Weather in January
In comparison to the preceding month of
December,
January in
Hanko,
Finland experiences intensifying severity in cold weather. Residents prepare for an average sea temperature of about 1.8°C (35.2°F). Despite the submerged thermometer readings, the daylight hours start to increase, signaling the far-off spring. The month's icy chill is more pronounced with its biting sea breeze and snowfall. Remarkably, January stands as one of the coldest months in Hanko.
Sea temperature
In January, the average sea temperature in Hanko, Finland, is 1.8°C (35.2°F).
Note: During swimming, this state is an instant threat to life. Breathing is uncontrollable, and coherent thought processes nearly vanish. A specialized swimsuit is crucial to minimize thermal dissipation.
Daylight
In January, the average length of the day is 6h and 55min.
On the first day of the month, sunrise is at 09:28 and sunset at 15:34. On the last day of January, sunrise is at 08:44 and sunset at 16:38 EET.