Rules at a glance
- Permit required
Water temperature for Atlantic Salmon
Cool — slow7°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
Good — time of day is working for you, but water temperature is the limiting factor today.
Hatch timeline · todayPeak at 10am
Hatch predictions
Today's headline hatch shown — see all 5 active hatches hour by hour with Pro.
Start free trial14-day free trial. Cancel anytime.
Sub-surface · on the nymphunder the surface
Hatch predictions
Top nymph shown — see all 2 guilds with Pro.
Start free trial14-day free trial. Cancel anytime.
Evidence
Records-basedModerate confidence
Based on species-occurrence records, not local invertebrate surveys.
Salmon run timing
2024 season
Through the year
0–3 scale · September highlighted
J
F
M
A
M
J
J
A
S
O
N
D
Salmon runRun
1
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
Atlantic Salmon fly box
Permits & access
Permit required — see local rules.
- Very limited rods and advance booking are standard, but Grímsa is more about scarce intimate water than sheer river scale
- Catch-and-release and current river-specific rules should be checked before fishing.
What's coming
Plan ahead
5-day outlook
Other water nearby · 5
Gallery · 2
Tröllafossar rapids, Grímsá Terrain map
Why this score · for Atlantic Salmon
- Temperature4330% weight
- Flow4525% weight
- Clarity9520% weight
- Feeding Time10015% weight
- Pressure8510% weight
Directions
Seasons & zones
- Salmon 24 June → 30 September
Related guides
Booking & contacts
Permits & access
- veiðum.is — GrímsaCurrent public booking page for Grímsa salmon permits.
- Veiðiheimar — Grímsá & TunguáAlternate public booking route for the Grímsá system.
- Veiðikortið — Icelandic Fishing CardNational card covers selected trout and char waters only — not valid for salmon beats on this river.
- VeiðiheimarPermit booking
Grímsa
Water temperature for Atlantic Salmon
Cool — slow7°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
Good — time of day is working for you, but water temperature is the limiting factor today.
Hatch timeline · todayPeak at 10am
Hatch predictions
Today's headline hatch shown — see all 5 active hatches hour by hour with Pro.
Start free trial14-day free trial. Cancel anytime.
Sub-surface · on the nymphunder the surface
Hatch predictions
Top nymph shown — see all 2 guilds with Pro.
Start free trial14-day free trial. Cancel anytime.
Evidence
Records-basedModerate confidence
Based on species-occurrence records, not local invertebrate surveys.
Salmon run timing
2024 season
Through the year
0–3 scale · September highlighted
J
F
M
A
M
J
J
A
S
O
N
D
Salmon runRun
1
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
Atlantic Salmon fly box
Permits & access
Permit required — see local rules.
- Very limited rods and advance booking are standard, but Grímsa is more about scarce intimate water than sheer river scale
- Catch-and-release and current river-specific rules should be checked before fishing.
What's coming
Plan ahead
5-day outlook
Other water nearby · 5
Gallery · 2
Tröllafossar rapids, Grímsá Terrain map
Why this score · for Atlantic Salmon
- Temperature4330% weight
- Flow4525% weight
- Clarity9520% weight
- Feeding Time10015% weight
- Pressure8510% weight
Directions
Seasons & zones
- Salmon 24 June → 30 September
Related guides
Booking & contacts
Permits & access
- veiðum.is — GrímsaCurrent public booking page for Grímsa salmon permits.
- Veiðiheimar — Grímsá & TunguáAlternate public booking route for the Grímsá system.
- Veiðikortið — Icelandic Fishing CardNational card covers selected trout and char waters only — not valid for salmon beats on this river.
- VeiðiheimarPermit booking