Reservoir · Switzerland
Lac de la Gruyère
Body of water
- Area
- 6.3km²
- Max depth
- 75m
- Average depth
- 35m
- Elevation
- 669m a.s.l.
- Shoreline
- 32km
- Volume
- 0.220km³
Lac de la Gruyère is a reservoir in Switzerland. It covers 6.3 km². On average it is 35 m deep, and 75 m at its deepest point. Its surface lies 669 m above sea level.
Plan your visit
Stay, sail and get there
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The water
How warm is Lac de la Gruyère?
The water is warmest in July, around 22 °C at the surface, and coldest in January, around 2 °C. The surface averages 20 °C or more from June to August: comfortable for most swimmers.
It does not normally freeze in winter.
On the shore, afternoons reach 22 °C on average in July and 1 °C in January. The driest month is February (72 mm of rain), the wettest May (126 mm).
Average surface temperature measured by the Landsat 8 satellite between 2013 and 2021 at the point furthest from the shore (136 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 | 2 | 2 | 1 | -6 | 92 | 12 | 3.3 | 10 |
| February | 3 | 4 | 2 | -6 | 72 | 11 | 4.4 | 10 |
| March | 7 | 9 | 6 | -2 | 90 | 13 | 5.5 | 10 |
| April | 12 | 14 | 12 | 2 | 81 | 13 | 6.3 | 9 |
| May | 16 | 18 | 15 | 6 | 126 | 17 | 6.6 | 9 |
| June | 20 | 22 | 20 | 11 | 114 | 16 | 8.5 | 9 |
| July | 22 | 22 | 22 | 12 | 115 | 15 | 8.9 | 9 |
| August | 22 | 22 | 21 | 12 | 120 | 14 | 7.9 | 8 |
| September | 20 | 21 | 17 | 8 | 81 | 13 | 6.9 | 8 |
| October | 15 | 18 | 13 | 4 | 94 | 13 | 5.0 | 8 |
| November | 9 | 12 | 6 | -1 | 90 | 13 | 3.1 | 9 |
| December | 4 | 6 | 2 | -4 | 101 | 14 | 2.6 | 10 |
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 4 months before flowing out.
- Its catchment drains 952 km² of land.
- About 22 m³ of water flow out every second, on average.
- Its shoreline is 3.6 times longer than a circle of the same area: plenty of bays and inlets.
Around the shore
What's around Lac de la Gruyère
Counted within 1.5 km of the shoreline in OpenStreetMap, the map anyone can edit.
- 10beaches and swimming spots
Plage de Corbières, Plage de la Roche, Plage de Pont-la-Ville, Plage de Gumefens, Morlon Beach and 5 more
- 1campsites
Camping du Lac
- 3boat hire and water-sport clubs
Sur Momont, Pont Thusy, Canoës Gruyère
- 4marinas and slipways
- —ferry piers
- 16viewpoints
Tête d'éléphant and 15 more
- 6hotels, B&Bs and chalets
Restoroute Motel de la Gruyère, Chalet St-Paul, Centre Shalom, Les Laviaux, Minotel Le Gruyérien and 1 more
- —fishing spots
- 14restaurants and cafés
Towns on the shore
- Bulle23,438 people
- La Tour-de-Trême3,686 people
- Broc2,148 people
- Riaz1,894 people
- Marsens1,571 people
- La Roche1,405 people
- Treyvaux1,349 people
- Pont-la-Ville
Nearest airport with scheduled flights: Bern Airport (BRN), 41 km in a straight line.
Car hire at BRN airport (Bern)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 | 1.1 | 2.0 | 6.5 | 11.5 | 15.2 | 19.7 | 21.7 | 21.3 | 17.3 | 13.1 | 6.5 | 2.1 |
| 2020 | +2.5 | +3.6 | +1.0 | +3.3 | +1.4 | −1.9 | +1.0 | +1.5 | +1.6 | −2.5 | +2.7 | ±0.0 |
| 2021 | −1.6 | +4.0 | +0.4 | −2.2 | −2.6 | +1.2 | −1.5 | −1.7 | +1.9 | ±0.0 | −0.8 | +0.3 |
| 2022 | +1.4 | +2.1 | +3.3 | −0.1 | +3.0 | +3.8 | +4.3 | +4.0 | +0.1 | +4.0 | +1.3 | +1.5 |
| 2023 | +0.5 | +3.4 | +1.5 | −1.8 | +0.4 | +2.2 | +2.2 | +2.9 | +5.7 | +4.0 | −0.7 | +1.5 |
| 2024 | +1.9 | +5.3 | +2.5 | −0.2 | −0.2 | −0.2 | +1.3 | +2.6 | −1.5 | +1.6 | +1.8 | +0.6 |
| 2025 | +1.8 | +3.2 | +2.4 | +2.3 | +0.3 | +3.9 | −0.2 | +2.4 | −0.1 | −1.2 | +0.3 | +2.3 |
+1 warmer than usual −1 cooler than usual
Nearby
More lakes nearby
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 (Q682189) · 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.
