Large Bernese Oberland lake backed by the Eiger, Mönch and Jungfrau, deep and cold and clear. Lake trout, Arctic char, and brown trout. Trolling and fly fishing from boats—the mountain views are as reliable as the fishing.
- Lake
- Limestone
How to fish it · for trout
When
The sedge is on. Murrough may also come into play as the day warms. The ripple is helpful — fish should move onto the feed and a slow-drifted team or single wet will cover water well. Dusk on the lake is prime time for surface feeding — stay out as long as light allows.
Where
Set up a broadside drift and cover the water systematically. Work a bushy searching pattern on the bob and drop a contrasting nymph on the point.
The plan
Plan A
Set up a broadside drift and cover the water systematically. Work a bushy searching pattern on the bob and drop a contrasting nymph on the point.
Plan B
If the main plan is not working, switch to a smaller, more imitative pattern fished slower and deeper. A change of drift angle can also make a difference.
Watch for
Evening tends to be the best period in summer — stay late if you can for a sedge or spinner fall.
Boat — drift
A gentle ripple is ideal for drifting — broadside drift covering the wind lanes should be productive.
Sub-surface · on the nymphunder the surface
Hatch predictions
See the full sub-surface read with Pro.
Start free trial14-day free trial. Cancel anytime.
Beyond the hatch · worth watchingambient prey
Hatch predictions
Top prey shown — see all 5 with Pro.
Start free trial14-day free trial. Cancel anytime.
Through the year
0–3 scale · July highlighted
J
F
M
A
M
J
J
A
S
O
N
D
Trout seasonSeason
1
2
2
2
2
2
2
2
2
1
Mayfly (Green Drake)Hatch
2
2
Daddy Long LegsHatch
2
3
2
Black MidgeHatch
2
3
3
3
3
3
3
3
3
3
3
2
Silverhorns & LonghornsHatch
2
3
3
3
2
Numbers are intensity 0 (none) to 3 (peak) — a guide, not a guarantee.
Ranked for today
Trout fly box
6-10 · Pattern
Swing
Permits & access
Permit required — see local rules.
- Bernese lake under Bern rules
- Boat hire is widely available, but check the exact cantonal lake permit structure before fishing.
What's coming
Plan ahead
5-day outlook
Condition match
79%
Cloud70%
Wind100%
Temp60%
A good match for Lake Thun — most conditions are close to what it fishes best in.
Other water nearby · 4
Gallery · 2
Lake Thun, Bernese Oberland Terrain map
About this water
Why this score
- Wind conditions (ripple) closely match what this water fishes best in.
- Sedge is in its seasonal window, boosting the chance of targeted feeding.
Directions
Seasons & zones
- Trout1 March → 31 December
- Charvaries_by_canton → varies_by_canton
Alpine char (Saibling) — seasons, minimum sizes, and retention rules are set by the Bern canton's fisheries authority (Amt für Jagd und Fischerei). Different cantons may apply different closed seasons or catch restrictions for char conservation. Always verify locally before targeting char.
- Lake trout1 March → 31 December
Lake trout (Seeforelle) — seasons and regulations are set by the Bern canton's fisheries authority. Minimum sizes, retention rules, and boat permits vary. Check current regulations with the cantonal office before fishing.
Related guides
Booking & contacts
Lake Thun
Contributor photo
Lake Thun, Bernese Oberland
Gabrielle Merk
Large Bernese Oberland lake backed by the Eiger, Mönch and Jungfrau, deep and cold and clear.
How to fish it · for trout
When
The sedge is on. Murrough may also come into play as the day warms. The ripple is helpful — fish should move onto the feed and a slow-drifted team or single wet will cover water well. Dusk on the lake is prime time for surface feeding — stay out as long as light allows.
Where
Set up a broadside drift and cover the water systematically. Work a bushy searching pattern on the bob and drop a contrasting nymph on the point.
The plan
Plan A
Set up a broadside drift and cover the water systematically. Work a bushy searching pattern on the bob and drop a contrasting nymph on the point.
Plan B
If the main plan is not working, switch to a smaller, more imitative pattern fished slower and deeper. A change of drift angle can also make a difference.
Watch for
Evening tends to be the best period in summer — stay late if you can for a sedge or spinner fall.
Boat — drift
A gentle ripple is ideal for drifting — broadside drift covering the wind lanes should be productive.
Sub-surface · on the nymphunder the surface
Hatch predictions
See the full sub-surface read with Pro.
Start free trial14-day free trial. Cancel anytime.
Beyond the hatch · worth watchingambient prey
Hatch predictions
Top prey shown — see all 5 with Pro.
Start free trial14-day free trial. Cancel anytime.
Through the year
0–3 scale · July highlighted
J
F
M
A
M
J
J
A
S
O
N
D
Trout seasonSeason
1
2
2
2
2
2
2
2
2
1
Mayfly (Green Drake)Hatch
2
2
Daddy Long LegsHatch
2
3
2
Black MidgeHatch
2
3
3
3
3
3
3
3
3
3
3
2
Silverhorns & LonghornsHatch
2
3
3
3
2
Numbers are intensity 0 (none) to 3 (peak) — a guide, not a guarantee.
Ranked for today
Trout fly box
6-10 · Pattern
Swing
Permits & access
Permit required — see local rules.
- Bernese lake under Bern rules
- Boat hire is widely available, but check the exact cantonal lake permit structure before fishing.
What's coming
Plan ahead
5-day outlook
Condition match
79%
Cloud70%
Wind100%
Temp60%
A good match for Lake Thun — most conditions are close to what it fishes best in.
Other water nearby · 4
Gallery · 2
Lake Thun, Bernese Oberland Terrain map
About this water
Large Bernese Oberland lake backed by the Eiger, Mönch and Jungfrau, deep and cold and clear. Lake trout, Arctic char, and brown trout. Trolling and fly fishing from boats—the mountain views are as reliable as the fishing.
- Lake
- Limestone
Why this score
- Wind conditions (ripple) closely match what this water fishes best in.
- Sedge is in its seasonal window, boosting the chance of targeted feeding.
Directions
Seasons & zones
- Trout1 March → 31 December
- Charvaries_by_canton → varies_by_canton
Alpine char (Saibling) — seasons, minimum sizes, and retention rules are set by the Bern canton's fisheries authority (Amt für Jagd und Fischerei). Different cantons may apply different closed seasons or catch restrictions for char conservation. Always verify locally before targeting char.
- Lake trout1 March → 31 December
Lake trout (Seeforelle) — seasons and regulations are set by the Bern canton's fisheries authority. Minimum sizes, retention rules, and boat permits vary. Check current regulations with the cantonal office before fishing.
Related guides
Booking & contacts