Mayflies
- Ecology: High
- Chemical: Unknown
WFD classification · FI67_300_001
Water temperature for Atlantic Salmon
Ideal12°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
Fair conditions based on river hydrology and migration patterns.
Likely species
Mayflies
- Blue-winged oliveMost likely#16–18 · DunDuns are up; a sherry spinner fall may follow.
- Green drakeAlso possibleLower confidence#8–10 · DunDuns are up — the Spent Gnat spinners fall at dusk.
Hatch timeline · todayPeak at 6am
Hatch predictions
Today's headline hatch shown — see all 6 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.
Beyond the hatch · worth watchingambient prey
Hatch predictions
See what else is on the menu with Pro.
Start free trial14-day free trial. Cancel anytime.
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
Grayling seasonSeason
1
1
Large Dark OliveHatch
1
2
2
1
Blue Winged OliveHatch
1
2
2
2
2
1
Autumn OliveHatch
1
2
1
GrannomHatch
1
1
Numbers are intensity 0 (none) to 3 (peak) — a guide, not a guarantee.
Ranked for today
Atlantic Salmon fly box
traditional large hook / tube variants · Salmon fly
Permits & access
Permit required — see local rules.
- Fishing management fee (kalastonhoitomaksu) + lure fishing permit
- Fishing management fee and permits available online at eraluvat.fi
- No residency requirement.
What's coming
Plan ahead
5-day outlook
Gallery · 2
Muonionjoki — image via Wikipedia (Muonionjoki) Terrain map
Water quality (WFD)
The full read · show the working · for Atlantic Salmon · confidence 75%
How the river scores — hydrology factors
Water heightMedium Ideal0.0
Recent riseNone0.0
Falling after liftNot Applicable0.0
Water temperatureCool To Moderate0.0
Time in seasonOpening Period0.0
ClarityClearing0.0
Hydrology base0.0
Legal gate: Unknown Check Local Rules
Can you trust it?
Water temperatureair-to-water estimateestimated
Level / flowon-river gaugeobserved
Directions
Seasons & zones
- Salmon 8 June → 25 August
- Trout Opens June–September
- Grayling 1 July → 31 August
Arctic Lapland grayling north of 67°N: Year-round protection on some Arctic grayling populations. Muonionjoki (border tributary) has specific regulations per intergovernmental talks. July–August fishing typically restricted to maintain wild stocks. Check eraluvat.fi for annual updates and local regulations.
Rules differ by water type — check the local regulations.
Prime sport 1 July → 31 August
Related guides
Booking & contacts
Muonionjoki
Water temperature for Atlantic Salmon
Ideal12°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
Fair conditions based on river hydrology and migration patterns.
Likely species
Mayflies
- Blue-winged oliveMost likely#16–18 · DunDuns are up; a sherry spinner fall may follow.
- Green drakeAlso possibleLower confidence#8–10 · DunDuns are up — the Spent Gnat spinners fall at dusk.
Hatch timeline · todayPeak at 6am
Hatch predictions
Today's headline hatch shown — see all 6 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.
Beyond the hatch · worth watchingambient prey
Hatch predictions
See what else is on the menu with Pro.
Start free trial14-day free trial. Cancel anytime.
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
Grayling seasonSeason
1
1
Large Dark OliveHatch
1
2
2
1
Blue Winged OliveHatch
1
2
2
2
2
1
Autumn OliveHatch
1
2
1
GrannomHatch
1
1
Numbers are intensity 0 (none) to 3 (peak) — a guide, not a guarantee.
Ranked for today
Atlantic Salmon fly box
traditional large hook / tube variants · Salmon fly
Permits & access
Permit required — see local rules.
- Fishing management fee (kalastonhoitomaksu) + lure fishing permit
- Fishing management fee and permits available online at eraluvat.fi
- No residency requirement.
What's coming
Plan ahead
5-day outlook
Gallery · 2
Muonionjoki — image via Wikipedia (Muonionjoki) Terrain map
Water quality (WFD)
- Ecology: High
- Chemical: Unknown
WFD classification · FI67_300_001
The full read · show the working · for Atlantic Salmon · confidence 75%
How the river scores — hydrology factors
Water heightMedium Ideal0.0
Recent riseNone0.0
Falling after liftNot Applicable0.0
Water temperatureCool To Moderate0.0
Time in seasonOpening Period0.0
ClarityClearing0.0
Hydrology base0.0
Legal gate: Unknown Check Local Rules
Can you trust it?
Water temperatureair-to-water estimateestimated
Level / flowon-river gaugeobserved
Directions
Seasons & zones
- Salmon 8 June → 25 August
- Trout Opens June–September
- Grayling 1 July → 31 August
Arctic Lapland grayling north of 67°N: Year-round protection on some Arctic grayling populations. Muonionjoki (border tributary) has specific regulations per intergovernmental talks. July–August fishing typically restricted to maintain wild stocks. Check eraluvat.fi for annual updates and local regulations.
Rules differ by water type — check the local regulations.
Prime sport 1 July → 31 August
Related guides
Booking & contacts