, during January, the rain falls for 14.8 days and regularly aggregates up to 22mm (0.87") of precipitation. Throughout the year, in Haarlem, there are 169.2 rainfall days, and 339mm (13.35") of precipitation is accumulated.Snowfall
January through March and December are months with snowfall in Haarlem. In January, it is snowing for 2.2 days. Throughout January, 6mm (0.24") of snow is accumulated. In Haarlem, during the entire year, snow falls for 7.7 days and aggregates up to 23mm (0.91") of snow.Daylight
In Haarlem, Netherlands, the average length of the day in January is 8h and 19min.On the first day of the month, sunrise is at 08:51 and sunset at 16:38. On the last day of January, sunrise is at 08:24 and sunset at 17:24 CET.
Sunshine
In January, the average sunshine is 3.5h.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 minimal health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: In January, a daily maximum UV index of 2 leads to the following instructions:
Extended time in the sun generally does not harm most, but those with sensitive skin, infants, and children should always be protected. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Take heed! Reflection from the snow can almost amplify the Sun's UV radiation by double.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the coldest months in Haarlem?
How cold does it get in Haarlem in January?
What are the most humid months in Haarlem?
What is the average humidity in January in Haarlem?
How many days does it rain in January in Haarlem?
How much does it snow in Haarlem in January?
What is the average length of the day in January in Haarlem?
When is the sunrise / sunset in January in Haarlem?
How many hours of sunshine does Haarlem have in January?
What are the months with the lowest UV index in Haarlem?
What is the UV index intensity in January in Haarlem?
Average temperature in January
Haarlem, 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
Haarlem, 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
Haarlem, 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
Haarlem, 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
Haarlem, 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
Haarlem, 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
Haarlem, 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
Haarlem, 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
Haarlem, Netherlands
- Average daylight in January: 8h and 2min
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 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
Haarlem, 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
Haarlem, 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
Haarlem, 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
Haarlem, 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).
Haarlem, Netherlands
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