The Lac d'Aiguebelette (French pronunciation: [lak dɛɡbəlɛt]; Lake of Aiguebelette) is a natural lake north of the Chartreuse Mountains in the French Alps and just west of the Chaîne de l'Épine in the Jura Mountains. It is located within five communes in the Savoie department: Aiguebelette-le-Lac, Lépin-le-Lac, Saint-Alban-de-Montbel, Novalaise and Nances.

Quick Facts Location, Coordinates ...

Lac d'Aiguebelette
A view of the Lac d'Aiguebelette
Lac d'Aiguebelette
Location	Savoie
Coordinates	45°33′10″N 5°47′50″E
Primary inflows	Leysse de Novalaise
Primary outflows	Tiers
Catchment area	70 km2 (27 sq mi)
Basin countries	France
Surface area	5.45 km2 (2.10 sq mi)
Max. depth	71 m (233 ft)
Water volume	166×10^6 m3 (135,000 acre⋅ft)
Surface elevation	390.5 m (1,281 ft)
Frozen	1909, 1929, 1941, 1942, 1956
Islands	2
Settlements	Aiguebelette-le-Lac, Lépin-le-Lac, Saint-Alban-de-Montbel, Novalaise, Nances

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The lake hosted the 1997 and 2015 World Rowing Championships.^[1][2]

Lake Aiguebelette has a oceanic climate (Köppen climate classification Cfb) closely bordering on a humid subtropical climate (Cfa). The average annual temperature in Lake Aiguebelette is 11.8 °C (53.2 °F). The average annual rainfall is 1,306.8 mm (51.45 in) with May as the wettest month. The temperatures are highest on average in July, at around 21.2 °C (70.2 °F), and lowest in January, at around 2.7 °C (36.9 °F). The highest temperature ever recorded in Lake Aiguebelette was 36.9 °C (98.4 °F) on 24 July 2019; the coldest temperature ever recorded was −14.3 °C (6.3 °F) on 20 December 2009.

The Chaîne de l'Épine ridge is crossed by hiking trails; paragliders launch from there during the summer.

Motorboats are not allowed on the lake to preserve the silence and wildlife along the lake. There are noted views of the lake from the church at Saint-Alban-de-Montbel and the mountain ridges.