Reservoir · Poland
Włocławek Reservoir
Body of water
- Area
- 56.7km²
- Max depth
- 6m
- Average depth
- 7.2m
- Elevation
- 50m a.s.l.
- Shoreline
- 106km
- Volume
- 0.408km³
Włocławek Reservoir is a reservoir in Poland. It covers 56.7 km². On average it is 7.2 m deep, and 6 m at its deepest point. Its surface lies 50 m above sea level.
Plan your visit
Stay, sail and get there
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The water
How warm is Włocławek Reservoir?
The water is warmest in July, around 23 °C at the surface, and coldest in January, around 0 °C. The surface averages 20 °C or more from June to August: comfortable for most swimmers.
The lake usually freezes over for about 48 days a year, from around 24 December to 9 February.
On the shore, afternoons reach 26 °C on average in July and -1 °C in January. The driest month is April (35 mm of rain), the wettest July (79 mm).
Average surface temperature measured by the Landsat 8 satellite between 2013 and 2021 at the point furthest from the shore (84 readings). Shallow bays and beaches are often warmer.
From above
The whole lake from space
Month by month
The year at the lake, month by month
Not a forecast: these are averages over many years. Water is the 2013–2021 average; air, rain, sun and wind are the 1991–2020 average.
Water: 2013–2021 averageClimate: 1991–2020 average
| Month | Water°C | Water high°C | Air high°C | Air low°C | Rainmm | Rainy daysdays | Sunh/day | Windkm/h |
|---|---|---|---|---|---|---|---|---|
| January | Ice | — | -1 | -6 | 45 | 11 | 0.9 | 19 |
| February | 1 | 2 | 2 | -5 | 37 | 9 | 2.2 | 18 |
| March | 5 | 7 | 7 | -2 | 37 | 10 | 4.3 | 18 |
| April | 11 | 14 | 14 | 3 | 35 | 9 | 6.6 | 16 |
| May | 17 | 20 | 19 | 8 | 69 | 12 | 7.6 | 14 |
| June | 22 | 23 | 23 | 12 | 64 | 13 | 7.8 | 14 |
| July | 23 | 23 | 26 | 15 | 79 | 14 | 7.2 | 14 |
| August | 22 | 23 | 25 | 14 | 59 | 11 | 6.8 | 13 |
| September | 18 | 20 | 20 | 9 | 50 | 10 | 5.4 | 15 |
| October | 12 | 15 | 13 | 4 | 48 | 9 | 3.1 | 16 |
| November | 6 | 9 | 6 | 1 | 43 | 10 | 0.9 | 17 |
| December | 1 | 3 | 1 | -3 | 44 | 11 | 0.5 | 18 |
Water: LakeTEMP (Landsat 8, 2013–2021). Air, rain, sun and wind: NASA POWER, 1991–2020 averages. A rainy day has at least 1 mm of rain. Sunshine hours are derived from measured solar radiation.
Size & depth
How big, how deep
- On average, water stays in the lake for about 5 days before flowing out.
- Its catchment drains 170,890 km² of land.
- About 976 m³ of water flow out every second, on average.
- Its shoreline is 4.0 times longer than a circle of the same area: plenty of bays and inlets.
Around the shore
What's around Włocławek Reservoir
Counted within 1.5 km of the shoreline in OpenStreetMap, the map anyone can edit.
- 6beaches and swimming spots
Plaża Sobótka and 5 more
- 1campsites
Przystań Wodna na Zalewie Włocławskim
- —boat hire and water-sport clubs
- 24marinas and slipways
Awanport górny, Awanport dolny, Przystań Mirek, PTTK Morka, Klub Żeglarski "Petrochemia" Płock and 19 more
- —ferry piers
- 13viewpoints
Góra Zamkowa and 12 more
- 23hotels, B&Bs and chalets
Zajazd Niva, Gosciniec, Hotel Amore Płock, Noclegi nad Wisłą, Pod Rumianym Jabłkiem and 18 more
- —fishing spots
- 55restaurants and cafés
Towns on the shore
- Płock127,474 people
- Dobrzyń nad Wisłą2,268 people
- Maszewo Duże1,332 people
- Nowy Duninów873 people
Nearest airport with scheduled flights: Warsaw Modlin Airport (WMI), 96 km in a straight line.
Car hire at WMI airport (Nowy Dwór Mazowiecki)Discover Cars · Affiliate linkOpenStreetMap is built by volunteers: when a number is low, it may just mean nobody has mapped it yet.
Recent years
How each month compared
Afternoon high on the shore. The first row is the reference, the 1991–2020 average in °C; the years below show the difference from it: warmer in orange, cooler in blue.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1991–2020 average | -0.7 | 1.7 | 6.9 | 14.0 | 19.3 | 23.1 | 25.7 | 25.3 | 19.9 | 12.9 | 6.4 | 1.3 |
| 2020 | +4.2 | +4.7 | +1.5 | +0.8 | −2.8 | +0.3 | −1.3 | +1.3 | +1.2 | +0.8 | +0.8 | +0.6 |
| 2021 | −0.6 | −2.2 | −0.3 | −3.3 | −2.8 | +2.1 | +0.6 | −3.6 | −0.7 | +0.8 | +0.4 | −1.6 |
| 2022 | +3.0 | +3.6 | +1.1 | −2.4 | +0.1 | +2.3 | −0.2 | +1.5 | −2.2 | +2.8 | −0.6 | −0.8 |
| 2023 | +4.5 | +1.6 | +0.9 | −1.2 | −1.0 | +1.0 | +0.5 | +0.9 | +5.2 | +1.7 | −0.3 | +1.5 |
| 2024 | +2.1 | +6.1 | +3.4 | +1.2 | +2.5 | +1.1 | +0.6 | +1.7 | +3.9 | +1.5 | −0.7 | +2.2 |
| 2025 | +4.0 | +0.4 | +4.0 | +2.6 | −1.7 | +1.5 | −0.4 | +0.1 | +1.6 | −0.3 | −0.9 | +0.9 |
+1 warmer than usual −1 cooler than usual
About these numbers
| Outline, area, depth, volume | HydroLAKES v1.0 (Messager et al. 2016) · CC BY 4.0 |
|---|---|
| Water temperature and ice | LakeTEMP v1 (Korver et al. 2024), Landsat 8 2013–2021 · CC BY 4.0 |
| Air, rain, sun, wind | NASA POWER, 1991–2020 · public domain |
| Names and description | Wikidata (Q7371646) · CC0 |
| Around the shore | © OpenStreetMap contributors · ODbL |
| Images | EOX Sentinel-2 cloudless 2016 · CC BY 4.0; Wikimedia Commons |
Every figure is an average or a count from a public dataset. Licences and methods: data sources.
