Angling Denmark in March


Along the coasts, lots of things are happening in March. The air temperature is still a little lower than that of the water – typically 2-3 degrees – but the sun is starting to make an impact, and that is clearly felt under the water.

The salty sand hoppers are waking up and starting to mate. Now is the time when it is possible to see the little males riding around on the big females in the shallow water. The survival of the species is at stake, and this does not go off quietly – not even among sand hoppers.

The sea trout along the coast are also fond of sand hoppers – and they do not care about the sex. Sand hoppers are a delicacy for any sea trout – and sand hoppers make their flesh nice and red. So the angler who goes fly-fishing along the coast had better have some good imitations in his box – and fish deeply and slowly.

Worm hatches in the sea

But March is also the month when it is possible to experience a major bristle worm party. Typically this happens in conjunction with the full moon or new moon, which seems to coordinate the swarming of large bristle worms.

When the water temperature and phase of the moon are in harmony, the otherwise quite fierce Nereis-species leave their holes on the bottom to go to the surface to spawn. Here they circle around until they explode in a giant orgasm that releases the reproductive organisms – and leaves the bristle worms themselves as lifeless bodies.

The birds and fish of the coast really know how to seize the opportunity when the bristle worms are spawning. It is quite simply the first big meal of the spring to be had here – a kind of strawberry season for the birds and fish which have had to languish in the cold all through the winter.

This spawning may be so intense and concentrated that sometimes the authorities get phone calls from worried people who think that they have witnessed yet another environmental disaster!

Trout in the rivers

Finally, March is the month when the “old” trout premiere in the rivers takes place. There are still many river-anglers who regard this as the only true start of the season.

But whether it is the true, or the wrong start of the season, two things are certain: there are rarely as many shiny Greenlanders in the rivers in March as in January, and the lean kelts are usually in slightly better condition than earlier in the year. Which is both good and bad.

The regular inhabitants of the river – river trout, rainbow trout and grayling – who are very dependent on the amount of feed in the river, feel both good and bad here in March. Like its cousin the sea trout, the river trout is a winter spawner, and it is lean and slender after breeding.

The rainbow trout typically spawns in the spring, however, and is usually in the best possible condition – albeit strongly coloured, and therefore not quite as delicious as otherwise. But the red stripe along the side is brighter than ever! The rainbow trout has been truly stuffing itself with roe from the spawning of river and sea trout, and they are more than ready for the approaching breeding.

The grayling, too, is at the top of its form. It does not change character to the same extent in the period preceding spawning, which typically takes place from the end of March until the beginning of May. The grayling is protected from 15 March until 15 May, and is thus legal prey in the first half of this month.

However, the fly-fisher who wants to make contact with this wonderful fish will have to use a sink line or weighted flies to get down into the still rather cold water.

Pike and pikeperch in the lakes

Spawning season is closing in on pike and pikeperch. Pike spawn in April and pikeperch in May. Both species are putting on weight right now, preparing for the demanding spawning season ahead.

Thus you will be able to catch the heaviest specimens of both species this time of year. Right now in March!

© Steen Ulnits     phone: int. +45 2332 8988     mail:

Danish Angling Destinations

If you want to experience Denmark and Danish fishing at its very best, take a look at these domestic destinations that I can personally recommend:


Located on the banks of the beautiful River Vejle, this intimate hotel is located very close to Billund International Airport and has its own private stretch of private river angling for brown trout and sea trout. Browns on dries during the day. Sea trout at night.



Located right on the beach at Lillebælt, the narrowest and deepest Danish strait. This location guarantees profitable summertime sea trout angling as the water here will never get too warm for fishing. The current is too strong for that to happen.



Located right on the banks of Denmark’s most prestigious salmon River Skjern where the all-time Danish salmon record was caught back in 1954: 26,5 kg heavy and 136 cm long. This remote hotel has its own private stretch of the famous river.

Gl. Avernæs


This impressive hotel is surrounded by waters offering Denmark’s most productive saltwater fishing for sea run brown trout. More than 25 years of dedicated fisheries management of local rivers has resulted in more sea trout here than anywhere else.