The previous high for the day came from the Helsinki metropolitan area, where a high of 15.7 degrees Celsius was recorded.
According to readings taken from the Kumpula weather station, a high of 15.7 degrees Celsius was recorded Sunday afternoon.
The mercury also topped the 15-degree level in Espoo, Vantaa, Porvoo and Hyvinkää.
The previous spring time high this year was set Saturday afternoon in Hämeenlinna, when the temperature reached 15.2 degrees.
