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 reports an average high-temperature of a still wintry 1.3°C (34.3°F), slightly varied from December's 3.5°C (38.3°F). A consistent nighttime average temperature of -0.8°C (30.6°F) is maintained in Jomala during January.Humidity
In Jomala, Finland, the average relative humidity in January is 82%.Rainfall
In Jomala, in January, during 5.6 rainfall days, 19mm (0.75") of precipitation is typically accumulated. In Jomala, during the entire year, the rain falls for 116.3 days and collects up to 274mm (10.79") of precipitation.Snowfall
Months with snowfall in Jomala are January through May, October through December. January is the month with the most snowfall in Jomala. Snow falls for 10.1 days and accumulates 44mm (1.73") of snow.Daylight
In Jomala, the average length of the day in January is 6h and 50min.On the first day of the month, sunrise is at 09:43 and sunset at 15:43. On the last day of January, in Jomala, sunrise is at 08:57 and sunset at 16:49 EET.
Sunshine
January and December, with an average of 2.2h of sunshine, are months with the least sunshine.UV index
The months with the lowest UV index are January through March, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: The maximum UV index of 1 during January leads to these instructions:
Extended sunlight exposure does not pose significant problems for most people, except for children, infants, and people with fair skin who always need shielding. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days. Be attentive! The reflective property of snow can nearly double the Sun's UV radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is January in Jomala?
What is the average humidity in January in Jomala?
How many days does it rain in January in Jomala?
What is the snowiest month in Jomala?
How many days does it snow in January in Jomala?
What is the average length of the day in January in Jomala?
When is the sunrise / sunset in January in Jomala?
What is the month with the least sunshine in Jomala?
How many hours of sunshine does Jomala have in January?
What are the months with the lowest UV index in Jomala?
What is the UV index reading in January in Jomala?
Average temperature in January
Jomala, Finland
- Average high temperature in January: 1.3°C
The warmest month (with the highest average high temperature) is August (17.6°C).
The month with the lowest average high temperature is February (0.5°C).
- Average low temperature in January: -0.8°C
The month with the highest average low temperature is August (15.9°C).
The coldest month (with the lowest average low temperature) is February (-1.5°C).
Average pressure in January
Jomala, Finland
- 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 (1007.4mbar).
Average wind speed in January
Jomala, Finland
- Average wind speed in January: 30.1km/h
The windiest month (with the highest average wind speed) is December (31.7km/h).
The calmest month (with the lowest average wind speed) is July (20km/h).
Average humidity in January
Jomala, Finland
- Average humidity in January: 82%
The month with the highest relative humidity is February (84%).
The months with the lowest relative humidity are August and October (78%).
Average rainfall in January
Jomala, Finland
- Average rainfall in January: 19mm
The wettest month (with the highest rainfall) is October (32mm).
The driest month (with the least rainfall) is April (11mm).
Average rainfall days in January
Jomala, Finland
- Average rainfall days in January: 5.6 days
The month with the highest number of rainy days is August (14.2 days).
The month with the least rainy days is February (3.8 days).
Average snowfall in January
Jomala, Finland
- Average snowfall in January: 44mm
The month with the highest snowfall is January (44mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in January
Jomala, Finland
- Average snowfall days in January: 10.1 days
The month with the highest number of snowfall days is January (10.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Jomala, Finland
- Average daylight in January: 6h and 5min
The month with the longest days is June (Average daylight: 18h and 48min).
The month with the shortest days is December (Average daylight: 6h and 0min).
- Average sunshine in January: 2h and 1min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The months with the least sunshine are January and December (Average sunshine: 2h and 12min).
Average sunshine days in January
Jomala, Finland
- Average sunshine days in January: 12.2 days
The month with the most sunshine days is May (20.5 days).
The month with the least sunshine days is December (11.1 days).
Average UV index in January
Jomala, 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 and March (UV index 1).
Average cloud cover in January
Jomala, Finland
- Average cloud cover in January: 71
The month with the most cloud cover is January (Cloud cover 71).
The months with the least cloud cover are July and August (Cloud cover 35).
Average visibility in January
Jomala, 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).
