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, with average temperatures reaching a high of -1.9°C (28.6°F) and a low of -5.3°C (22.5°F), is the coldest month.Humidity
In January, the average relative humidity in Aarlahti is 89%.Rainfall
In Aarlahti, in January, during 5.8 rainfall days, 28mm (1.1") of precipitation is typically accumulated. In Aarlahti, during the entire year, the rain falls for 134.6 days and collects up to 394mm (15.51") of precipitation.Snowfall
January through May, October through December are months with snowfall in Aarlahti, Finland. January is the month with the most snowfall. Snow falls for 13.7 days and accumulates 103mm (4.06") of snow.Daylight
The average length of the day in January in Aarlahti is 6h and 42min.On the first day of January, sunrise is at 09:40 and sunset at 15:31. On the last day of the month, sunrise is at 08:53 and sunset at 16:38 EET.
Sunshine
In January, the average sunshine is 2.2h.UV index
January through March, November and December, with an average maximum UV index of 1, are months with the lowest UV index in Aarlahti. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for average individuals.Note: The maximum UV index of 1 during January translates into these guidelines:
The majority are not significantly affected by prolonged sun exposure. Infants, children, and those with fair skin must always have protection. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What time of the year is the coldest in Aarlahti?
How cold is it in Aarlahti in January?
What is the average humidity in January in Aarlahti?
How much does it rain in Aarlahti in January?
What is the snowiest month in Aarlahti?
How much does it snow in Aarlahti in January?
What is the average length of the day in January in Aarlahti?
When is the sunrise / sunset in January in Aarlahti?
How long on average sun shines in January in Aarlahti?
What are the months with the lowest UV index in Aarlahti?
How high is the UV index in January in Aarlahti?
Average temperature in January
Aarlahti, Finland
- Average high temperature in January: -1.9°C
The warmest month (with the highest average high temperature) is July (20.4°C).
The month with the lowest average high temperature is January (-1.9°C).
- Average low temperature in January: -5.3°C
The months with the highest average low temperature are July and August (13.8°C).
The coldest month (with the lowest average low temperature) is February (-5.6°C).
Average pressure in January
Aarlahti, Finland
- Average pressure in January: 1011.1mbar
The month with the highest atmospheric pressure is May (1014.9mbar).
The month with the lowest atmospheric pressure is December (1007.6mbar).
Average wind speed in January
Aarlahti, Finland
- Average wind speed in January: 18.6km/h
The windiest month (with the highest average wind speed) is December (20.4km/h).
The calmest month (with the lowest average wind speed) is July (13.9km/h).
Average humidity in January
Aarlahti, Finland
- Average humidity in January: 89%
The month with the highest relative humidity is February (91%).
The month with the lowest relative humidity is May (71%).
Average rainfall in January
Aarlahti, Finland
- Average rainfall in January: 28mm
The wettest month (with the highest rainfall) is July (49mm).
The driest month (with the least rainfall) is April (19mm).
Average rainfall days in January
Aarlahti, Finland
- Average rainfall days in January: 5.8 days
The month with the highest number of rainy days is July (15.1 days).
The month with the least rainy days is February (5.2 days).
Average snowfall in January
Aarlahti, Finland
- Average snowfall in January: 103mm
The month with the highest snowfall is January (103mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in January
Aarlahti, Finland
- Average snowfall days in January: 13.7 days
The month with the highest number of snowfall days is January (13.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Aarlahti, Finland
- Average daylight in January: 6h and 4min
The month with the longest days is June (Average daylight: 19h and 0min).
The month with the shortest days is December (Average daylight: 5h and 48min).
- Average sunshine in January: 2h and 1min
The month with the most sunshine is July (Average sunshine: 11h and 30min).
The month with the least sunshine is December (Average sunshine: 1h and 54min).
Average sunshine days in January
Aarlahti, Finland
- Average sunshine days in January: 13.2 days
The month with the most sunshine days is May (17.2 days).
The month with the least sunshine days is December (9.6 days).
Average UV index in January
Aarlahti, Finland
- Average UV index in January: 1
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, March, November and December (UV index 1).
Average cloud cover in January
Aarlahti, Finland
- Average cloud cover in January: 70
The month with the most cloud cover is December (Cloud cover 71).
The months with the least cloud cover are July and August (Cloud cover 36).
Average visibility in January
Aarlahti, Finland
- Average visibility in January: 9km
The months with the highest visibility are May, June, July, August and September (10km).
The months with the lowest visibility are February and March (8km).
