January weather forecast
Karlby, Finland

January

Weather in January

January, like December, in Karlby, Finland, is another cold winter month, with an average temperature varying between 1.2°C (34.2°F) and -1°C (30.2°F).

Temperature

As Karlby steps into January, the average high-temperature is measured at a still wintry 1.2°C (34.2°F), displaying minor differences from December's 3.5°C (38.3°F). In Karlby, the month of January records an average minimum temperature of -1°C (30.2°F), a slight dip from the daily highs.

Humidity

The average relative humidity in January is 82%.

Rainfall

In Karlby, during January, the rain falls for 7.5 days and regularly aggregates up to 22mm (0.87") of precipitation. Throughout the year, there are 132.5 rainfall days, and 310mm (12.2") of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall. January is the month with the most snowfall. Snow falls for 10.3 days and accumulates 41mm (1.61") of snow.

Daylight

The average length of the day in January is 6h and 53min.
On the first day of the month, sunrise is at 09:37 and sunset at 15:41. On the last day of January, sunrise is at 08:52 and sunset at 16:46 EET.

Sunshine

In Karlby, the average sunshine in January is 2.3h.

UV index

The months with the lowest UV index are January through March and December, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for the ordinary person.
Note: During January, 1 as the daily maximum UV index converts into the following advice:
Despite the majority tolerating prolonged sun exposure, those with sensitive skin, infants, and children demand continual protection. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.

Frequently asked questions

How cold is it in Karlby in January?
January temperatures vary between a high-temperature of 1.2°C (34.2°F) and a low-temperature of -1°C (30.2°F).
What is the average humidity in January?
In Karlby, Finland, the average relative humidity in January is 82%.
How many days does it rain in January?
In Karlby, during January, the rain falls for 7.5 days and regularly aggregates up to 22mm (0.87") of precipitation.
What is the snowiest month?
The month with the most snowfall is January, when snow falls for 10.3 days and typically aggregates up to 41mm (1.61") of snow.
How many days does it snow in January?
In January, it is snowing for 10.3 days. Throughout January, 41mm (1.61") of snow is accumulated.
What is the average length of the day in January in Karlby?
In January, the average day length is 6h and 53min.
When are sunrise and sunset in January?
In January, on the first day of the month, sunrise is at 09:37 and sunset at 15:41. On the last day of the month, sunrise is at 08:52 and sunset at 16:46 EET.
How long on average sun shines in January?
The average sunshine duration in January is 2.3h.
What are the months with the lowest UV index?
January through March and December, with an average maximum UV index of 1, are months with the lowest UV index.
How high is the UV index in January?
The average daily maximum UV index in January is 1. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in January - Karlby, Finland
Average temperature in January
Karlby, Finland
  • Average high temperature in January: 1.2°C

The warmest month (with the highest average high temperature) is August (18.1°C).
The month with the lowest average high temperature is February (0.3°C).

  • Average low temperature in January: -1°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 (-1.7°C).

Average pressure in January - Karlby, Finland
Average pressure in January
Karlby, Finland
  • Average pressure in January: 1011.2mbar

The month with the highest atmospheric pressure is May (1015mbar).
The month with the lowest atmospheric pressure is December (1007.8mbar).

Average wind speed in January - Karlby, Finland
Average wind speed in January
Karlby, Finland
  • Average wind speed in January: 31.3km/h

The windiest month (with the highest average wind speed) is December (34.1km/h).
The calmest month (with the lowest average wind speed) is July (21.2km/h).

Average humidity in January - Karlby, Finland
Average humidity in January
Karlby, Finland
  • Average humidity in January: 82%

The months with the highest relative humidity are February and March (84%).
The months with the lowest relative humidity are August, September and October (78%).

Average rainfall in January - Karlby, Finland
Average rainfall in January
Karlby, Finland
  • Average rainfall in January: 22mm

The wettest month (with the highest rainfall) is September (38mm).
The driest month (with the least rainfall) is April (12mm).

Average rainfall days in January - Karlby, Finland
Average rainfall days in January
Karlby, Finland
  • Average rainfall days in January: 7.5 days

The month with the highest number of rainy days is August (14.8 days).
The month with the least rainy days is February (5.8 days).

Average snowfall in January - Karlby, Finland
Average snowfall in January
Karlby, Finland
  • Average snowfall in January: 41mm

The month with the highest snowfall is January (41mm).
The months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in January - Karlby, Finland
Average snowfall days in January
Karlby, Finland
  • Average snowfall days in January: 10.3 days

The month with the highest number of snowfall days is January (10.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in January / Average sunshine in January - Karlby, Finland
Average daylight in January /
Average sunshine in January
Karlby, Finland
  • Average daylight in January: 6h and 5min

The month with the longest days is June (Average daylight: 18h and 42min).
The month with the shortest days is December (Average daylight: 6h and 6min).

  • Average sunshine in January: 2h and 2min

The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 2h and 0min).

Average sunshine days in January - Karlby, Finland
Average sunshine days in January
Karlby, Finland
  • Average sunshine days in January: 11.7 days

The month with the most sunshine days is May (19.3 days).
The month with the least sunshine days is December (8.9 days).

Average UV index in January - Karlby, Finland
Average UV index in January
Karlby, Finland
  • 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, February, March and December (UV index 1).

Average cloud cover in January - Karlby, Finland
Average cloud cover in January
Karlby, Finland
  • Average cloud cover in January: 71

The months with the most cloud cover are January and December (Cloud cover 71).
The months with the least cloud cover are July and August (Cloud cover 33).

Average visibility in January - Karlby, Finland
Average visibility in January
Karlby, Finland
  • Average visibility in January: 9km

The months with the highest visibility are April, May, June, July, August, September and October (10km).
The months with the lowest visibility are January, February, March, November and December (9km).

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