Lake Grundlsee - Impression #1 | © Steinegger

Lake Grundlsee

Grundlsee
22 °C
Water temperature
Today: 30.06.2025
Very good
Water quality
4.22 km²
Area
Season
01.01.2025 - 31.12.2025

The Grundlsee is the largest lake in Styria and a popular natural and excursion destination in the Ausseerland – known for its clear water, impressive mountain backdrop, and a variety of recreational opportunities.

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.

Contact

Infomrationsbüro Grundlsee
Mosern 25
8993 Grundlsee

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What the weather will be like

Grundlsee (717m)

Morning
very sunny
18°C
5%
5 km/h
Noon
sunny
28°C
10%
0 km/h
Night
sunny
25°C
20%
5 km/h
The day starts sunny, but will be partly cloudy in the afternoon.
Morning
very sunny
18°C
0%
5 km/h
Noon
very sunny
31°C
15%
5 km/h
Night
cloudy
27°C
35%
5 km/h
Mostly sunny throughout the day with a chance of showers towards evening.
03.07.2025
cloudy
16°C 29°C
04.07.2025
cloudy
16°C 25°C
05.07.2025
rainy
14°C 27°C