Mayflies
Stoneflies
Caddisflies
Gammarids
- Ecology: Moderate
- Chemical: Unknown
Water quality details
- Dissolved oxygen: High
- Ammonia (Phys-Chem): High
- pH: High
- Phosphate: High
- Temperature: High
EA (England) · UKGB104027068470
Water temperature for Brown Trout
Ideal15°C est.ideal 10–16°C
0°14°28°
How to fish it · for Brown Trout
When
Through the chalk-fed open season, March into late September. Olives April through May; spinners on warm summer evenings; sedges through summer; small dark flies into autumn.
Where
The whole stream is intimate chalk-fed water through the Vale of Pickering. Sipping fish in the slow glides; cushion water under the alders.
Method
Upstream dry to spotted rising fish; long leader, fine tippet — this is chalk-fed water and reads every line wrinkle. Move slowly, cast accurately, get it right first time.
Kit
8'6 to 9 ft #4 — chalk-fed default. Floating line, 12 to 14 ft leader to 4 lb fluoro. Polarising glasses non-negotiable.
Likely species
Caddisflies
- Net-spinning caddisMost likelyLower confidenceNearest relative#12–14–16 · PupaWidespread riffle net-spinner; evening emergence.
- 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.
- Large sedgesAlso possibleNearest relative#8–10 · AdultBig waked sedge in the last light and after dark.
Hatch timeline · todayPeak at 14:00
12:00(now) — Daddy Long Legs
Stage: On emergersApproach: Emerger or dryActivity: 42%
Also:Brown Sedge25%Pale Watery25%
Weather boost9 food groups active
Peak activity at 14:00 — Brown Sedge (Brown Sedge, 12 food groups active)
Sub-surface · on the nymphunder the surface
Hatch predictions
Top nymph shown — see all 4 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 4 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
Trout seasonSeason
1
2
2
2
2
1
Mayfly (Green Drake)Hatch
2
2
Freshwater ShrimpHatch
2
3
3
3
3
3
3
3
3
3
3
2
CapererHatch
2
3
3
2
Brown SedgeHatch
2
3
3
3
2
Numbers are intensity 0 (none) to 3 (peak) — a guide, not a guarantee.
Ranked for today
Fly box · Brown Trout
North Country spider water
Local classics: Waterhen Bloa·Greenwell's Spider
What's coming
Plan ahead
5-day outlook
Other water nearby · 5
Gallery · 1
Terrain map
Water quality (WFD)
The full read · show the working · for Brown Trout · confidence 75%
How the 0 is built — score × weight = contribution
Temperature100 × 28%28.0
Flow80 × 22%17.6
Clarity95 × 18%17.1
Feeding Time45 × 13%5.9
Pressure80 × 7%5.6
Insect activity67 × 12%8.0
Conditions total= 82
Can you trust it?
Water temperatureair-to-water estimateestimated
Level / flowon-river gaugeobserved
Prey activitysurvey-backed invertebrate datasurvey
What would change the calculation
The dawn and dusk windows score higher than the midday lull.
Directions
Seasons & zones
- Trout 1 April → 30 September
Related guides
Casting instructors near here
Booking & contacts
Permits & access
Boards & regulators
Costa Beck
Water temperature for Brown Trout
Ideal15°C est.ideal 10–16°C
0°14°28°
How to fish it · for Brown Trout
When
Through the chalk-fed open season, March into late September. Olives April through May; spinners on warm summer evenings; sedges through summer; small dark flies into autumn.
Where
The whole stream is intimate chalk-fed water through the Vale of Pickering. Sipping fish in the slow glides; cushion water under the alders.
Method
Upstream dry to spotted rising fish; long leader, fine tippet — this is chalk-fed water and reads every line wrinkle. Move slowly, cast accurately, get it right first time.
Kit
8'6 to 9 ft #4 — chalk-fed default. Floating line, 12 to 14 ft leader to 4 lb fluoro. Polarising glasses non-negotiable.
Likely species
Caddisflies
- Net-spinning caddisMost likelyLower confidenceNearest relative#12–14–16 · PupaWidespread riffle net-spinner; evening emergence.
- 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.
- Large sedgesAlso possibleNearest relative#8–10 · AdultBig waked sedge in the last light and after dark.
Hatch timeline · todayPeak at 14:00
12:00(now) — Daddy Long Legs
Stage: On emergersApproach: Emerger or dryActivity: 42%
Also:Brown Sedge25%Pale Watery25%
Weather boost9 food groups active
Peak activity at 14:00 — Brown Sedge (Brown Sedge, 12 food groups active)
Sub-surface · on the nymphunder the surface
Hatch predictions
Top nymph shown — see all 4 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 4 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
Trout seasonSeason
1
2
2
2
2
1
Mayfly (Green Drake)Hatch
2
2
Freshwater ShrimpHatch
2
3
3
3
3
3
3
3
3
3
3
2
CapererHatch
2
3
3
2
Brown SedgeHatch
2
3
3
3
2
Numbers are intensity 0 (none) to 3 (peak) — a guide, not a guarantee.
Ranked for today
Fly box · Brown Trout
North Country spider water
Local classics: Waterhen Bloa·Greenwell's Spider
What's coming
Plan ahead
5-day outlook
Other water nearby · 5
Gallery · 1
Terrain map
Water quality (WFD)
- Ecology: Moderate
- Chemical: Unknown
Water quality details
- Dissolved oxygen: High
- Ammonia (Phys-Chem): High
- pH: High
- Phosphate: High
- Temperature: High
EA (England) · UKGB104027068470
The full read · show the working · for Brown Trout · confidence 75%
How the 0 is built — score × weight = contribution
Temperature100 × 28%28.0
Flow80 × 22%17.6
Clarity95 × 18%17.1
Feeding Time45 × 13%5.9
Pressure80 × 7%5.6
Insect activity67 × 12%8.0
Conditions total= 82
Can you trust it?
Water temperatureair-to-water estimateestimated
Level / flowon-river gaugeobserved
Prey activitysurvey-backed invertebrate datasurvey
What would change the calculation
The dawn and dusk windows score higher than the midday lull.
Directions
Seasons & zones
- Trout 1 April → 30 September
Related guides
Casting instructors near here
Booking & contacts
Permits & access
Boards & regulators