Chalk-stream round-up: early April
Chalk-stream round-up: Test, Itchen and Hampshire Avon — early April
What is biting today
Early April on the southern chalks is producing consistent nymph activity. Brown trout are taking subsurface offerings at first light and in late afternoon on the Test and Itchen, while grayling are active in the colder margins of the Hampshire Avon. Nymphing with a pheasant tail in sizes 14–18 and a klinkhamer emerger in sizes 12–16 has accounted for the bulk of recent takes; beadhead patterns and weighted flies prove effective on deeper seams. Presentation upstream with a long leader and a natural dead drift is delivering best results.
Where and water levels
Flows across the Test valley are slightly below average for early April after a dry spell, leaving Leckford and Stockbridge beats clear with gravel shoals showing. The Itchen between Winchester and New Alresford is true chalk-clear and fishable, with steady trickles rather than spatey flows. The Avon around Harnham, Downton and Fordingbridge reports cooler, lightly tea-stained margins after recent minor spates but overall moderate discharge—ideal for precise nymph presentations near tail-outs and spring-fed runs.
Beat reports and seasonal outlook
Best sport currently comes from Leckford and Stockbridge on the Test, the Winchester–Brambridge corridor on the Itchen and the Harnham reaches of the Avon. Anglers should expect nymphing to dominate through April; as water temperatures rise later in the month emerger and soft-hackle tactics will pick up, and selective surface takes should increase by late April into May. Morning windows and changing light remain prime times for finding feeding trout and grayling.
Recommended: klinkhamer emerger pack