Lake · Germany
Dümmer
Lake in Lower Saxony, Germany
- Area
- 12.8km²
- Max depth
- 2m
- Average depth
- 1.1m
- Elevation
- 34m a.s.l.
- Shoreline
- 16km
- Volume
- 0.014km³
Dümmer is a lake in Germany. It covers 12.8 km². On average it is 1.1 m deep, and 2 m at its deepest point. Its surface lies 34 m above sea level.
Plan your visit
Stay, sail and get there
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The water
How warm is Dümmer?
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 30 days a year, from around 27 December to 25 January.
On the shore, afternoons reach 24 °C on average in July and 4 °C in January. The driest month is April (38 mm of rain), the wettest August (73 mm).
Average surface temperature measured by the Landsat 8 satellite between 2013 and 2021 at the point furthest from the shore (68 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 | — | 4 | -1 | 72 | 14 | 0.8 | 21 |
| February | 2 | 3 | 5 | -1 | 53 | 12 | 2.2 | 20 |
| March | 6 | 9 | 9 | 0 | 50 | 12 | 3.8 | 19 |
| April | 12 | 14 | 14 | 4 | 38 | 10 | 6.1 | 16 |
| May | 17 | 19 | 18 | 8 | 56 | 11 | 6.6 | 16 |
| June | 21 | 22 | 22 | 12 | 61 | 13 | 6.8 | 15 |
| July | 23 | 23 | 24 | 14 | 72 | 15 | 6.6 | 15 |
| August | 22 | 23 | 23 | 13 | 73 | 14 | 5.9 | 15 |
| September | 18 | 20 | 19 | 10 | 55 | 12 | 5.0 | 16 |
| October | 12 | 15 | 14 | 6 | 60 | 13 | 3.0 | 18 |
| November | 5 | 8 | 8 | 3 | 63 | 13 | 1.2 | 18 |
| December | 1 | 2 | 5 | 0 | 71 | 14 | 0.6 | 20 |
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 18 days before flowing out.
- Its catchment drains 587 km² of land.
- About 8.8 m³ of water flow out every second, on average.
Around the shore
What's around Dümmer
Counted within 1.5 km of the shoreline in OpenStreetMap, the map anyone can edit.
- 6beaches and swimming spots
Surfeinstiegstelle Rohrdommel, Badestelle Hüde and 4 more
- 18campsites
Dümmer See / Lembruch, Dümmer See / Damme Dümmerlohausen, Leckermeyer-Hannker, Rennegarbe-Keßmann, Wohnmobil-Wiese Dümmer See and 13 more
- 5boat hire and water-sport clubs
Segelschule Hüder Sand, Segelschule Schlick, Hafen am Turm mit der Uhr, Am Turm mit der Uhr, Segler-Club Dümmer e. V.
- 13marinas and slipways
Hafengemeinschaft SVOH + SCC, SCLD - Segel Club Lohne Dümmersee, BSC, SVH, SVRH and 8 more
- —ferry piers
- 8viewpoints
Aussichtsturm Nordseite, Aussichtsturm Westseite, Aussichtsturm, Aussichtsturm Südseite, Aussichtsturm Ostseite and 3 more
- 16hotels, B&Bs and chalets
Hotel Zur Alten Post, Stratmanns Haus am See, Jugend- und Freizeitzentrum Dümmer, Dümmerhotel Strandlust, Schlicks Dümmer Kojen and 11 more
- —fishing spots
- 19restaurants and cafés
Towns on the shore
- Hüde1,070 people
Nearest airport with scheduled flights: Münster Osnabrück Airport (FMO), 61 km in a straight line.
Car hire at FMO airport (Greven)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 | 3.7 | 5.0 | 9.0 | 14.5 | 18.3 | 21.6 | 23.5 | 23.1 | 19.4 | 14.1 | 8.5 | 4.6 |
| 2020 | +3.0 | +3.6 | +1.0 | +1.7 | −0.7 | +0.7 | −1.4 | +2.3 | +1.1 | −0.1 | +2.0 | +1.0 |
| 2021 | −0.5 | ±0.0 | +0.8 | −3.4 | −3.2 | +2.4 | −0.3 | −1.7 | +1.2 | +0.6 | −0.2 | +0.6 |
| 2022 | +2.2 | +3.3 | +2.1 | −1.6 | +1.3 | +1.2 | +0.6 | +3.7 | −0.1 | +3.4 | +1.7 | −0.3 |
| 2023 | +2.7 | +2.5 | −0.1 | −1.2 | +0.4 | +2.8 | −0.7 | −0.5 | +3.9 | +1.4 | +0.4 | +1.9 |
| 2024 | +0.8 | +4.3 | +2.6 | −0.5 | +2.4 | −0.6 | −0.5 | +1.2 | +0.7 | +1.1 | −0.3 | +1.4 |
| 2025 | +0.5 | ±0.0 | +2.7 | +1.6 | +0.4 | +1.0 | −0.2 | +0.5 | +0.1 | +0.1 | +0.5 | +1.8 |
+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 (Q688459) · 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.
