--- title: "Lac du Bourget weather forecast and climate by season" url: "https://cparici.com/en/meteo-lac-du-bourget-forecast/" markdown_url: "https://cparici.com/en/meteo-lac-du-bourget-forecast.md" type: "post" date_published: "2026-03-19T17:39:37+00:00" date_modified: "2026-05-07T05:25:50+00:00" language: "en-US" renderer_version: "3" --- # Lac du Bourget weather forecast and climate by season ## Content ![Lac du Bourget weather](https://cparici.com/wp-content/uploads/2026/03/Meteo-lac-du-Bourget.jpg) #### Popular searches #### Categories No results [See all results](#) # Lac du Bourget weather, forecasts and climate by season ## Lac du Bourget weather forecast ![loader-image](https://cparici.com/wp-content/plugins/location-weather-pro/assets/images/spinner.svg) Aix-les Bains 10:22 pm, Sep 3, 2026 ![weather icon](https://cparici.com/wp-content/plugins/location-weather-pro/assets/images/icons/weather-icons/01n.svg) 18°C | °F L: 17° H: 20° Feels like 18°C | °F° clear sky ** Humidity: 71 % ** Pressure: 1023 hPa ** 0 Km/h ** Wind Gust: 0 Km/h ** UV Index: 0 ** Precipitation: 0 mm ** Clouds: 6% ** Rain Chance: 0% ** Visibility: 10 km ** Sunrise: 6:59 am ** Sunset: 8:12 pm Weather from OpenWeatherMap ## Spring at Lac du Bourget: softness and renewal Visit **climate at the lake and in [the region](https://cparici.com/en/savoie/) (the [surroundings](https://cparici.com/en/lac-du-bourget/), [Aix-les-Bains](https://cparici.com/en/aix-les-bains/))**Spring is marked by a gradual return to mild weather and the awakening of the surrounding countryside. Between March and May, temperatures generally oscillate between 12°C and 20°C, with increasingly sunny days. This is the ideal season to enjoy the Alpine landscapes in full bloom, particularly around Aix-les-Bains and the shores of the lake. Precipitation remains moderate but can be frequent, typical of a **transitional climate between alpine and continental influences**. Mornings can still be cool, especially in March, but afternoons quickly become pleasant. It's the perfect time of year for hiking, biking and water sports. **To remember this spring:** - Mild temperatures (12°C to 20°C) - Nature in bloom - A few regular showers - Ideal for outdoor activities Lac du Bourget Direct Vacation Rentals [**Starts from 255.00€ ![Villa overlooking Lac du Bourget - 8 pers](https://cparici.com/wp-content/uploads/2026/05/Villa-8-personnes-vue-sur-le-lac-du-Bourget-Exterieur-3-scaled-1-520x397.webp) ### Villa overlooking Lac du Bourget - 8 pers Viviers-du-Lac - View of Lac du Bourget](https://cparici.com/en/ad/villa-overlooking-lac-du-bourget-8-pers/) [**Starts from 250.00€ ![Chalet du Bonheur with heated pool, jacuzzi and sauna - Aix-les-Bains](https://cparici.com/wp-content/uploads/2026/04/Chalet-6-personnes-piscine-jacuzzi-sauna-a-Aix-les-Bains-Exterieur-2-1-scaled-3-520x397.webp) ### Chalet du Bonheur with heated pool, jacuzzi and sauna - Aix-les-Bains Aix-les-Bains](https://cparici.com/en/ad/chalet-du-bonheur-with-heated-pool-jacuzzi-and-sauna-aix-les-bains/) [**Starts from 270.00€ ![Superb air-conditioned apartment facing the Casino d'Aix-les-Bains](https://cparici.com/wp-content/uploads/2026/05/Magnifique-T4-grande-terrasse-face-Casino-Aix-les-Bains-salon-exterieur-2-scaled-1-520x397.jpg) ### Superb air-conditioned apartment facing the Casino d'Aix-les-Bains Opposite the Casino d'Aix-les-Bains](https://cparici.com/en/ad/superb-air-conditioned-apartment-facing-casino-daix-les-bains-2/) [**Starts from 230.00€ ![Villa with swimming pool lac d'Aiguebelette - 10 people](https://cparici.com/wp-content/uploads/2026/05/Villa-10-personnes-avec-piscine-Lac-dAiguebelette-Piscine-5-1-520x397.webp) ### Villa with swimming pool lac d'Aiguebelette - 10 people Aiguebelette-le-Lac](https://cparici.com/en/ad/villa-with-pool-lac-daiguebelette-10-people/) [**Starts from 200.00€ ![12-person villa overlooking Lake Aiguebelette](https://cparici.com/wp-content/uploads/2026/05/Villa-12-personnes-a-Aiguebelette-vue-sur-le-lac-Exterieur-2-scaled-1-520x397.webp) ### 12-person villa overlooking Lake Aiguebelette Saint-Alban-de-Montbel, lake view](https://cparici.com/en/ad/12-person-villa-overlooking-lake-daiguebelette/) [**Starts from 460.00€ ![Villa with heated pool and lake view - 10 Pers](https://cparici.com/wp-content/uploads/2026/05/Villa-avec-vue-exceptionnelle-sur-le-Lac-piscine-chauffee-vue-drone-scaled-1-520x397.webp) ### Villa with heated pool and lake view - 10 Pers Le Bourget-du-Lac](https://cparici.com/en/ad/villa-with-heated-pool-and-lake-view-10-pers/) [**Starts from 210.00€ ![Villa with swimming pool - 6 pers - Aix-les-Bains](https://cparici.com/wp-content/uploads/2026/05/Magnifique-villa-avec-piscine-chauffee-et-clim-proche-Aix-les-Bains-Exterieur-6-scaled-1-520x397.jpg) ### Villa with swimming pool - 6 