Mayflies
Stoneflies
Caddisflies
Gammarids
- Ecology: Good
- Chemical: Unknown
Rules at a glance
- Free fishing
- Fly only
Water temperature for Atlantic Salmon
Ideal16°C est.ideal 10–16°C
0°14°28°
How to fish it · for Atlantic Salmon
When
Morning and evening are prime, but midday can still produce if there's cloud cover or a breeze to ruffle the surface. Overcast days fish well all day in summer.
Where
Focus on the slower water at pool edges, inside bends, and behind large boulders. Fish won't hold in the main current at this height. Streamy water that's normally too shallow can hold fish in high water.
Method
Lively swing near the surface. Floating line, the fly fishing in the top 12 inches. The fly should look alive — a small mend to accelerate at the right moment can trigger a snapping take.. Floating line. Small-medium: size 8-12. Match temperature and water colour — go smaller if clear, bigger if any colour.
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
Conditions are looking excellent for salmon. Late season — fish are beginning to colour up as spawning approaches. They become more territorial and can take aggressively. Autumnal colours (orange, copper, gold) work well. No historical catch data available for this river — prediction based on current conditions only.
Likely species
Caddisflies
- Net-spinning caddisMost likelyLower confidenceNearest relative#12–14–16 · PupaWidespread riffle net-spinner; evening emergence.
- Large sedgesAlso possibleNearest relative#8–10 · AdultBig waked sedge in the last light and after dark.
- CapererAlso possibleLower confidence#10–12 · AdultBig autumn sedge; fish dry at last light.
- Green SedgeAlso possibleLower confidenceNearest relative#10–12–14–16 · NymphFree-living green caddis larva; fast stony riffles.
Hatch timeline · todayPeak at 11 Uhr
Hatch predictions
Today's headline hatch shown — see all 12 active hatches hour by hour as a supporter.
Start free trial14-day free trial. Cancel anytime.
Sub-surface · on the nymphunder the surface
Hatch predictions
Top nymph shown — see all 3 guilds as a supporter.
Start free trial14-day free trial. Cancel anytime.
Beyond the hatch · worth watchingambient prey(1)
Hatch predictions
Top prey shown — see all 3 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 · September highlighted
J
F
M
A
M
J
J
A
S
O
N
D
Salmon runRun
1
2
2
2
2
2
1
Trout seasonSeason
1
2
2
2
2
2
2
1
March BrownHatch
2
3
2
CapererHatch
2
3
3
2
Heather FlyHatch
2
2
Autumn DunHatch
2
3
2
Numbers are intensity 0 (none) to 3 (peak) — a guide, not a guarantee.
Ranked for today
Fly box · Atlantic Salmon
Permits & access
Permit required — see local rules.
- State rod licence required (IFI)
- Sheen Falls Lodge holds exclusive fishing rights — book via the lodge
- For 2026 the River Sheen is open with a harvest surplus under the Wild Salmon & Sea Trout Tagging Scheme (S.I
- 129/2026) — harvest to 31 August under tag and the bag limit, catch-and-release from 1 September.
What's coming
Plan ahead
5-day outlook
Other water nearby · 5
Water quality (WFD)
The full read · show the working · for Atlantic Salmon · confidence 75%
How the river scores — hydrology factors
Water heightHigh But Manageable+0.8
Recent riseSmall Recent Rise+3.5
Falling after liftNot Applicable0.0
Water temperatureCool To Moderate+3.5
Time in seasonLate Season+0.8
ClarityClearing+2.4
Hydrology base11.0
Will they take?Willingcaps the band
Fish should be willing to take — clearing, stained water.
Can you trust it?
Water temperatureair-to-water estimateestimated
Level / flowproxy via Launeproxy
What would change the calculation
No prolonged stable spell before the current rise.
