Water temperature for Atlantic Salmon
Ideal15°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
Poor — water temperature is working for you, but water clarity is the limiting factor today.
Likely species
Mayflies
Mayflies- Large dark oliveMost likely#14–16 · EmergerDead-drift the emerger — it's sitting in the film.
- Blue-winged oliveAlso possible#16–18 · DunDuns are up; a sherry spinner fall may follow.
- Iron BlueAlso possible#16–18 · DunCold, grey day — the dun sits long. Good dry-fly water.
Caddisflies
Caddisflies- GrannomMost likely#14–16 · PupaPupa first, then dries as the adults come off.
- Satin sedgeAlso possibleLower confidence#12–14 · Egg-layingSkitter it at dusk — this one's fished, not dead-drifted.
- Net-spinning caddis (S. Europe)Also possibleLower confidence#12–14–16 · PupaWidespread riffle net-spinner; evening emergence.
Hatch timeline · todayQuiet day
Hatch predictions
Today's headline hatch shown — see all 2 active hatches hour by hour with Pro.
Start free trial14-day free trial. Cancel anytime.
Sub-surface · on the nymphunder the surface
Hatch predictions
See the full sub-surface read with Pro.
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 · August highlighted
J
F
M
A
M
J
J
A
S
O
N
D
Salmon runRun
1
2
2
2
2
2
1
CapererHatch
2
3
3
2
Heather FlyHatch
2
2
Autumn DunHatch
2
3
2
Daddy Long LegsHatch
2
3
2
Numbers are intensity 0 (none) to 3 (peak) — a guide, not a guarantee.
Ranked for today
Atlantic Salmon fly box
What's coming
Plan ahead
5-day outlook
Fishing better nearby · 5
Gallery · 2
Lower Drumnaspar Terrain map
Why this score · for Atlantic Salmon
- Temperature10030% weight
- Flow4025% weight
- Clarity1520% weight
- Feeding Time5015% weight
- Pressure8510% weight
Directions
Seasons & zones
- Salmon 1 April → 20 October
Sea trout: Variable seasonal (2026)
Related guides
Casting instructors near here
Booking & contacts
Glenelly River
Water temperature for Atlantic Salmon
Ideal15°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
Poor — water temperature is working for you, but water clarity is the limiting factor today.
Likely species
Mayflies
- Large dark oliveMost likely#14–16 · EmergerDead-drift the emerger — it's sitting in the film.
- Blue-winged oliveAlso possible#16–18 · DunDuns are up; a sherry spinner fall may follow.
- Iron BlueAlso possible#16–18 · DunCold, grey day — the dun sits long. Good dry-fly water.
Caddisflies
- GrannomMost likely#14–16 · PupaPupa first, then dries as the adults come off.
- Satin sedgeAlso possibleLower confidence#12–14 · Egg-layingSkitter it at dusk — this one's fished, not dead-drifted.
- Net-spinning caddis (S. Europe)Also possibleLower confidence#12–14–16 · PupaWidespread riffle net-spinner; evening emergence.
Hatch timeline · todayQuiet day
Hatch predictions
Today's headline hatch shown — see all 2 active hatches hour by hour with Pro.
Start free trial14-day free trial. Cancel anytime.
Sub-surface · on the nymphunder the surface
Hatch predictions
See the full sub-surface read with Pro.
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 · August highlighted
J
F
M
A
M
J
J
A
S
O
N
D
Salmon runRun
1
2
2
2
2
2
1
CapererHatch
2
3
3
2
Heather FlyHatch
2
2
Autumn DunHatch
2
3
2
Daddy Long LegsHatch
2
3
2
Numbers are intensity 0 (none) to 3 (peak) — a guide, not a guarantee.
Ranked for today
Atlantic Salmon fly box
What's coming
Plan ahead
5-day outlook
Fishing better nearby · 5
Gallery · 2
Lower Drumnaspar Terrain map
Why this score · for Atlantic Salmon
- Temperature10030% weight
- Flow4025% weight
- Clarity1520% weight
- Feeding Time5015% weight
- Pressure8510% weight
Directions
Seasons & zones
- Salmon 1 April → 20 October
Sea trout: Variable seasonal (2026)
Related guides
Casting instructors near here
Booking & contacts