Grundlsee - Impression #1 | © Bettina Scheck Grundlsee - Impression #1 | © Bettina Scheck

Grundlsee

Grundlsee

The Grundlsee is the largest lake in Styria and a popular natural and excursion destination in the Ausseerland – known for its clear water, stunning mountain scenery, and diverse recreational opportunities.

24.5 °C
Water temperature
Today: 14.08.2026
Very good
Water quality
4.22 km²
Area
Season
Season 01.01.2026 - 31.12.2026

In the western part of Styria, nestled in the mountain world of the Toten Gebirge, lies Grundlsee – also known as the Styrian Sea.

With a length of around five kilometers and an area of almost five square kilometers, it is the largest lake in Styria. The clear water, excellent water quality, and surrounding natural scenery make it an attractive destination for those seeking relaxation and nature lovers.

Around the lake, several public swimming areas invite you to swim – for example, in Gößl, at the Strandbad Grundlsee, or at the Seeklause.
Water sports such as sailing, rowing, stand-up paddleboarding, or pedal boating are also possible. The Grundlsee is rich in fish and popular with anglers; fishing licenses are available on site. A continuous hiking trail mostly runs directly along the shore and offers impressive views.

A special experience is offered by the Grundlsee shipping with the Three-Lakes Tour, which connects Grundlsee with Toplitzsee and Kammersee. The tour combines motor and canoe trips through an almost untouched natural landscape.

The Grundlsee is easily accessible – via the B145 and with connections to public transport from Bad Aussee.
As part of the Ausseerland, Grundlsee represents a unique combination of nature, tradition, and leisure quality in Styria.

Photos & videos

You can visit the Grundlsee at any time of the year. Every season is special at the Styrian Sea, the largest lake in Styria.

01/01/2026 - 31/12/2028
Monday - Sunday
all day

The Grundlsee has freely accessible bathing beaches (except for a few private beaches).
From April 1st to November 30th, a parking fee is charged, which benefits the municipality of Grundlsee.

Contact

Informationsbüro Grundlsee
Mosern 25
8993 Grundlsee

Additional services

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Southern Styria

What the weather will be like Grundlsee (717m)

Today, 16.08.2026

Mostly sunny in the morning, becoming cloudy during the day. Thunderstorms will be likely towards evening.
Morning
very sunny
18°C
sr.Regenwahrscheinlichkeit 0%
sr.Windstärke 5 km/h
Noon
sunny
28°C
sr.Regenwahrscheinlichkeit 50%
sr.Windstärke 5 km/h
Night
rainy
22°C
sr.Regenwahrscheinlichkeit 60%
sr.Windstärke 0 km/h

Tomorrow, 17.08.2026

A high risk of thunderstorms until the afternoon, some showers will last into the evening.
Morning
rainy
16°C
sr.Regenwahrscheinlichkeit 70%
sr.Windstärke 0 km/h
Noon
rainy
19°C
sr.Regenwahrscheinlichkeit 85%
sr.Windstärke 5 km/h
Night
cloudy
14°C
sr.Regenwahrscheinlichkeit 85%
sr.Windstärke 5 km/h

Forecast

18.08.2026
cloudy
12°C 19°C
19.08.2026
rainy
13°C 25°C
20.08.2026
rainy
14°C 24°C