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 is the coldest month in Leiden, with the temperature often reaching an average high of 5.8°C (42.4°F) and an average low of 3.3°C (37.9°F).Humidity
January and December, with an average relative humidity of 83%, are the most humid months in Leiden.Rainfall
In Leiden, in January, it is raining for 16.6 days, with typically 30mm (1.18") of accumulated precipitation. In Leiden, during the entire year, the rain falls for 183.4 days and collects up to 400mm (15.75") of precipitation.Snowfall
January through March, November and December are months with snowfall in Leiden. In January, in Leiden, Netherlands, it is snowing for 2.3 days. Throughout January, 10mm (0.39") of snow is accumulated. In Leiden, during the entire year, snow falls for 9.5 days and aggregates up to 46mm (1.81") of snow.Daylight
The average length of the day in January in Leiden is 8h and 21min.On the first day of the month, sunrise is at 08:50 and sunset at 16:39. On the last day of January, sunrise is at 08:24 and sunset at 17:26 CET.
Sunshine
In January, the average sunshine in Leiden is 3.7h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Leiden. A UV Index estimate of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for the average person.Note: The maximum daily UV index of 2 in January interprets into the following recommendations:
Babies, children, and those with sensitive skin should always avoid extended periods in the sun. Direct Sun exposure should be minimized especially during midday when radiation is most intense. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest time of year in Leiden?
Is it cold in Leiden during January?
What is the most humid month in Leiden?
What is the average humidity in January in Leiden?
How many days does it rain in January in Leiden?
How many days does it snow in January in Leiden?
What is the average length of the day in January in Leiden?
When are sunrise and sunset in January in Leiden?
How many hours of sunshine does Leiden have in January?
What is the month with the lowest UV index in Leiden?
What is the UV index reading in January in Leiden?
Average temperature in January
Leiden, Netherlands
- Average high temperature in January: 5.8°C
The warmest month (with the highest average high temperature) is August (21°C).
The month with the lowest average high temperature is January (5.8°C).
- Average low temperature in January: 3.3°C
The month with the highest average low temperature is August (16.3°C).
The coldest month (with the lowest average low temperature) is February (2.8°C).
Average pressure in January
Leiden, Netherlands
- Average pressure in January: 1014.6mbar
The month with the highest atmospheric pressure is September (1016.8mbar).
The month with the lowest atmospheric pressure is November (1011.2mbar).
Average wind speed in January
Leiden, Netherlands
- Average wind speed in January: 23.3km/h
The windiest month (with the highest average wind speed) is December (24.7km/h).
The calmest month (with the lowest average wind speed) is July (16.1km/h).
Average humidity in January
Leiden, Netherlands
- Average humidity in January: 83%
The months with the highest relative humidity are January and December (83%).
The months with the lowest relative humidity are April and August (75%).
Average rainfall in January
Leiden, Netherlands
- Average rainfall in January: 30mm
The wettest month (with the highest rainfall) is August (53mm).
The driest month (with the least rainfall) is April (14mm).
Average rainfall days in January
Leiden, Netherlands
- Average rainfall days in January: 16.6 days
The month with the highest number of rainy days is August (19.1 days).
The month with the least rainy days is April (11.3 days).
Average snowfall in January
Leiden, Netherlands
- Average snowfall in January: 10mm
The month with the highest snowfall is February (22mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in January
Leiden, Netherlands
- Average snowfall days in January: 2.3 days
The month with the highest number of snowfall days is February (3.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in January /
Average sunshine in January
Leiden, 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 4min
The month with the most sunshine is June (Average sunshine: 10h and 18min).
The month with the least sunshine is December (Average sunshine: 3h and 30min).
Average sunshine days in January
Leiden, Netherlands
- Average sunshine days in January: 10.8 days
The month with the most sunshine days is April (16.8 days).
The month with the least sunshine days is December (8.1 days).
Average UV index in January
Leiden, 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
Leiden, Netherlands
- Average cloud cover in January: 62
The month with the most cloud cover is December (Cloud cover 65).
The months with the least cloud cover are April and August (Cloud cover 38).
Average visibility in January
Leiden, Netherlands
- Average visibility in January: 9km
The months with the highest visibility are February, March, April, May, June, July, August, September, October and November (10km).
The months with the lowest visibility are January and December (9km).
Leiden, Netherlands
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