Limestone · East / Meath, IE

River Deel (Meath)

River Deel (Meath) terrain map

A clear limestone river draining Loughs Lene and Bane down through Raharney to the Boyne.

Tomorrow · About as good as it gets
Black Gnat
Forecast · Tomorrow
About as good as it gets
On the feed top to bottom — start on the rises with a dry, drop a nymph if they stay down.
75% projected
Today's fly
Black Gnat
Black Gnat
Conditions on the water · Tomorrow
Live gauge
Level
Steady
0.32 m
Water temp13.4°C
ClarityClear
Weather11°C
WindN 17 km/h
Pressure1019 hPa
Rain · recent5.5 mm
Rain · ahead0.0 mm

The nearest gauge doesn't record temperatures, so we've estimated it — defer to the river keeper's advice.

Water temperature for Brown Trout
Ideal
13°C est.ideal 10–16°C
0°14°28°
How to fish it · for Brown Trout
When
Nymphing can work through most of the day.
Where
Cover mixed depths.
Method
Start with tight-line nymphs and adjust if fish rise or drift higher.
Kit
9 ft #4 rod, floating line, 12 ft tapered leader to 4–5 lb fluoro tippet.
Why this works
Excellent — water temperature is right today, though insect activity could be better.
Likely species
Hatch timeline · tomorrowPeak at 12pm

12pm(now) — Heather Fly

Stage: Terrestrials on topApproach: Dry flyActivity: 95%
Also:Reed Smut85%Autumn Dun53%Cinnamon Sedge50%
Peak emergence windowWeather boost11 food groups active

Peak activity at 12pm — Heather Fly (Heather Fly, Peak emergence window)

Sub-surface · on the nymphunder the surface

Hatch predictions

Top nymph shown — see all 3 guilds as a supporter.

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Beyond the hatch · worth watchingambient prey(1)

Hatch predictions

Top prey shown — see all 4 as a supporter.

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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
2
1
Daddy Long LegsHatch
2
3
2
CapererHatch
2
3
3
2
Hawthorn FlyHatch
2
2
GrannomHatch
2
2

Numbers are intensity 0 (none) to 3 (peak) — a guide, not a guarantee.

Ranked for today
Brown Trout fly box
What's coming
Plan ahead
5-day outlook
Other water nearby · 5
About this water

A clear limestone river draining Loughs Lene and Bane down through Raharney to the Boyne. It throws the sort of hatches that make a limestone river worth the name — upwings, sedges and diptera in good number — and the trout have come back well since the drainage works, with wild fish to over two pounds. It fishes best early, before the weed sets in and turns every drift into a negotiation. Deel and Boyne Angling Association water; dry-fly only from Raharney to Inan Bridge.

Hatches & food

A clear, weedy limestone river draining Loughs Lene and Bane with genuinely prolific upwing, sedge and diptera hatches — and enough lake-fed richness to support a patchy Mayfly (Ephemera danica) emergence in late May.

  • Limestone
The full read · show the working · for Brown Trout · confidence 90%
How the 86 is built — score × weight = contribution
Temperature100 × 28%28.0
Flow80 × 22%17.6
Clarity95 × 18%17.1
Feeding Time80 × 13%10.4
Pressure80 × 7%5.6
Insect activity62 × 12%7.4
Conditions total= 86
Can you trust it?
Water temperaturelive gauge readinggauge
Level / flowon-river gaugeobserved
Prey activitysurvey-backed invertebrate datasurvey
Directions
Seasons & zones
  • Trout 1 March → 30 September
Related guides
Casting instructors near here
Booking & contacts
Permits & access