Lake

Marynummi

For venues Poster TV view Free for beaches & venues

Today at Marynummi

3–10°C

Very Cold

Serious cold. Cold shock risk is high. Experienced swimmers with proper kit only.

Modelled from recent air temperature — the band's width is ours, not a published error figure · the label is our plain summary of the numbers, not advice

Full water temperature Conditions

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About

Experience this spot in Märynummi. Great spot for swimming and paddling, cycling, boating, water skiing, wake boarding, kayaking, canoeing, supping and wind surfing. Märynummi is located in the municipality of Salo in the region of Varsinais-Suomi in southwestern Finland. The area is characterized by forests, fields, and small lakes, and is known for its tranquil rural landscape. The scenery around Märynummi is dominated by fields of wheat, rye, and barley, as well as small patches of deciduous and coniferous forests. The lakes in the area are often surrounded by lush vegetation and reed beds, providing important habitats for many species of birds and wildlife. Overall, the area is peaceful and serene, with a strong connection to nature.

Location

What swimmers say

Activities

Swimming Cycling

Water sports

Kayaking SUP Boating Canoeing Windsurfing Waterskiing Wakeboarding

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For beaches, lidos, cafés, saunas and swim venues

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Every swimmer at your spot asks the same question: how’s the water today? A free poster or a live screen answers it — and brings your swimmers into a community that reports back.

Completely free No fee for venues, no fee for swimmers. Print the poster, open the screen, and it runs itself.
Wild Pro is optional Swimmers who want days two to seven of the forecast can subscribe — £3.99/mo or £29.99/yr. Today’s conditions and all official water quality are free for everyone, with no account.
Safety first Water temperature, wind, waves, tides and the official bathing-water rating, shown plainly so people can decide for themselves.
Live conditions Forecasts from Open-Meteo, tides from WorldTides, sea temperature from Copernicus Marine, and water quality from the agencies that test it.
Built on community Swimmers post what they found. A poster or a screen at your spot turns every swim into a report the next swimmer can use.

Print a poster Open the TV view How it works

Know another spot near here? The map opens where you are now — move the pin and add it.

Frequently asked questions

Is this lake safe for swimming?

Check the Conditions tab for surface state and wind conditions. Review the Quality tab if this is a designated bathing water. Always read recent community reports for local advice.

How cold is the water?

Check the Temperature tab for the current estimate and 7-day trend. Lakes hold heat longer than rivers but can develop a thermocline. The water below the surface can be dramatically colder.

What should I bring?

A tow float for visibility (especially important where boats operate), warm layers for after, and consider a wetsuit in colder months. Check for designated swimming areas.

What should I know before swimming here?

Cold water shock is real. Enter slowly and control your breathing. Lake water can be much colder below the surface (thermocline). Stay close to shore until you know the conditions. Watch for boat traffic and stay visible with a tow float. Check for blue-green algae warnings before swimming. Conditions change fast. Always check the latest data, read recent community reports, and swim within your ability.