
Lake · Austria
Klopeiner See
Lake in Carinthia, Austria
- Area
- 1.0km²
- Max depth
- 48m
- Average depth
- 7.4m
- Elevation
- 444m a.s.l.
- Shoreline
- 4.5km
- Volume
- 0.007km³
Klopeiner See is a lake in Austria. It covers 1.0 km². On average it is 7.4 m deep, and 48 m at its deepest point. Its surface lies 444 m above sea level.
Plan your visit
Stay, sail and get there
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The water
How warm is Klopeiner See?
The water is warmest in July, around 25 °C at the surface, and coldest in January, around 0 °C. The surface averages 20 °C or more from June to September: comfortable for most swimmers.
The lake usually freezes over for about 16 days a year, from around 8 January to 23 January.
On the shore, afternoons reach 24 °C on average in July and 1 °C in January. The driest month is January (45 mm of rain), the wettest August (125 mm).
Average surface temperature measured by the Landsat 8 satellite between 2013 and 2021 at the point furthest from the shore (137 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 | -7 | 45 | 7 | 2.9 | 7 |
| February | 2 | 4 | 2 | -6 | 56 | 8 | 4.1 | 7 |
| March | 7 | 10 | 7 | -2 | 61 | 9 | 5.3 | 7 |
| April | 13 | 16 | 13 | 2 | 71 | 13 | 6.1 | 7 |
| May | 19 | 21 | 18 | 6 | 100 | 15 | 6.9 | 6 |
| June | 23 | 24 | 22 | 11 | 110 | 16 | 7.9 | 5 |
| July | 25 | 25 | 24 | 13 | 114 | 16 | 8.4 | 5 |
| August | 24 | 25 | 24 | 12 | 125 | 15 | 7.5 | 5 |
| September | 21 | 23 | 18 | 8 | 124 | 13 | 5.6 | 6 |
| October | 15 | 18 | 13 | 4 | 94 | 11 | 4.4 | 6 |
| November | 8 | 11 | 7 | 0 | 91 | 12 | 2.4 | 6 |
| December | 2 | 5 | 2 | -5 | 67 | 9 | 2.3 | 6 |
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 3.3 years before flowing out.
- Its catchment drains 4 km² of land.
- About 0.1 m³ of water flow out every second, on average.
Around the shore
What's around Klopeiner See
Counted within 1.5 km of the shoreline in OpenStreetMap, the map anyone can edit.
- 1beaches and swimming spots
- 4campsites
ÖTB Campingplatz, Camping Nord, Ferienzentrum Süd, Panoramacamping
- —boat hire and water-sport clubs
- 2marinas and slipways
- —ferry piers
- 7viewpoints
Aussichtspunkt Kitzelberg and 6 more
- 74hotels, B&Bs and chalets
Alte Post, Sonne, Strandpension Liane, Sonnelino, Raschun and 69 more
- —fishing spots
- 21restaurants and cafés
Nearest airport with scheduled flights: Klagenfurt Airport (KLU), 19 km in a straight line.
Car hire at KLU airport (Klagenfurt am Wörthersee)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 | 2.2 | 7.1 | 12.8 | 17.5 | 21.9 | 24.2 | 23.6 | 18.1 | 12.9 | 6.9 | 1.8 |
| 2020 | +2.7 | +3.3 | −0.1 | +1.8 | −0.8 | −2.0 | −0.6 | −0.2 | +0.6 | −1.1 | +0.7 | −1.3 |
| 2021 | −1.9 | +2.6 | +0.2 | −3.1 | −2.8 | +1.5 | −0.5 | −1.2 | +2.3 | −0.8 | −0.5 | −1.6 |
| 2022 | −0.3 | +1.7 | +0.4 | −1.4 | +1.2 | +2.5 | +2.6 | +1.5 | −0.6 | +4.0 | +0.7 | −0.5 |
| 2023 | +1.3 | −0.3 | +0.9 | −2.4 | −1.5 | +0.2 | −0.6 | −0.7 | +2.5 | +3.5 | +0.3 | +1.9 |
| 2024 | +1.3 | +5.5 | +2.7 | +0.8 | −0.2 | −0.6 | +0.8 | +3.3 | +0.1 | +1.3 | −0.4 | +0.8 |
| 2025 | +2.4 | +0.3 | +1.4 | +1.3 | −0.9 | +3.1 | −0.6 | +1.0 | +1.3 | −0.2 | −0.1 | +2.1 |
+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 (Q687150) · 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.

