Coast, Mariehamn. We calculate high and low water here from an ocean tide model — accurate to about 5 cm on open coasts, considerably less in tidal flats and river mouths. This spot is not in any official register — there are no water samples and no classification.
Water temperature 9.1 °C — NOAA Geo-Polar Blended (5 km), measured 04/11/2026 14:00.
High tide at 19:31, Low tide at 00:17 (Local time at the spot).
Swimming spots in Mariehamn · Mariehamn · Swimming spots in Åland · Baltic Sea · On the map