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 great red sedge is on. Wind-blown Terrestrials 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.
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. In the ripple, a bushy searching dry (Hopper, Shipman's, Elk Hair Caddis) outperforms flush emergers — it stays visible and holds the surface tension.
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. In the ripple, a bushy searching dry (Hopper, Shipman's, Elk Hair Caddis) outperforms flush emergers — it stays visible and holds the surface tension.
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.
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
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
85%
Cloud50%
Wind100%
Temp100%
Conditions are ideal for Lake Thun — wind, cloud and temperature all line up.
Fishing better nearby · 4
Gallery · 1
Terrain map
About this water
Why this score
- Wind conditions (ripple) closely match what this water fishes best in.
- Temperature (cool) is in the sweet spot for summer fishing.
- Great Red 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
- Lake trout1 March → 31 December
Related guides
Booking & contacts
Lake Thun
Google Places
Large Bernese Oberland lake backed by the Eiger, Mönch and Jungfrau, deep and cold and clear.
How to fish it · for trout
When
The great red sedge is on. Wind-blown Terrestrials 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.
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. In the ripple, a bushy searching dry (Hopper, Shipman's, Elk Hair Caddis) outperforms flush emergers — it stays visible and holds the surface tension.
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. In the ripple, a bushy searching dry (Hopper, Shipman's, Elk Hair Caddis) outperforms flush emergers — it stays visible and holds the surface tension.
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.
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
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
85%
Cloud50%
Wind100%
Temp100%
Conditions are ideal for Lake Thun — wind, cloud and temperature all line up.
Fishing better nearby · 4
Gallery · 1
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.
- Temperature (cool) is in the sweet spot for summer fishing.
- Great Red 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
- Lake trout1 March → 31 December
Related guides
Booking & contacts