Stillwater · Volcanic · Þingvellir / Suðurland

Þingvallavatn

Panoramic view of Þingvallavatn seen from Road 36, the lake's open water and the rift-valley landscape.

Iceland's largest natural lake, partly within Þingvellir National Park and famous for trophy brown trout plus multiple Arctic char forms.

Marginal · Trout
Killer · 8-14
A patient day, if you fancy it
Good wave on — drift country. Slow going — pick your moments and do not force it.
40% confidence
limited data

Þingvallavatn is often best in june september.

What moved it
  • WindN 18 km/hGentle breeze
Today's fly
Killer
Killer8-14
Static, sub-surface
Conditions on the water
Live gauge
Wind
Gentle breeze
N 18 km/h
N
N
from the north
Wave20 cm ripple
Water temp
Air temp14°C
CloudClear
Pressure1012 hPa
Rain · recent0.0 mm

Some readings unavailable — check directly before fishing.

How to fish it · for Trout
When
Through the Icelandic season — late April through October on Þingvallavatn. The famous urriði (Þingvallavatn brown trout) average bigger than anywhere in Iceland; long midsummer light extends fishing into the small hours.
Where
Drift lines along the rift cliffs and lava-shore margins. Þingvallavatn is a tectonic-rift lake — fish hold on the structural edges.
Method
Drift on a floater with a team of three — small wets and dabblers; midge-tip when fish hold deeper. Drogue on the bigger drifts.
Kit
10 ft #6/7 boat rod; floating and intermediate lines; 6 to 8 lb fluoro. Drogue and a long-handled net — Þingvallavatn browns run large.
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. Keep a sedge-style dry or emerger on a short leader for the evening rise.

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

Top nymph shown — see all 2 guilds with Pro.

Start free trial

14-day free trial. Cancel anytime.

Beyond the hatch · worth watchingambient prey

Hatch predictions

Top prey shown — see all 5 with Pro.

Start free trial

14-day free trial. Cancel anytime.

Through the year
0–3 scale · August highlighted
J
F
M
A
M
J
J
A
S
O
N
D
Trout seasonSeason
1
2
2
2
2
1
Black MidgeHatch
2
3
3
3
3
3
3
3
3
3
3
2
Daddy Long LegsHatch
2
3
2
Lake OliveHatch
1
2
2
2
2
2
1
Silverhorns & LonghornsHatch
1
2
2
2
1

Numbers are intensity 0 (none) to 3 (peak) — a guide, not a guarantee.

Ranked for today
Trout fly box
RB
Red Buzzer
12-18 · Pattern
Static, sub-surface
Permits & access
Permit required — see local rules.
  • In the Þingvellir national-park area, the season is 20 April to 15 September
  • From 20 April to 1 June only fly is allowed and all brown trout must be released
  • Fishing is forbidden in Öxará and at its mouth, and Hallvík closes from 1 July to 31 August.
What's coming
Plan ahead
5-day outlook
Condition match
52%
Cloud25%
Wind65%
Temp60%

A reasonable day here, though cloud isn't quite in the sweet spot.

Other water nearby · 1
Gallery · 6
  1. Panoramic view of Þingvallavatn seen from Road 36, the lake's open water and the rift-valley landscape.
    Þingvallavatn panorama
  2. Panoramic view of Þingvallavatn from the Hakið outlook, Þingvellir National Park, broad open water.
    Þingvallavatn from Hakið
  3. Summer evening light over Þingvallavatn, Iceland's largest natural lake.
    Þingvallavatn evening
  4. Þingvallavatn lake at sunset, Iceland.
    Þingvallavatn at sunset
  5. Panoramic view of Þingvallavatn with mountains, lava fields and rocky shoreline, Iceland.
    Þingvallavatn and lava shore
  6. Terrain map of the venue
    Terrain map
About this water

Iceland's largest natural lake, partly within Þingvellir National Park and famous for trophy brown trout plus multiple Arctic char forms. Spring-fed, crystal-clear water in a tectonic rift valley. The practical season in the national-park area runs from 20 April to 15 September, with stricter early-season fly-only and brown-trout-release rules.

  • Lake
  • Volcanic
Why this score
  • summer conditions with clear skies and breezy wind.
Directions
Seasons & zones
  • Trout 20 April15 September
  • Char 20 April15 September

    Þingvallavatn holds four genetically distinct Arctic char morphs (farðableikja, murta, kuðungableikja, ljósbleikja) — a world-unique conservation resource. Season: 20 April – 15 September per Þingvellir National Park rules. AREA CLOSURE: fishing forbidden in Hallvík 1 July – 31 August (char spawning). METHOD: fly only until 1 June; fly/spoon/worm from 2 June. One rod per licence. Obtain permit from Þjóðgarðurinn á Þingvöllum before fishing.

Related guides
Booking & contacts
Permits & access