Spate · Volcanic · Co. Londonderry, GB-NIR

River Agivey

The Agivey River joining the wider River Bann, viewed from Agivey Bann Bridge.

The Agivey is a small, prolific salmon and trout tributary of the Lower Bann, managed by The Honourable Irish Society.

Today · Slow going — better windows ahead
Black Gnat
Forecast · Today
Slow going — better windows ahead
Little in your favour today. Fish the certain lies, or leave it for a better one.
40% projected
Today's fly
Black Gnat
Black Gnat
Conditions on the water · Today
Live gauge
Level
Rising
1.14 m
Lifting fast
Water temp14.9°C
ClarityUnfishable
Weather14°C
WindN 37 km/h
Pressure1000 hPa
Rain · recent2.8 mm
Rain · ahead2.3 mm

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

Water temperature for Atlantic Salmon
Ideal
15°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
Fair conditions based on river hydrology and migration patterns.
Likely species
Mayflies
Stoneflies
Caddisflies
Gammarids
Hatch timeline · todayPeak at 12pm

12pm(now) — Heather Fly

Stage: Terrestrials on topApproach: Dry flyActivity: 72%
Also:Reed Smut53%Autumn Dun36%Cinnamon Sedge30%
Peak emergence windowWeather boost12 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 2 guilds as a supporter.

Start free trial

14-day free trial. Cancel anytime.

Beyond the hatch · worth watchingambient prey(1)

Hatch predictions

Top prey shown — see all 2 as a supporter.

Start free trial

14-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
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
Atlantic Salmon fly box

Connemara/Mayo low water: a lightly-dressed shrimp on a floating line with sink tip, sized down from 8s in cold spring water to 12s and 14s as summer water warms and clears. Where the current runs faster, a slim tube or hairwing swung through tracks better than a shrimp.

What's coming
Plan ahead
5-day outlook
Other water nearby · 5
River Roe
21 km
50
Brown trout · Salmon · Sea trout
Clady River
3.0 km
Brown trout · Salmon
Lower Bann
8.0 km
Brown trout · Salmon · Sea trout
River Moyola
21 km
Brown trout · Salmon · Dollaghan
River Maine
27 km
Brown trout · Dollaghan
Gallery · 2
  1. The Agivey River joining the wider River Bann, viewed from Agivey Bann Bridge.
    The River Bann and the Agivey River meeting at the confluence near Agivey Bann Bridge, County Londonderry.
  2. Terrain map of the venue
    Terrain map
About this water

The Agivey is a small, prolific salmon and trout tributary of the Lower Bann, managed by The Honourable Irish Society. Fast-draining basalt catchment — rises and drops quickly after rain. Salmon from May with grilse from June. Fly only on much of the water. Brown trout are plentiful. An intimate river that fishes well for a single angler. Day permits available. Volcanic bedrock underlies this river. Atlantic salmon are managed under DAERA and Loughs Agency conservation byelaws, with mandatory catch-and-release on many waters; check current rules before fishing.

Hatches & food

No venue-specific hatch data yet; as an upland spate/headwater stream, expect brief, rain-driven stonefly and terrestrial activity rather than a dependable hatch — treat this as general guidance only.

  • Volcanic
The full read · show the working · for Atlantic Salmon · confidence 75%
How the river scores — hydrology factors
Water heightMedium Ideal0.0
Recent riseNone0.0
Falling after liftNot Applicable0.0
Water temperatureCool To Moderate0.0
Time in seasonOpening Period0.0
ClarityClearing0.0
Hydrology base0.0
Legal gate: Unknown Check Local Rules
Can you trust it?
Water temperatureair-to-water estimateestimated
Level / flowon-river gaugeobserved
Directions
Apple MapsGoogle Maps
Seasons & zones
  • Salmon 1 April → 31 October
Related guides
Atlantic Salmonsalmon tacticsIrish Salmon Rivers Guidefive great salmon fisheriesConnemaraIrish fishing
Casting instructors near here
Booking & contacts