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Järviwiki is about Finnish lakes and sea areas

Järviwiki (Lakewiki) is a web service which is built and maintained in cooperation by authorities and common people. In Järviwiki there is basic information of each Finnish lake over 1 ha in extent and tools for sharing ie. observations and pictures.

In addition to the Finnish lakes, the different parts of the Baltic Sea are also present. You might as well upload observations and other information for marine areas as for lakes. More >

Ice conditions & Water temperature

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Ice conditions:     pm_ice0__21x21.png No ice cover     pm_ice1__21x21.png Partial ice cover     pm_ice3__21x21.png Uniform ice cover, cm
Water temperature:     pm_temp1__21x21.png < 10 °C     pm_temp2__21x21.png 10-15 °C     pm_temp3__21x21.png > 15 °C
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Finnish lakes are relatively shallow. The deepest one is Päijänne (yhd.).

The Baltic Sea is shallow too. It reaches a maximum of 459 meters at Landsortsjupet.

Random picture

Porkkala itä/Väransbyn uimaranta
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Espoon kaupungin ulkoilualueen Väransbyn uimaranta (KI 31.8.2015)

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