Freestone · Volcanic · Suðurland

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
River dropping into shape after a lift. Little in your favour today. Fish the certain lies, or leave it for a better one.
75% confidence
What moved it
  • LevelHeavy rain recentlyNo gauge reading
  • Water temp17.7°C
  • ClarityClearing
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
Heavy rain recently
No gauge reading
Water temp17.7°C
ClarityClearing
Weather17°C
WindE 6 km/h
Pressure1005 hPa
Rain · recent30.9 mm
Rain · ahead2.5 mm

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

Water temperature for Sea Trout
Warm — slow
18°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
Fair — time of day is working for you, but water temperature is the limiting factor today. Outside the typical run window — score reduced.
Hatch timeline · todayQuiet day

Hatch predictions

Today's headline hatch shown — see all 2 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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Beyond the hatch · worth watchingambient prey

Hatch predictions

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Evidence
ModelledModerate confidence

Modelled from regional ecology — no survey or occurrence data for this water yet.

Through the year
0–3 scale · August highlighted
J
F
M
A
M
J
J
A
S
O
N
D
GrannomHatch
2
2
Evening SedgeHatch
2
3
3
3
2
Large Dark OliveHatch
1
2
2
1
Iron BlueHatch
1
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.
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
Þjórsá
33 km
Salmon · Brown trout
Eystri-Rangá
43 km
Salmon · Sea trout · Brown 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
  • Temperature2128% weight
  • Flow7122% weight
  • Clarity8518% weight
  • Feeding Time10013% weight
  • Pressure857% weight
  • Insect activity4812% 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
Permits & access