Lowland · Sand And Clay · North Jutland, DK

Simested Å

Simested Å
Today · Slow going — pick your moments
Czech Nymph
Forecast · Today
Slow going — pick your moments
Slow going — pick your moments and do not force it.
45% projected
Today's fly
Czech Nymph
Czech Nymph
Conditions on the water · Today
Proxy gauge
Level
Rising
Proxy
via Karup Å
Water temp8.6°C
ClarityVery coloured
Weather15°C
WindN 24 km/h
Pressure1021 hPa
Rain · recent0.0 mm
Rain · ahead0.0 mm

No gauge on this water — conditions are inferred from Karup Å. The trend transfers, the absolute level does not.

Water temperature for Brown Trout
Cool — slow
9°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
Mayflies
Caddisflies
Gammarids
Hatch timeline · todayPeak at 10 Uhr

12 Uhr(now) — Black Midge

Stage: On emergersApproach: Emerger or dryActivity: 29%
Also:Iron Blue23%
Peak emergence window7 food groups active

Peak activity at 10 Uhr — Black Midge (Black Midge, 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 · October highlighted
J
F
M
A
M
J
J
A
S
O
N
D
Sea trout runRun
1
2
2
2
2
2
2
2
1
Trout seasonSeason
1
2
2
2
2
2
2
2
1
Terrestrial BeetlesHatch
2
3
3
2
Blue Winged OliveHatch
1
2
2
2
2
1
Black MidgeHatch
1
2
2
2
2
2
2
2
2
2
2
1
Summer River MidgeHatch
1
2
2
2
1

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

Ranked for today
Fly box · Brown Trout
SW
Small wet fly (Ke-He style)
10-14 · Small wet fly
Proven pattern for this period
Permits & access
Permit required — see local rules.
  • Fisketegn (national licence) + local permit from municipality or landowner
  • Some public waters available.
What's coming
Plan ahead
5-day outlook
Other water nearby · 3
Villestrup Å
41 km
Brown trout · Sea trout
Karup Å
43 km
Brown trout · Sea trout
Lilleåen
54 km
Brown trout · Sea trout
Gallery · 2
  1. Simested Å
  2. Terrain map of the venue
    Terrain map
The full read · show the working · for Brown Trout · confidence 90%
How the 85 is built — score × weight = contribution
Temperature100 × 28%28.0
Flow80 × 22%17.6
Clarity95 × 18%17.1
Feeding Time70 × 13%9.1
Pressure80 × 7%5.6
Insect activity63 × 12%7.6
Conditions total= 85
Can you trust it?
Water temperatureair-to-water estimateestimated
Level / flowproxy via Karup Åproxy
Prey activitysurvey-backed invertebrate datasurvey
Directions
Apple MapsGoogle Maps
Seasons & zones
  • Sea trout 1 March → 30 November
  • Trout 1 March → 30 November

Sea trout: Variable seasonal (2026)

Related guides
Euro Nymphingsubsurface methods
Booking & contacts