September is a settling month on the river. Cooler nights, steadier flows, and fish that start to feed with more intent – but still demand accuracy and restraint. This pack is built for that shift.
It blends dependable autumn dries with proven subsurface patterns, giving you coverage from surface feeders through to fish holding deeper as temperatures drop.
What’s inside and why it earns its place:
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Olive Dun – Size 14
A September staple. Olives remain one of the most reliable upwinged flies of the month, especially on cooler, overcast days. Fish it cleanly in the film when trout are rising with confidence.
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Sawyer’s Killer Bug
Simple, heavy, and brutally effective. As flows lift or colour creeps in, this remains one of the most consistent flies you can tie on. Ideal for tight-line nymphing on the dropper, or fished traditional upstream nymph.
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Caperer
A classic wet fly that comes into its own in autumn. Excellent in broken water or swung through runs when fish are sitting a little deeper and looking for movement rather than detail.
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Iron Blue Dun – Size 14
A true late-season fly. When the weather turns dull, cold, or wet, the Iron Blue often appears when nothing else does. One of the most reliable dries for September and beyond.
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Micro Caddis Pupa
Small, subtle, and perfectly timed. Fish this just off the bottom or as a dropper under a dry.
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Tungsten Drab Hare’s Ear
A modern workhorse. Gets down quickly, looks natural, and fishes well in a wide range of flows. Ideal as a point fly with a lighter nymph or pupa above.
How to fish the pack:
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Dull days – olives and Iron Blues when fish show.
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Brighter conditions – nymphs and wets through the runs.
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After rain – Killer Bug and tungsten nymphs to get down fast.
All flies are tied on quality barbless hooks, selected for autumn rivers and responsible catch-and-release fishing.
A practical, confidence-building September selection – designed to help you finish the season well.