- Ecology: Moderate
- Chemical: Unknown
NRW (Wales) · UKGB110063041570
Rules at a glance
- Free fishing
- Fly only
Water temperature for Atlantic Salmon
Warm — slow16°C est.ideal 10–14°C
0°14°28°
How to fish it · for Atlantic Salmon
When
Mostly summer into autumn. The Rheidol is not a spring salmon river. Fish on the drop after rain or a hydropower release — 12 to 24 hours into a falling river.
Where
Lower beats above the tidal limit at Aberystwyth. Named pools through the Aberystwyth association water.
Method
Small doubles 10 to 12 across-and-down on a floating line; small tubes on a sink-tip in spring or coloured water. Fish the named lies in each pool, working systematically before moving on. Mandatory catch-and-release under NRW byelaw — every salmon goes back.
Kit
10 ft #7/8 single-hander or 11 ft switch — small spate scale; double-handers are wasted on these rivers. Floating line plus light sink-tip. 10 to 12 lb fluoro tippet.
Why this works
Fair — water clarity is working for you, but time of day is the limiting factor today.
Hatch timeline · todayPeak at 6am
Hatch predictions
Today's headline hatch shown — see all 7 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.
Beyond the hatch · worth watchingambient prey
Hatch predictions
Top prey shown — see all 2 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
Sea trout runRun
1
2
2
2
2
2
2
1
Trout seasonSeason
1
2
2
2
2
2
1
Daddy Long LegsHatch
2
3
2
March BrownHatch
2
3
2
GrannomHatch
2
2
Large StoneflyHatch
2
3
2
Numbers are intensity 0 (none) to 3 (peak) — a guide, not a guarantee.
Ranked for today
Atlantic Salmon fly box
Beats · 1
Aberystwyth AA — day ticket via Fishing PassportAccess varies
Sixteen miles of both banks of the Rheidol from Devil's Bridge down to the sea — held by Aberystwyth Angling Association.
Visit official site ↗What's coming
Plan ahead
5-day outlook
Other water nearby · 5
Gallery · 2
Aberystwyth harbour weir and bridge over Afon Rheidol river Terrain map
Water quality (WFD)
Why this score · for Atlantic Salmon
- Temperature4930% weight
- Flow6025% weight
- Clarity9520% weight
- Feeding Time1015% weight
- Pressure8510% weight
Directions
Seasons & zones
- Salmon 1 April → 17 October
- Sea trout 3 March → 17 October
- Trout 3 March → 30 September
Sea trout: Variable seasonal (2026) — Sewin run is one of the most consistent on the Welsh coast — Aberystwyth association reports both numbers and size — but the all-Wales At Risk classification applies and stocks have declined from historical peaks. Hydropower releases modify the spate response, so the gauge needs reading alongside the release schedule, not just the rainfall.
Related guides
Casting instructors near here
Booking & contacts
Rheidol
Water temperature for Atlantic Salmon
Warm — slow16°C est.ideal 10–14°C
0°14°28°
How to fish it · for Atlantic Salmon
When
Mostly summer into autumn. The Rheidol is not a spring salmon river. Fish on the drop after rain or a hydropower release — 12 to 24 hours into a falling river.
Where
Lower beats above the tidal limit at Aberystwyth. Named pools through the Aberystwyth association water.
Method
Small doubles 10 to 12 across-and-down on a floating line; small tubes on a sink-tip in spring or coloured water. Fish the named lies in each pool, working systematically before moving on. Mandatory catch-and-release under NRW byelaw — every salmon goes back.
Kit
10 ft #7/8 single-hander or 11 ft switch — small spate scale; double-handers are wasted on these rivers. Floating line plus light sink-tip. 10 to 12 lb fluoro tippet.
Why this works
Fair — water clarity is working for you, but time of day is the limiting factor today.
Hatch timeline · todayPeak at 6am
Hatch predictions
Today's headline hatch shown — see all 7 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.
Beyond the hatch · worth watchingambient prey
Hatch predictions
Top prey shown — see all 2 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
Sea trout runRun
1
2
2
2
2
2
2
1
Trout seasonSeason
1
2
2
2
2
2
1
Daddy Long LegsHatch
2
3
2
March BrownHatch
2
3
2
GrannomHatch
2
2
Large StoneflyHatch
2
3
2
Numbers are intensity 0 (none) to 3 (peak) — a guide, not a guarantee.
Ranked for today
Atlantic Salmon fly box
Beats · 1
Aberystwyth AA — day ticket via Fishing PassportAccess varies
Sixteen miles of both banks of the Rheidol from Devil's Bridge down to the sea — held by Aberystwyth Angling Association.
Visit official site ↗What's coming
Plan ahead
5-day outlook
Other water nearby · 5
Gallery · 2
Aberystwyth harbour weir and bridge over Afon Rheidol river Terrain map
Water quality (WFD)
- Ecology: Moderate
- Chemical: Unknown
NRW (Wales) · UKGB110063041570
Why this score · for Atlantic Salmon
- Temperature4930% weight
- Flow6025% weight
- Clarity9520% weight
- Feeding Time1015% weight
- Pressure8510% weight
Directions
Seasons & zones
- Salmon 1 April → 17 October
- Sea trout 3 March → 17 October
- Trout 3 March → 30 September
Sea trout: Variable seasonal (2026) — Sewin run is one of the most consistent on the Welsh coast — Aberystwyth association reports both numbers and size — but the all-Wales At Risk classification applies and stocks have declined from historical peaks. Hydropower releases modify the spate response, so the gauge needs reading alongside the release schedule, not just the rainfall.
Related guides
Casting instructors near here
Booking & contacts