Lake Geneva · France

Thonon-les-Bains fishing forecast

Name: Thonon-les-Bains
Address: Lake Geneva, FR

68 Good of 100

Thonon-les-Bains is a freshwater fishing spot in Lake Geneva, France. Anglers here target Arctic Char, European Perch, Brown Trout. The most productive months are typically March, April, May, June, September, October.

Quick answer

Best monthsMarch, April, May, June

Top speciesArctic Char, European Perch, Brown Trout

Score now68/100

Local rulesFrance

Today’s verdict

Ranks #232 of 437 spots FishRadar scored worldwide today

In line with this spot’s 7-day average

Score confidence ±7 points, from 7 live signals

Helping the score most

Waves+15.0Water temperature+14.1Wind+12.0

Pressure trend

Pressure data unavailable

Best window today

05:00 · Light wind (0 km/h) and calm seas

Next solunar peak

dawn 05:08

Current conditions

Sea surface temp	23.1 °C
Wind	7 km/h from SSW, gusting 22 km/h
Pressure	1017 hPa
Cloud cover	0%
Chlorophyll	15.28 mg/m³
Salinity	0.0 PSU
UV index	0
Wind sea	0.0 m
Ground swell	0.0 m at 0 s

The water here is 5.6 °C warmer than the September average of 17.6 °C. Warmer-than-normal water pushes cool-water species deeper and brings warm-water species in earlier than the calendar suggests. The water is mixed to about 39.4 m, with the thermocline below that.

Updated 1 h ago.

What the score means at Thonon-les-Bains

Thonon-les-Bains currently scores 68 out of 100 (Good). Water temperature is 23.1 °C. 7 forecast signals are active in this score.

Waves +15.0: swell energy stirring the water column
Water temperature +14.1: how close the water is to this species mix’s comfort band
Wind +12.0: surface chop, oxygen and bait drift
Barometric pressure +4.4: falling pressure often triggers feeding
Pre-storm bite +2.4: the classic feed before heavy weather
Moon phase +2.1: lunar feeding rhythm

What’s biting now

The model expects today: brown-trout, northern-pike, european-perch, wels-catfish, european-eel, nase, common-carp, european-carp-entry

[object Object] — Protected here — release immediately

Bite windows

Moon

Waning Crescent · 14% lit

Solunar day rating

50 / 100

Best months for Thonon-les-Bains:

Score history at this spot

30 days tracked at this exact location

Best recent day: 2026-08-24, 75/100

18 day(s) at 70+ in the tracked period

About this spot

Water type

Lake · Freshwater

Lakes have no tide, so target structure, drop-offs, and seasonal thermoclines where fish concentrate by depth and temperature.

Access & shore

Fishable from shore · harbor

On-site: parking · launch ramp

What you can catch

Arctic Char

Salvelinus alpinus
European Perch

Perca fluviatilis
Brown Trout

Salmo trutta

Best months by species at Thonon-les-Bains

Arctic CharSalvelinus alpinus
European PerchPerca fluviatilis
Brown TroutSalmo trutta

Typical months; local seasons and closures apply.

Local regulations

Ministère de la Transition écologique, de la Biodiversité, de la Forêt, de la Mer et de la Pêche

France

Licensing:

saltwater-recreational — residents No paid licence for recreational sea fishing. From 2026, anglers aged 16+ must register every 12 months and declare daily catches of sensitive species (e.g. European seabass) via the EU RecFishing app. Minimum sizes, gear and zone/season restrictions apply., non-residents Same RecFishing registration and reporting obligations apply to non-residents fishing recreationally in French waters.
freshwater-recreational — residents Inland/freshwater fishing requires a "carte de pêche" from a local AAPPMA angling association (national network at cartedepeche.fr)., non-residents Non-residents need the same "carte de pêche" (annual, holiday or daily options available).

Some rules may have changed since our last verification — always confirm with the authority before you fish.

FishRadar regulations are summaries for informational purposes only. French recreational fishing rules are set nationally and by EU regulations (including seabass measures and Mediterranean minimum sizes), and vary by area and season. Always verify with the Ministère de la Mer at mer.gouv.fr before fishing.