The water quality of Twiske; De Leers at Oostzaan
What is the swimming water like? Twiske; De Leers? On the water map below you'll see the swimming location in its immediate vicinity. On the right of on this page you will find all information about the current weather, at the bottom of the swimming spots in the area.
Open the Water Map for Oostzaan in full window
Recreation area the Twiske is located ten north of Amsterdam between Den Ilp, Landsmeer en Oostzaan. It consists of diverse lakes, ditches, meadows and bushes and is surrounded by a dike with cycling and walking. De Leers, aan de Stootersplas, is a of the seven officialële swimming locations in the area.
Swimming spots nearby
2. De kuifeend; jagersveld: water quality is good
3. De smient, jagersveld: water quality is good
4. Het twiske baaiegat naturistenstrand: water quality is good
5. Het twiske speelsloot: water quality is good
6. Het twiske; doesstrand: water quality is good
7. Het twiske; kure-jan strand: water quality is good
8. Het twiske; schoorlstrand: water quality is good
9. Het twiske; vennegatstrand: water quality is good
10. Jagersveld; de fuut: water quality is good
11. Spartelvijver twiske poort: water quality is good
12. Twiske; de leers: water quality is good
The weather in Oostzaan, now:
6.4°C
Zwaar bewolkt
Wind Force bft | Knopen | 11 km/h
Wind direction ZW
Today: Buiig en koel.
Extended weather forecast for Oostzaan (click)
Staying in the area?
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Swim at Twiske; De Leers
Summary
Measurements
E.coli46 n/dl
Enterococci46 n/dl
Water temperature~14.8 °C
Measurement timeQuality: 21-04-2026Temperature: 13 mei, 20:10
Facilities & contact
Sunbathing area
Floatline
Descending bottom
Sandy beach
Horeca
Dogs allowed
First Aid
Parking
Bicycle shed
Fresh water
Waste bins
Information board
Accessible by public transport
Surf possibilities
Floatline
Descending bottom
Sandy beach
Horeca
Dogs allowed
First Aid
Parking
Bicycle shed
Fresh water
Waste bins
Information board
Accessible by public transport
Surf possibilities
Address
Noorderlaaik, Oostzaan
Administrator
Recreatieschap Het Twiske
info@twiske-waterland.nl
Phone: 075-684 43 38
https://www.twiske-waterland.nl
Noorderlaaik, Oostzaan
Administrator
Recreatieschap Het Twiske
info@twiske-waterland.nl
Phone: 075-684 43 38
https://www.twiske-waterland.nl
Information board
Details
The water temperature value comes from the nearest official Rijkswaterstaat measuring station and is an approximation for this location. Always take local conditions into account, it is usually colder in deeper water than on the shore!
The water quality measurement is based on the amount of bacteria in nanograms per deciliter (n /dl). In this case it concerns the intestinal bacteria Escherichia coli (E.coli) and intestinal enterococci, which occur in the feces of both animals and humans. A suddenly high value is often related to bird droppings in the water, for example, but can certainly also have other causes. It is unwise to swim in water where these values exceed the standards. The water manager also inspects the bathing water areas for other types of pollution, such as blue-green algae or other toxic algae and general safety features.
The water quality measurement is based on the amount of bacteria in nanograms per deciliter (n /dl). In this case it concerns the intestinal bacteria Escherichia coli (E.coli) and intestinal enterococci, which occur in the feces of both animals and humans. A suddenly high value is often related to bird droppings in the water, for example, but can certainly also have other causes. It is unwise to swim in water where these values exceed the standards. The water manager also inspects the bathing water areas for other types of pollution, such as blue-green algae or other toxic algae and general safety features.