Water estimated at about 20°C from air temperature — there is no water-temp gauge here, so treat the figure as a guide. Above 18°C, the risk of killing a released fish climbs. Fish dawn or dusk only — the water can be two or three degrees cooler at first light. Barbless hooks. Land it fast — under thirty seconds. Wet hands. No air shots. If a fish swims off slowly or rolls, stop fishing for the day.
Low and clear — careful approach country. Cover and shadow are doing the work today.
Running clear, sitting at a steady height, the water's warmed to close to 20°C.
Live now
Trends shown where the gauge supports them
No gauge on this water — readings are regional estimates from weather, not a live gauge.
How to fish · for brown trout
When · where · method · kit
Hatches & runs
Twelve months at a glance
Numbers are intensity 0 (none) to 3 (peak) — a guide, not a guarantee.
Today's fly · curated pack
5 patterns from this venue's curated pack
Detail · next 12h
The two readings most likely to move the verdict
The full read
How the score is built · what we trust
The water
No angler photos yet — add the first
Sumène · about
Background · character · contributors
The Sumène tumbles through the Cévennes where the light on granite seems sharper than anywhere in France. Freestone water with wild trout responding to strong seasonal hatches — Baetis spring, caddis and stoneflies summer. Cold, clear flow year-round. Technical mountain fishing in places, more accessible lower down. Check Lozère regulations for restrictions.
EA waterbody FRFR109
Sumène · directions
Sumène · zones
Seasons · zones · per-species rules
Sumène · permits
Sumène · learn
Learn-zone playbooks for this water
The Sumène tumbles through the Cévennes where the light on granite seems sharper than anywhere in France.
Water estimated at about 20°C from air temperature — there is no water-temp gauge here, so treat the figure as a guide. Above 18°C, the risk of killing a released fish climbs. Fish dawn or dusk only — the water can be two or three degrees cooler at first light. Barbless hooks. Land it fast — under thirty seconds. Wet hands. No air shots. If a fish swims off slowly or rolls, stop fishing for the day.
Low and clear — careful approach country. Cover and shadow are doing the work today.
Running clear, sitting at a steady height, the water's warmed to close to 20°C.
No gauge on this water — readings are regional estimates from weather, not a live gauge.
Hatch predictions
Today's headline hatch shown — see all 3 active hatches hour by hour with Pro.
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Backed by regional invertebrate surveys; no sampling on this exact reach yet.
Numbers are intensity 0 (none) to 3 (peak) — a guide, not a guarantee.
The Sumène tumbles through the Cévennes where the light on granite seems sharper than anywhere in France. Freestone water with wild trout responding to strong seasonal hatches — Baetis spring, caddis and stoneflies summer. Cold, clear flow year-round. Technical mountain fishing in places, more accessible lower down. Check Lozère regulations for restrictions.
EA waterbody FRFR109