River Test
Hampshire · Chalk Stream
Hampshire, England, UK
Open live forecast →Target species: Brown and Grayling.
About this Water
- Chalk Stream
- Best months: May–Oct (season); peak May–June (mayfly)
The River Test in Hampshire is the most famous chalk stream in the world — the birthplace of dry fly fishing and the origin of the sport as we know it. Clear, cold spring water emerges directly from the chalk aquifer, maintaining remarkable temperature stability and extraordinary water clarity year-round. This is hallowed water: Halford invented the dry fly here in the 1880s, and the Test's brown trout, though deeply selective, are among the most beautiful wild fish in Britain.
Frederic Halford developed the modern dry fly technique on the Test in the 1880s — every floating fly ever cast to a trout traces its lineage back to experiments on this river.
January Outlook
January on the River Test — England's most famous chalk stream is in grayling season. Brown trout are closed but grayling fishing continues on many beats through winter. The consistent chalk stream temperatures (48–52°F year-round) keep grayling active even in cold weather.
Productive Patterns
- Sawyer's Bug (PTN)
- Grayling Goldhead Nymph
- CDC Dry Fly (small)
- Frank Sawyer's Killer Bug
Tips
January grayling fishing on the Test is a refined winter pursuit. Fish the deep slots and pools where grayling concentrate. The upstream nymph method (Sawyer's Bug) is the traditional approach. Some beats are closed in January — contact estate beat managers for availability.
Water Notes
Water 46-50°F. Chalk stream flows extremely stable year-round. Grayling season — brown trout closed. Check individual beat regulations.
February Outlook
February grayling fishing on the Test. The chalk stream's consistent temperatures make winter grayling fishing reliably productive. The Lady of the Stream is at her most challenging and most rewarding on cold February afternoons.
Productive Patterns
- Sawyer's Bug
- Grayling Steel Blue (dry)
- Hungarian Partridge Soft Hackle
- PTN (heavy)
Tips
February grayling on the Test can be exceptional. Fish the known grayling pools methodically with the upstream nymph method. Fine tippet (6X) and precise presentation required. Some beats remain open for grayling until the end of February before preparing for the April trout season.
Water Notes
Water 46-50°F. Consistent chalk stream temperatures year-round. Grayling season continues. Beats may be closed from late February for beat maintenance.
March Outlook
March on the Test is the transition month — grayling season ends and the chalk stream is prepared for the April trout season opening. Some beats accept grayling fishing in early March. Beat preparation and stocking begins mid-March. The first hatches of the trout season are weeks away.
Productive Patterns
- Planning season — trout season opens April 1
- Grayling Nymph (early month only)
- Tie Grannom and Mayfly patterns for spring
Tips
March on the Test is the end of grayling season and the beginning of anticipation for the trout season. Most beats close for preparation in March. Book April–May Mayfly beats well in advance — Test Mayfly beats book 2–3 years ahead. The Grannom hatch begins in April and the legendary Mayfly in mid-May.
Water Notes
Water 46-50°F. Chalk stream stable as always. Grayling season ends. Trout season opens April 1 on most beats.
April Outlook
April opens the Test chalk stream season on the classic 'May fly' beats. While the main Mayfly hatch isn't until May, Grannom caddis and BWOs provide excellent early hatches. Brown trout and grayling are very active in April.
Productive Patterns
- Grannom (caddis) #14
- BWO Parachute #18
- Hare's Ear Nymph (Czech)
- Pheasant Tail
Tips
The Test requires a license from the beat owner — access is exclusively by invitation or day ticket from estates. Dry fly only above the surface film is the tradition. Nymphing is allowed in some beats.
Water Notes
Water 46-52°F. Chalk stream flows are extremely stable year-round. Clarity is exceptional — the water is gin-clear from chalk filtration.
May Outlook
May is the legendary Mayfly season on the Test. The mass emergence of Ephemera danica (the true Mayfly) in mid-to-late May produces the finest dry fly fishing in the world. Large brown trout that have been selective all year become almost reckless.
