Mayflies
Stoneflies
Caddisflies
Damselflies & dragonflies
Gammarids
- Ecology: Good
- Chemical: Unknown
Rules at a glance
- Fly only
Water temperature for Atlantic Salmon
Cool — slow9°C est.ideal 10–16°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
Excellent — water temperature is right today, though time of day could be better.
Likely species
Caddisflies
Damselflies & dragonflies
Hatch timeline · todayPeak at 12:00
12:00(now) — Autumn Olive
Stage: On emergersApproach: Emerger or dryActivity: 64%
Also:Black Midge53%Autumn Needle Fly51%
Peak emergence windowDegree-days at peak8 food groups active
Peak activity at 12:00 — Autumn Olive (Autumn Olive, Peak emergence window)
Sub-surface · on the nymphunder the surface
Hatch predictions
Top nymph shown — see all 2 guilds as a supporter.
Start free trial14-day free trial. Cancel anytime.
Evidence
Survey-backed · regionalHigh confidence
Backed by regional invertebrate surveys; no sampling on this exact reach yet.
Through the year
0–3 scale · October 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
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
Fly box · Atlantic Salmon
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
Uppland, Sweden Terrain map
Water quality (WFD)
Why this score · for Atlantic Salmon
- Temperature10030% weight
- Flow6025% weight
- Clarity9520% weight
- Feeding Time5015% weight
- Pressure8510% weight
Directions
Seasons & zones
- Salmon late May → end July
- Sea trout 3.º Saturday in March → 30 November
Sea trout: Variable seasonal (2026)
Related guides
Booking & contacts
Älvkarleby / lower Dalälven
Water temperature for Atlantic Salmon
Cool — slow9°C est.ideal 10–16°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
Excellent — water temperature is right today, though time of day could be better.
Likely species
Caddisflies
Damselflies & dragonflies
Hatch timeline · todayPeak at 12:00
12:00(now) — Autumn Olive
Stage: On emergersApproach: Emerger or dryActivity: 64%
Also:Black Midge53%Autumn Needle Fly51%
Peak emergence windowDegree-days at peak8 food groups active
Peak activity at 12:00 — Autumn Olive (Autumn Olive, Peak emergence window)
Sub-surface · on the nymphunder the surface
Hatch predictions
Top nymph shown — see all 2 guilds as a supporter.
Start free trial14-day free trial. Cancel anytime.
Evidence
Survey-backed · regionalHigh confidence
Backed by regional invertebrate surveys; no sampling on this exact reach yet.
Through the year
0–3 scale · October 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
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
Fly box · Atlantic Salmon
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
Uppland, Sweden Terrain map
Water quality (WFD)
- Ecology: Good
- Chemical: Unknown
Why this score · for Atlantic Salmon
- Temperature10030% weight
- Flow6025% weight
- Clarity9520% weight
- Feeding Time5015% weight
- Pressure8510% weight
Directions
Seasons & zones
- Salmon late May → end July
- Sea trout 3.º Saturday in March → 30 November
Sea trout: Variable seasonal (2026)
Related guides
Booking & contacts