The Baltic Sea is currently experiencing historically low water levels. During February 2026, persistent high pressure and strong northeasterly winds pushed enormous amounts of water – almost 300 cubic kilometers – through the Öresund and the Belts towards the North Sea.
Historical levels: Several measuring stations have approached or broken previous records for low water levels.
Cause: A strong and stationary high pressure combined with cold winds has acted as a "pump" that has drained the sea of water.
Good news for the environment: The extremely low water level creates a "place" in the Baltic Sea. When the weather turns, this can pave the way for a strong influx of salt and oxygen-rich water from the Western Sea, which is crucial for saving oxygen-poor seabeds.
So why not head out to the east coast on a starry night! And indeed, the water level was very low. I could see barnacles on the rocks where the water's edge used to be. Amazing ice formations everywhere and when I shone UV light many interesting things under the ice fluoresced in different colors. I have no idea what it was, but probably algae, seaweed and minerals.
And on top of all this beauty the Northern Lights appeared with a nice spectacle!
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