Grayling
Salmonidae

Grayling

Thymallus thymallus

Called the 'Lady of the Stream' — the grayling extends the fly fishing season deep into winter with year-round sport.


Habitat

Clear, fast-flowing rivers with gravel or chalk substrates. Thrives in colder water than trout and remains active through winter.

Typical size

25–50 cm, typically 300–900 g; exceptional fish in productive chalk streams can exceed 1.5 kg.

Scientific name

Thymallus thymallus

Distribution

Central and Northern Europe: chalk stream valleys of England, Alpine rivers of Austria and Germany, Scandinavia and Eastern Europe.

The grayling is the fly fisher's winter friend. While trout retreat to deeper, slower water and cease feeding actively in the cold months, grayling feed all year — often most willingly in November, December, and January when nothing else is in season.

Distinctly marked with a spectacular sail-like dorsal fin of iridescent purple and pink, the grayling is arguably the most beautiful freshwater fish in Europe.


Fly fishing tactics

Czech and French Nymphing

The most effective technique for winter grayling. Czech nymphing with two heavy beadhead nymphs (sizes 12–16) fished tight-line is devastating. French leader techniques allow longer-range nymphing in wider rivers.

Dry Fly in Autumn

Grayling will rise freely to small dry flies in autumn — sometimes more willingly than in summer. Sizes 16–20 in grey, olive, or orange work well.


Recommended flies
Czech Nymph
Red Tag
Killer Bug
F-Fly
Parachute Adams
Best months
September
October
November
December
January
February
March