Spate · Granite · Valais, CH

Rhône Headwaters

Wallis Furkapass Rhône 1
Tomorrow · Closed season
Stonefly Nymph
Forecast · Tomorrow
Closed season
Out of season. Try elsewhere.
90% projected
Today's fly
Stonefly Nymph
Stonefly Nymph
Conditions on the water · Tomorrow
Live gauge
Level
Steady
1755.82 m
Water temp8.4°C
ClarityClear
Weather12°C
WindN 5 km/h
Pressure1030 hPa
Rain · recent0.0 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
Cool — slow
8°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.
Likely species
Mayflies
Stoneflies
Caddisflies
Damselflies & dragonflies
Hatch timeline · tomorrowPeak at 11 Uhr

12 Uhr(now) — Autumn Needle Fly

Stage: Creeping nymphsApproach: Heavy nymphActivity: 95%
Also:Autumn Olive57%Black Midge48%
Peak emergence windowWeather boost8 food groups active

Peak activity at 11 Uhr — Autumn Needle Fly (Autumn Needle Fly, Peak emergence window)

Sub-surface · on the nymphunder the surface

Hatch predictions

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Beyond the hatch · worth watchingambient prey(1)

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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 · October highlighted
J
F
M
A
M
J
J
A
S
O
N
D
Trout seasonSeason
1
2
2
1
Autumn DunHatch
2
3
2
March BrownHatch
2
3
2
Late March BrownHatch
2
3
2
Large Brook DunHatch
2
3
2

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

Ranked for today
Fly box · Brown Trout
Permits & access
Permit required — see local rules.
  • Walliser Alpen-Quellgebiet
  • Patent (Wallis) sowie Fischereierlaubnis erforderlich
  • Abgelegener Zugang.
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
Brown trout
Lake Thun
42 km
Brown trout · Lake trout · Char
Gallery · 2
  1. Wallis Furkapass Rhône 1
  2. Terrain map of the venue
    Terrain map
The full read · show the working · for Brown Trout · confidence 90%
How the 0 is built — score × weight = contribution
Temperature78 × 28%21.8
Flow80 × 22%17.6
Clarity95 × 18%17.1
Feeding Time60 × 13%7.8
Pressure80 × 7%5.6
Insect activity66 × 12%7.9
Conditions total= 78
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
Apple MapsGoogle Maps
Seasons & zones
  • Trout June → 30 September
Related guides
Alpine Streamsmountain entomologyEuro Nymphingsubsurface methods
Booking & contacts