Freestone · Mixed · Uppsala, SE

Älvkarleby / lower Dalälven

A calm wooded river reach lined with golden autumn birch trees reflected in still water.

älvkarleby marks the lower Dalälven where Sweden's longest river system meets accessible salmon and sea-trout fishing.

Fair · Atlantic Salmon
Cascade · size 6–10 doubles or small tube
Fairlive now
Decent — worth a look
Low and clear — careful approach country. Low water tactics — small singles, riffling hitch in the smooth glides.
70% confidence
What moved it
  • LevelLight rain recentlyNo gauge reading
  • Water temp17.7°C
  • ClarityClear
Today's fly
Cascade
Cascadesize 6–10 doubles or small tube
Smaller alternative when bigger tubes feel overdressed.
Conditions on the water
Estimate
Level
Light rain recently
No gauge reading
Water temp17.7°C
ClarityClear
Weather16°C
WindNW 11 km/h
Pressure1002 hPa
Rain · recent6.3 mm
Rain · ahead0.0 mm

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

Water temperature for Atlantic Salmon
Warm — slow
18°C est.ideal 10–14°C
0°14°28°
How to fish it · for Atlantic Salmon
When
Morning into early afternoon.
Where
Pool tails, steadier runs, and any water with pace.
Method
Fish a sensible line-and-fly combination for the height and pace of water.
Kit
13 ft #8/9 double-hander in spate, 10 ft #8 single in low water. Floating line plus a fast-sink tip. 12–15 lb fluoro tippet.
Why this works
Good — water clarity is working for you, but water temperature is the limiting factor today.
Hatch timeline · todayPeak at 6pm

Hatch predictions

Today's headline hatch shown — see all 11 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 3 guilds with Pro.

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Beyond the hatch · worth watchingambient prey

Hatch predictions

Top prey shown — see all 2 with Pro.

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Evidence
Survey-backed · regionalModerate confidence

Backed by regional invertebrate surveys; no sampling on this exact reach yet.

Through the year
0–3 scale · August highlighted
J
F
M
A
M
J
J
A
S
O
N
D
Salmon runRun
1
2
1
Sea trout runRun
1
2
2
2
2
2
2
2
1
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
Atlantic Salmon fly box
SB
Small black tube
tube small · Swing
Beats · 2 · 1 reaches

Älvkarleby is a hydro tailwater on the lower Dalälven, run as a managed, permit-led fishery rather than a wild walk-up river — Sweden's right to roam covers the banks but not the fishing. You buy a fiskekort for the operator-managed water (sectioned A/B/C with different species emphasis), and the retention rules are unusually strict: wild salmon and wild sea trout must be released, and only adipose-fin-clipped stocked fish may be kept, to a maximum of three salmonids per day with minimum sizes of 50 cm for salmon and 45 cm for sea trout. Method restrictions matter too — lead weights, live bait and braided/non-stretch lines are prohibited. Fishing is shaped by power-station flows, and the season splits into spring sea trout, summer salmon (June peak) and autumn sea trout. Confirm the current operator rules and stocking position before relying on retention.

Älvkarleby Sportfishing · 2 beatsDay rods
Älvkarleby Sportfishing, Wild-fish release & method rules
The 2 beats
Älvkarleby SportfishingGuide / lodge
Älvkarleby Sportfishing (operator)
The operator-managed fishery on the lower Dalälven below Älvkarleby — one of Sweden's classic salmon and sea-trout waters, organised into sections (A/B/C) with different species emphasis. You fish on a fiskekort, with fishing shaped by hydropower flow rather than natural spate. Three seasonal windows: spring sea trout (March–mid-May), summer salmon (late May–end July, June peak) and autumn sea trout (September–November).
Fiskekort required. Season runs from the third Saturday in March to 30 November. Hydro tailwater — flow and power-station operation dominate fishability. Section-based access (A/B/C).
Wild-fish release & method rulesGuide / lodge
Älvkarleby Sportfishing
The retention and method rules that define Älvkarleby. Wild salmon and wild sea trout must be released — only adipose-fin-clipped stocked fish may be kept, to a maximum of three salmonids per angler per day, minimum 50 cm for salmon and 45 cm for sea trout. Lead, live bait and braided/non-stretch lines are prohibited.
Wild salmon and wild sea trout must be released; keep only adipose-fin-clipped stocked fish. Max 3 salmonids/day. Min size 50 cm salmon, 45 cm sea trout. Lead weights, live bait and braided/non-stretch lines prohibited.
Permits & access
Permit required — see local rules.
  • Section-based fishery (A, B, C)
  • Wild fish must be released — only adipose-fin-clipped stocked fish may be kept
  • Daily limit 3 salmonids
  • Min 50 cm salmon, 45 cm sea trout
  • Post-2025 hatchery transition — check current stocking status.
What's coming
Plan ahead
5-day outlook
Gallery · 2
  1. A calm wooded river reach lined with golden autumn birch trees reflected in still water.
    Uppland, Sweden
  2. Terrain map of the venue
    Terrain map
About this water

älvkarleby marks the lower Dalälven where Sweden's longest river system meets accessible salmon and sea-trout fishing. A major heritage fishery with deep cultural significance, but one shaped by stocking, section rules, and hatchery logic rather than a simple wild-river destination story. Wild salmon and wild sea trout must be released — only adipose-fin-clipped stocked fish may be kept. The season splits into three windows: spring sea trout (March–mid-May), summer salmon (end of May–end of July, June peak), and autumn sea trout (September–November). SLU's Älvkarleby research station closed in 2025 after final stocking releases — the post-hatchery transition needs monitoring. Section-based fishery (A, B, C) with different species emphasis per section. Atlantic salmon are managed under national rules (Havs- och vattenmyndigheten) — quotas, size limits and catch-and-release apply and differ between Baltic and west-coast rivers; check current rules before fishing.

Sea trout here

Dual-window sea-trout fishery: spring (Mar–mid-May) and autumn (Sep–Nov). Genuine mixed destination but managed heritage structure shapes the experience.

  • Mixed
Water quality (WFD)
  • Ecology: Good
  • Chemical: Unknown
Why this score · for Atlantic Salmon
  • Temperature2930% weight
  • Flow6025% weight
  • Clarity9520% weight
  • Feeding Time6015% weight
  • Pressure8510% weight
Directions
Apple MapsGoogle Maps
Seasons & zones
  • Salmon late May → end July
  • Sea trout 3rd Saturday in March → 30 November

Sea trout: Variable seasonal (2026)

Related guides
Atlantic Salmonsalmon tacticsEuro Nymphingsubsurface methods
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