Remarkably warm June night. Tropical night at coastal and lake weather stations due to anomalously warm lake and sea surface temperatures.
— Mika Rantanen (@mikarantane) June 28, 2022
Porvoo Kalbådagrund remained above 22.7°C all night. If it stands until 9 p.m., it will be the highest Tmin in June in Finland. pic.twitter.com/BvZ4WJsI5K