Freestone · Volcanic · Suðurland, IS

Tungufljót

The Faxi waterfall cascading over a wide rock ledge on the Tungufljót River, Iceland, with blue-white whitewater and a grassy far bank.

One of Iceland's best-known sea-trout rivers, famous for large sea-run brown trout and serious late-season migratory fishing.

Poor · Sea Trout
Black & Silver Tube · 1-2 inch
Poorlive now
Slow going — better windows ahead
Low and clear — careful approach country. Stale fish in low clear water spook easily — pick your hour.
90% confidence
What moved it
  • LevelLight rain recentlyNo gauge reading
  • Water temp8.9°C
  • ClarityClear
Today's fly
BS
Black & Silver Tube1-2 inch
In deep pools and dark water, silhouette and contrast do the work colour cannot. A fly that reads as black against depth is enough. Fish it broadside, hold the swing, let it hang at the dangle — that is when the best fish take.
Conditions on the water
Estimate
Level
Light rain recently
No gauge reading
Water temp8.9°C
ClarityClear
Weather8°C
WindNW 26 km/h
Pressure1002 hPa
Rain · recent7.8 mm
Rain · ahead22.0 mm

No gauge on this water — readings are regional estimates from weather, not a live gauge.

Water temperature for Sea Trout
Ideal
9°C est.ideal 8–15°C
0°14°28°
How to fish it · for Sea Trout
When
From dusk into the first half of the night.
Where
Deeper pools and slower glides · hold water and current seams.
Method
Fish dark patterns on a sink-tip or lightly sunk line, especially near structure.
Kit
10 ft #6/7 rod, floating line with a sink-tip option, 8–10 lb fluoro tippet for the swing.
Why this works
Excellent — water temperature is right today, though insect activity could be better. Outside the typical run window — score reduced. ⏰ Sea trout become most active after dark, but this stretch closes at 21:01 — before that window fully opens. Fish hard in the last legal hour: overcast skies and warm evenings can bring fish on early even in fading light. ⏰ Sea trout become most active after dark, but this stretch closes at 20:57 — before that window fully opens. Fish hard in the last legal hour: overcast skies and warm evenings can bring fish on early even in fading light.
Hatch timeline · todayPeak at 10am

Hatch predictions

Today's headline hatch shown — see all 12 active hatches hour by hour with Pro.

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Sub-surface · on the nymphunder the surface

Hatch predictions

Top nymph shown — see all 4 guilds with Pro.

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Evidence
Records-basedModerate confidence

Based on species-occurrence records, not local invertebrate surveys.

Through the year
0–3 scale · September highlighted
J
F
M
A
M
J
J
A
S
O
N
D
Nordic SpringflyHatch
2
3
3
2
Ladoga CaddisHatch
2
3
2
Evening SedgeHatch
2
3
3
3
2
Arctic Cased CaddisHatch
1
2
2
2
1

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

Ranked for today
Sea Trout fly box
BS
Black & Silver TubeTop
1-2 inch · Tube
In deep pools and dark water, silhouette and contrast do the work colour cannot. A fly that reads as black against depth is enough. Fish it broadside, hold the swing, let it hang at the dangle — that is when the best fish take.
Medicine Fly
Medicine Fly
8-12 · Streamer
Slim and mobile — fished sunk through the pool when surface work is not producing. Consistently takes fish that will not come to the surface.
SF
Snake Fly (Black)
2-4 inch · Streamer
A mobile eel-like profile that undulates through deep pools — effective when sea trout are lying deep and not responding to conventional wets.
Permits & access
Permit required — see local rules.
  • River-specific booking and catch rules apply
  • Check the current operator conditions before fishing, especially for late-season sea-trout access.
What's coming
Plan ahead
5-day outlook
Other water nearby · 5
Vatnamót
16 km
Sea trout
Fossalár
20 km
Sea trout · Char
Geirlandsá
22 km
Sea trout · Char
Eystri-Rangá
43 km
Salmon · Sea trout · Brown trout
Vestari-Rangá
43 km
Salmon · Sea trout
Gallery · 2
  1. The Faxi waterfall cascading over a wide rock ledge on the Tungufljót River, Iceland, with blue-white whitewater and a grassy far bank.
    Faxi on the Tungufljót
  2. Terrain map of the venue
    Terrain map
About this water

One of Iceland's best-known sea-trout rivers, famous for large sea-run brown trout and serious late-season migratory fishing. A key south-coast sea-trout system that broadens the file beyond salmon prestige.

Sea trout here

One of the best-known Icelandic sea-trout rivers with very high average size

  • River
  • Volcanic
Why this score · for Sea Trout
  • Temperature10028% weight
  • Flow8022% weight
  • Clarity8518% weight
  • Feeding Time5513% weight
  • Pressure857% weight
  • Insect activity5112% weight
Directions
Apple MapsGoogle Maps
Seasons & zones
  • Sea trout check current river booking conditions → check current river booking conditions

Sea trout: Variable seasonal (2026)

Related guides
Euro Nymphingsubsurface methods
Booking & contacts