Balmholz – dive site, Thunersee

Lake model for the whole lake

A decent day.

Report a dive

6.5

Ø 7.4

21.10.–02.11.

Dive index / 10

Visibility indicator

Good

Satellite (Sentinel-2) of 27.10.2026: approx. 7.4 m near the shore

7.4 m

since 21.10.

Wind

3 Bft

12 km/h, gusts 26 km/h

7 km/h

next 5 days

Algae (satellite)

Low

since 21.10.

Temperature by depth

No thermocline, the lake is mixed

0 m: 13.6 °C
10 m: 13.6 °C
20 m: 13.1 °C
30 m: 8.9 °C

The next 5 days

Today
6.5

old satellite
Tue
6.5

old satellite
Wed
6.5

old satellite
Thu
6.5

old satellite
Fri
6.5

old satellite

Weather trend

Temperature °C
Rain mm/h
Sunshine min/h
Wind km/h, arrow shows wind direction

Data: Eawag Alplakes, MeteoSwiss and DWD via Open-Meteo, FOEN. The forecast is an indicator, not a guarantee of visibility. Calculated on 02.11.2026 12:10

Location

The site

Difficulty

3 moderate
Difficulty
1. 1 very easy · Gentle entry, shallow depth, no current. Suitable for training.
2. 2 easy · Easy entry. Interesting parts at moderate depth.
3. 3 moderate · Entry or depth needs experience. Navigation required.
4. 4 demanding · Great depth, current or a difficult entry. Only with experience.
5. 5 very demanding · Several difficulties together. Only for experienced divers with good planning.
Wall

4 wall
Wall
1. 1 flat · Flat bottom, no slope.
2. 2 slope · Gentle slope.
3. 3 steep slope · Steep slope with a few wall sections.
4. 4 wall · Wall over a longer stretch.
5. 5 sheer wall · Vertical or overhanging wall down to great depth.

Practical

Getting there

46.6819° N, 7.7683° E

Emergency

After a diving accident, call Rega 1414 and say «diving accident». Rega connects you to the diving physician of DAN Suisse, around the clock and free of charge. Diving accident factsheet by DAN Suisse and Rega (PDF, German)

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