Directions
Seasons & zones
- Salmon 15 March → 30 September
- Trout 15 February → 30 September
Related guides
Casting instructors near here
Booking & contacts
River Sheen
Water temperature for Atlantic Salmon
Ideal16°C est.ideal 10–16°C
0°14°28°
How to fish it · for Atlantic Salmon
When
Morning and evening are prime, but midday can still produce if there's cloud cover or a breeze to ruffle the surface. Overcast days fish well all day in summer.
Where
Focus on the slower water at pool edges, inside bends, and behind large boulders. Fish won't hold in the main current at this height. Streamy water that's normally too shallow can hold fish in high water.
Method
Lively swing near the surface. Floating line, the fly fishing in the top 12 inches. The fly should look alive — a small mend to accelerate at the right moment can trigger a snapping take.. Floating line. Small-medium: size 8-12. Match temperature and water colour — go smaller if clear, bigger if any colour.
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
Conditions are looking excellent for salmon. Late season — fish are beginning to colour up as spawning approaches. They become more territorial and can take aggressively. Autumnal colours (orange, copper, gold) work well. No historical catch data available for this river — prediction based on current conditions only.
Likely species
Caddisflies
- Net-spinning caddisMost likelyLower confidenceNearest relative#12–14–16 · PupaWidespread riffle net-spinner; evening emergence.
- Large sedgesAlso possibleNearest relative#8–10 · AdultBig waked sedge in the last light and after dark.
- CapererAlso possibleLower confidence#10–12 · AdultBig autumn sedge; fish dry at last light.
- Green SedgeAlso possibleLower confidenceNearest relative#10–12–14–16 · NymphFree-living green caddis larva; fast stony riffles.
Hatch timeline · todayPeak at 11 Uhr
Hatch predictions
Today's headline hatch shown — see all 12 active hatches hour by hour as a supporter.
Start free trial14-day free trial. Cancel anytime.
Sub-surface · on the nymphunder the surface
Hatch predictions
Top nymph shown — see all 3 guilds as a supporter.
Start free trial14-day free trial. Cancel anytime.
Beyond the hatch · worth watchingambient prey(1)
Hatch predictions
Top prey shown — see all 3 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 · September highlighted
J
F
M
A
M
J
J
A
S
O
N
D
Salmon runRun
1
2
2
2
2
2
1
Trout seasonSeason
1
2
2
2
2
2
2
1
March BrownHatch
2
3
2
CapererHatch
2
3
3
2
Heather FlyHatch
2
2
Autumn DunHatch
2
3
2
Numbers are intensity 0 (none) to 3 (peak) — a guide, not a guarantee.
Ranked for today
Fly box · Atlantic Salmon
Permits & access
Permit required — see local rules.
- State rod licence required (IFI)
- Sheen Falls Lodge holds exclusive fishing rights — book via the lodge
- For 2026 the River Sheen is open with a harvest surplus under the Wild Salmon & Sea Trout Tagging Scheme (S.I
- 129/2026) — harvest to 31 August under tag and the bag limit, catch-and-release from 1 September.
What's coming
Plan ahead
5-day outlook
Other water nearby · 5
Water quality (WFD)
- Ecology: Good
- Chemical: Unknown
The full read · show the working · for Atlantic Salmon · confidence 75%
How the river scores — hydrology factors
Water heightHigh But Manageable+0.8
Recent riseSmall Recent Rise+3.5
Falling after liftNot Applicable0.0
Water temperatureCool To Moderate+3.5
Time in seasonLate Season+0.8
ClarityClearing+2.4
Hydrology base11.0
Will they take?Willingcaps the band
Fish should be willing to take — clearing, stained water.
Can you trust it?
Water temperatureair-to-water estimateestimated
Level / flowproxy via Launeproxy
What would change the calculation
No prolonged stable spell before the current rise.
Directions
Seasons & zones
- Salmon 15 March → 30 September
- Trout 15 February → 30 September
Related guides
Casting instructors near here
Booking & contacts