Because of Helsinki's northern location and earth's angle during summer, it doesn't get completely Dark. In northernmost parts of Finland (as well in anywhere in north) sun actually stays above horizon around the midsummer nights.
In contrast, Wintertime is very Dark in Helsinki and whole Finland. Thankfully there are white snow (usually) to give some light to the darkness :).
Bats are active during the nighttime hours and sleep during the day.
because
Disturbed nighttime sleep is tossing and turning, nightmares, and frequent awakenings during the night.
Helsinki, Finland is 2 hours ahead of Greenwich
During the winter months in Greenland, the duration of nighttime can vary depending on the specific location within the country. In general, the nighttime can last for several months, with some areas experiencing 24-hour darkness for a period of time.
Helsinki has always been Finland's Capital city.
They are active during daylight hours.
only during the winter solstice
During the summer (in the northern
The recommended bike light for optimal visibility and safety during nighttime rides should have a minimum of 200 lumens.
Heat waves can occur during both daytime and nighttime. However, temperatures are typically highest during the daytime due to the sun's radiation, which can contribute to more intense heat wave conditions during that time.
Wearing a raincoat with reflective strips during nighttime activities increases visibility, making you more easily seen by drivers and reducing the risk of accidents.