Grayling fishing in Sweden
Grayling (Thymallus thymallus) is one of fly fishing's most cherished species, instantly recognisable by its tall, sail-like dorsal fin. Grayling live in clear, flowing water and cold lakes across northern and central Sweden. They are sensitive to pollution and a reliable indicator of a clean environment.

Harren är en strömlevande laxfisk med karaktäristisk hög ryggfena. Fantastisk på torrfluga.
Source: SLU Artdatabanken
Fishing tips & gear
- Small dry flies (CDC Dun, Klinkhammer Special, Griffith's Gnat)
- Nymphs (Perdigon, Pheasant Tail, small Copper John)
- Spinners and emergers
Grayling are extremely selective during a hatch — match insect size and color exactly. Long leaders, careful presentation. Classic grayling rivers: Vindelälven, Lainio, Kaitumälven.
Most common methods

Where to find grayling
Grayling are most common in the rivers and mountain lakes of Norrland — the Vindel, Pite, Kalix and Torne rivers and their tributaries are classic grayling water. In central Sweden they are found in Klarälven, Ljungan and Ljusnan. They favour flowing stretches over coarse bottoms at 0.5–2 metres.
Season
The grayling season is open from mid-May to September in most counties. June to August is the best period, when insect hatches peak. During the late-summer evening hatches the fishing can be close to magical.
Grayling spawn in April–May over shallow gravel and sand, and are protected in many waters during that period.
Methods and flies
Fly fishing is the traditional and most effective approach. Dry flies in sizes 14–20 such as CDC patterns, Klinkhammers and small sedges work when fish are rising. Nymphing with gold-head patterns and pheasant tails in sizes 12–16 is effective when nothing is hatching.
Spin fishing with small spinners — Mepps 0–1, or a 2 g Panther Martin — also works well in deeper pools.
Lakes where harr has been recorded
Based on species observation data for Swedish waters. Open a lake for weather, fishing times and local rules.
- Harr in FjätsjönJämtland
- Harr in VätternSvealand
- Harr in Lögdeälven (Ekopark Käringberget)Västerbotten
- Harr in Heinäjärvi
- Harr in Flättjärnen
- Harr in Torne älvNorrland
- Harr in RevsundssjönJämtland
- Harr in StorsjönJämtland
- Harr in IndalsälvenNorrland
- Harr in ToftanDalarna
- Harr in FlåsjönJämtland
- Harr in MalgomajVästerbotten (Vilhelmina)
Fishing guides for harr
Frequently asked questions
When is the season for harr?
The peak season for harr in Sweden is June-September.
How big does harr get?
Harr can grow up to 2.0 kg.
What's the best method to catch harr?
Common methods for harr are Fly fishing.
Which techniques work for harr?
Fly fishing — see the full guide for the right gear, baits and season.
Which bait works best for harr?
Proven baits: Small dry flies (CDC Dun, Klinkhammer Special, Griffith's Gnat), Nymphs (Perdigon, Pheasant Tail, small Copper John), Spinners and emergers.
What is the difference between grayling and whitefish?
Grayling have a large, strikingly coloured dorsal fin that is their signature feature. Whitefish lack it and have a slimmer, more streamlined body with a longer snout.
When do grayling spawn?
Grayling spawn in April–May at water temperatures around 5–10°C, usually over shallow flowing gravel. Closed seasons vary by county.
Which flies work best for grayling?
Small dry flies on size 14–20 hooks — CDC patterns, Klinkhammers, spent spinners — and gold-head nymphs in sizes 12–16. Grayling often take smaller flies than trout in the same water.
Do I need a permit to fish for grayling?
Yes — most grayling waters require a local fishing permit (fiskekort) from the local fishery conservation area. Check the rules and buy a permit through local tourist offices or ifiske.se before you fish.