päviäyö

Päviäyö is a Finnish term that translates roughly to "daytime night" or "light night." It refers to the phenomenon of twilight occurring during the summer months in the northern latitudes of Finland, particularly in the northern parts of Lapland. During the summer solstice, the sun does not set below the horizon for extended periods, resulting in a constant state of twilight.

This prolonged twilight means that darkness, as experienced in more southern regions, is absent. Instead, the sky remains illuminated, albeit with varying degrees of light. The light can range from a soft, dusky glow to a brighter, almost sunlit appearance, depending on the specific time of day and atmospheric conditions. This unique natural light is often described as ethereal or magical by visitors and locals alike.

The päviäyö phenomenon significantly impacts the local environment and human activities. It affects plant growth, animal behavior, and sleep patterns. For humans, the constant daylight can disrupt circadian rhythms, leading to difficulties in sleeping. Many locals adapt by using blackout curtains or adopting a different sleep schedule. The päviäyö is also a popular time for outdoor activities and tourism, as people can enjoy the landscape and engage in various pursuits around the clock. The visual spectacle of the twilight sky, often painted with hues of pink, orange, and purple, is a major draw for tourists seeking to experience this natural wonder.