pers - Aix-les-Bains Aix-les-Bains](https://cparici.com/en/ad/villa-with-pool-6-pers-aix-les-bains/) [**Starts from €150.00 ![Chalet with private access to Lake Aiguebelette - 4 Pers](https://cparici.com/wp-content/uploads/2026/05/Chalet-4-personnes-acces-privatif-au-lac-dAiguebelette-Exterieur-4-scaled-1-520x397.webp) ### Chalet with private access to Lake Aiguebelette - 4 Pers Aiguebelette-le-Lac](https://cparici.com/en/ad/chalet-with-private-access-to-lake-daiguebelette-4-pers/) [**Starts from 100.00€ ![Apartment at the foot of the chairlift 6 Pers - Arêches-Beaufort](https://cparici.com/wp-content/uploads/2026/05/Superbe-T3-au-pied-du-telesiege-Areches-Beaufort-immeuble-scaled-1-520x397.jpg) ### Apartment at the foot of the chairlift 6 Pers - Arêches-Beaufort Arêches-Beaufort Center](https://cparici.com/en/ad/apartment-at-the-foot-of-the-telesiege-6-pers-areches-beaufort/) ### Lac du Bourget summer weather: warm and sunny Summer is the most popular time to visit the lake. Visit **climate at the lake** is warm and sunny, with daytime temperatures averaging between 25°C and 30°C. The lake water can reach 24°C, making it the perfect place for a swim. The days are long and bright, ideal for enjoying the beaches and water sports such as paddling, kayaking and sailing. However, as is often the case in mountainous areas, thunderstorms can occur at the end of the day, bringing brief but sometimes intense rain. **Summer highlights:** - High temperatures (25°C to 30°C) - Warm, pleasant lake water - Lots of sunshine - Risk of thunderstorms at the end of the day ### Autumn at Lac du Bourget: color and serenity Visit **climate at Lac du Bourget in autumn** is particularly appreciated for its flamboyantly colored landscapes. Between September and November, temperatures gradually drop, from 22°C in September to around 10°C in November. This season often offers beautiful sunny days, especially in early autumn, with soft light ideal for photography. Precipitation becomes more frequent as winter approaches, and mornings can be foggy around the lake. **To remember in autumn:** - Moderate to cool temperatures (10°C to 22°C) - Colorful landscapes - Quiet, less touristy atmosphere - Frequent morning fog ### Winter on Lac du Bourget: cool and peaceful In winter, the **climate at the lake**becomes colder, with temperatures between 0°C and 8°C. Although the lake rarely freezes, the atmosphere can be misty, especially in the morning. The days are shorter and the sunshine is variable, but the setting remains magnificent, with the surrounding mountains sometimes covered in snow. It's an ideal season to enjoy the peace and quiet, the spas at Aix-les-Bains and the nearby ski resorts. **To remember in winter:** - Cold temperatures (0°C to 8°C) - Calm and relaxing atmosphere - Frequent fog - Close to ski resorts ### Lac du Bourget weather summary table SeasonAverage temperaturesSunshineSpecial featuresSpring12°C to 20°CFair to goodFlowering, showersSummer25°C to 30°CVery highSwimming, thunderstormsAutumn10°C to 22°CGoodColors, calmWinter0°C to 8°CVariableFog, nearby snow ## FAQ - Lac du Bourget weather ### What's the climate like around Lac du Bourget? Lac du Bourget enjoys a **[semi-continental climate](https://fr.wikipedia.org/wiki/Lac_du_Bourget) mountain-influenced** : - Warm, sunny summers - Cool winters with occasional fog - Mild but changeable shoulder seasons ### When is the best time to visit Lac du Bourget? The best period is from **May to September** : - June to August: ideal for swimming and water sports - May and September: perfect for hiking with fewer tourists ### What is the water temperature in Lac du Bourget? - Spring: 12 to 18°C - Summer: 20 to 26°C (sometimes higher during heatwaves) - Autumn: 14 to 20°C - Winter: 5 to 10°C ### Is Lac du Bourget windy? Yes, the lake can be influenced by several winds: - **The kiss** cold, dry north wind - **The south wind** milder but sometimes unstable These winds can create waves, especially at the end of the day. ### How often does it rain on Lac du Bourget? Precipitation is **moderate but regular**with : - Frequent summer thunderstorms - Rainy spells in spring and autumn ### Is there fog on the lake? Yes, especially in autumn and winter. Fog can be dense in the morning, but usually dissipates during the day. ### What are the best weather conditions for activities? - **Swimming** warm weather, light wind, water > 22°C - **Sailing / paddle** moderate and stable wind - **Hiking** Spring and autumn to avoid hot weather ### Can the climate change quickly? Yes, as is often the case in mountainous areas: - Summer thunderstorms can develop rapidly - Winds can pick up in a matter of hours ### Where can I check the Lac du Bourget weather forecast live? 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