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
January
Weather in January
Temperature
January is the coldest month, with an average high-temperature of 0.2°C (32.4°F) and an average low-temperature of -2.5°C (27.5°F).Humidity
In Norrtälje, the average relative humidity in January is 85%.Rainfall
In Norrtälje, during January, the rain falls for 7.3 days and regularly aggregates up to 20mm (0.79") of precipitation. In Norrtälje, during the entire year, the rain falls for 140.1 days and collects up to 354mm (13.94") of precipitation.Snowfall
January through May, October through December are months with snowfall. In Norrtälje, during January, snow falls for 11.3 days and regularly aggregates up to 49mm (1.93") of snow. Throughout the year, in Norrtälje, there are 47.1 snowfall days, and 311mm (12.24") of snow is accumulated.Daylight
In January, the average length of the day in Norrtälje is 6h and 56min.On the first day of January in Norrtälje, sunrise is at 08:45 and sunset at 14:51. On the last day of the month, sunrise is at 08:00 and sunset at 15:56 CET.
Sunshine
In January, the average sunshine is 3.2h.UV index
The months with the lowest UV index are January and February, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: In January, a daily UV index of 1 turns into the following recommendations:
While extended sun exposure does not significantly affect most people, those with sensitive skin, children, and infants should always be protected. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses. Be alert to the fact! The reflection from snow can nearly double the UV radiation of the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest time of year in Norrtälje?
How cold is January in Norrtälje?
What is the average humidity in January in Norrtälje?
How much does it rain in Norrtälje in January?
How many days does it snow in January in Norrtälje?
How many hours of daylight does Norrtälje have in January?
What time are sunrise and sunset in January in Norrtälje?
How many hours of sunshine does Norrtälje have in January?
When is the lowest UV index in Norrtälje?
What is the UV index reading in January in Norrtälje?
Average temperature in January
Norrtälje, Sweden
- Average high temperature in January: 0.2°C
The warmest months (with the highest average high temperature) are July and August (19.5°C).
The month with the lowest average high temperature is January (0.2°C).
- Average low temperature in January: -2.5°C
The months with the highest average low temperature are July and August (14.1°C).
The coldest months (with the lowest average low temperature) are January and February (-2.5°C).
Average pressure in January
Norrtälje, Sweden
- Average pressure in January: 1010.9mbar
The month with the highest atmospheric pressure is May (1014.9mbar).
The month with the lowest atmospheric pressure is December (1007.5mbar).
Average wind speed in January
Norrtälje, Sweden
- Average wind speed in January: 21km/h
The windiest month (with the highest average wind speed) is December (21.8km/h).
The calmest month (with the lowest average wind speed) is July (14.3km/h).
Average humidity in January
Norrtälje, Sweden
- Average humidity in January: 85%
The months with the highest relative humidity are February and November (86%).
The months with the lowest relative humidity are April, May and June (75%).
Average rainfall in January
Norrtälje, Sweden
- Average rainfall in January: 20mm
The wettest month (with the highest rainfall) is July (52mm).
The driest month (with the least rainfall) is April (16mm).
Average rainfall days in January
Norrtälje, Sweden
- Average rainfall days in January: 7.3 days
The month with the highest number of rainy days is August (16.2 days).
The month with the least rainy days is February (5.8 days).
Average snowfall in January
Norrtälje, Sweden
- Average snowfall in January: 49mm
The month with the highest snowfall is February (82mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in January
Norrtälje, Sweden
- Average snowfall days in January: 11.3 days
The month with the highest number of snowfall days is January (11.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Norrtälje, Sweden
- Average daylight in January: 6h and 5min
The month with the longest days is June (Average daylight: 18h and 36min).
The month with the shortest days is December (Average daylight: 6h and 6min).
- Average sunshine in January: 3h and 1min
The month with the most sunshine is June (Average sunshine: 12h and 42min).
The month with the least sunshine is December (Average sunshine: 2h and 24min).
Average sunshine days in January
Norrtälje, Sweden
- Average sunshine days in January: 13 days
The month with the most sunshine days is May (14.5 days).
The month with the least sunshine days is August (11.3 days).
Average UV index in January
Norrtälje, Sweden
- Average UV index in January: 1
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January and February (UV index 1).
Average cloud cover in January
Norrtälje, Sweden
- Average cloud cover in January: 66
The month with the most cloud cover is January (Cloud cover 66).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in January
Norrtälje, Sweden
- Average visibility in January: 9km
The months with the highest visibility are June, July, August, September and October (10km).
The months with the lowest visibility are January, February, March, April, May, November and December (9km).
