Spate · Granite · Valais

Rhône Headwaters

Rhône Headwaters terrain map
Good · Brown Trout
Elk Hair Caddis · 12-16
Goodlive now
A proper day on the water
River dropping into shape after a lift. Fishing well — get there before it drops out.
75% confidence
What moved it
  • Level1756.38 mDropping after lift
  • Water temp16.9°C
  • ClarityColouredClearing
Today's fly
Elk Hair Caddis
Elk Hair Caddis12-16
Upstream dry
Conditions on the water
Live gauge
Level
Steady
1756.38 m
Dropping after lift
Water temp16.9°C
ClarityColoured
Weather16°C
WindN 4 km/h
Pressure1023 hPa
Rain · recent2.8 mm
Rain · ahead3.8 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
Warm — slow
17°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
Good — river flow is working for you, but water clarity is the limiting factor today.
Hatch timeline · todayPeak at 6pm

Hatch predictions

Today's headline hatch shown — see all 9 active hatches hour by hour with Pro.

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Sub-surface · on the nymphunder the surface

Hatch predictions

Top nymph shown — see all 3 guilds with Pro.

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Beyond the hatch · worth watchingambient prey

Hatch predictions

Top prey shown — see all 2 with Pro.

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Evidence
Survey-backed · regionalModerate 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
Trout seasonSeason
1
2
2
1
March BrownHatch
2
3
2
GrannomHatch
2
2
Large StoneflyHatch
2
3
2
Yellow SallyHatch
2
3
2

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

Ranked for today
Brown Trout fly box
SS
Small Streamer
6-10 · Pattern
Swing
Permits & access
Permit required — see local rules.
  • Valais Alpine headwaters
  • Patent (Valais) + fishing permit required
  • Remote access.
What's coming
Plan ahead
5-day outlook
Other water nearby · 3
Lake Brienz
37 km
Brown trout · Lake trout · Char
Valais Alpine Streams
40 km
33
Brown trout
Lake Thun
42 km
Brown trout · Lake trout · Char
The full read · show the working · for Brown Trout · confidence 75%
How the 69 is built — score × weight = contribution
Temperature79 × 28%22.1
Flow80 × 22%17.6
Clarity40 × 18%7.2
Feeding Time80 × 13%10.4
Pressure80 × 7%5.6
Insect activity48 × 12%5.8
Conditions total= 69
Can you trust it?
Water temperatureair-to-water estimateestimated
Level / flowon-river gaugeobserved
Prey activitysurvey-backed invertebrate datasurvey
Directions
Apple MapsGoogle Maps
Seasons & zones
  • Trout June → 30 September
Related guides
Alpine Streamsmountain entomologyEuro Nymphingsubsurface methods
Booking & contacts