Productive Patterns
- Mayfly Parachute #10-12
- Klinkhåmer Mayfly
- Spent Mayfly
- Mayfly Emerger
Tips
'Duffers' Fortnight' — even inexperienced anglers catch fish during the peak Mayfly. Book beats at least 2 years in advance. Fish the visible risers — stalk each fish carefully.
Water Notes
Water 52-58°F. Stable chalk stream conditions. The Mayfly hatch is 2-3 weeks of extraordinary fishing.
June Outlook
June brings excellent dry fly fishing with evening hatches of various olives and sedges. Post-Mayfly fish are selective but catchable. The famous Pale Watery and Medium Olive hatches provide consistent evening rises.
Productive Patterns
- Pale Watery #16-18
- Medium Olive Spinner
- Elk Hair Caddis #14
- Blue-Winged Olive
Tips
Evening fishing is best in June — the spinner falls after 7pm can be extraordinary. Target the tails of pools where fish are leisurely sipping spinners.
Water Notes
Water 56-62°F. Long English evenings mean prime fishing until 9:30pm. Very stable chalk stream conditions.
July Outlook
July is excellent for summer chalk stream fishing. Multiple hatch species provide opportunities throughout the day. The Test's famous wild brown trout and grayling are in excellent condition. Evening sedge (caddis) hatches are substantial.
Productive Patterns
- Evening Sedge #12-14
- Spent Olive Spinner
- Blue-Winged Olive Dun
- Klinkhåmer (small)
Tips
Upstream dry fly presentation to individual rising fish. The chalk stream method requires complete stealth and precise casting. Crawl into position and wait for the fish to rise before casting.
Water Notes
Water 58-64°F. Stable but warm in July. Dawn and evening are the most productive periods.
August Outlook
August has good fishing with evening hatches continuing. Grayling start to become more prominent as trout season prepares to close. The Trico-like small dark olive hatches in the morning create demanding fishing.
Productive Patterns
- Small Dark Olive #20
- Evening Sedge
- Blue-Winged Olive Spinner
- Grayling Fly (small)
Tips
August requires more precise matching of tiny olives. 6X tippet minimum. Grayling are increasingly the target as the end of the trout season approaches.
Water Notes
Water 60-66°F. The warmest month. Evening fishing avoids the warmest temperatures. Chalk stream remains clear and fishable.
September Outlook
September marks the end of the trout season and the beginning of excellent grayling fishing on the Test. Large grayling (2-4 lbs) become the primary target. Some estates run grayling-specific days through winter.
Productive Patterns
- Grayling Goldhead Nymph
- Frank Sawyer's Bug
- Small Dry Fly (grayling)
- Tup's Indispensable
Tips
Grayling fishing on the Test is world-class. Large fish over 3 lbs are common. The traditional upstream nymph (Sawyer Bug method) is especially effective.
Water Notes
Water 54-60°F. Cooling and ideal for grayling. The chalk stream clarity makes stalking individual grayling possible.
October Outlook
October is peak grayling season on the Test. This is 'The Lady of the Stream' at her finest. The chalk stream grayling of the Test are renowned for size and difficulty. October conditions are excellent with cool water and good visibility.
Productive Patterns
- Sawyer's Bug
- Grayling Steel Blue (dry)
- Hungarian Partridge Soft Hackle
- PTN (Czech Nymph style)
Tips
The dry fly fishing for grayling is exceptional in October — fish rise to tiny dries in slow, gin-clear pools. The nymph upstream technique on the Test is challenging but rewarding.
Water Notes
Water 50-56°F. Perfect grayling conditions. Stable chalk stream flows through autumn.
November Outlook
November continues excellent grayling fishing through the Test. Some beats are open for grayling until the end of February. Cold water keeps grayling active and feeding. The riverine landscape is beautiful in late autumn.
Productive Patterns
- Grayling Goldhead
- Sawyer's Bug
- PTN (heavy)
- Small Dry (CDC)
Tips
Winter grayling fishing on the Test is a refined art. Fish the deep slots and pools where grayling congregate in cold weather. Light mends and sensitive nymphing indicators.
Water Notes
Water 44-50°F. Cold chalk stream water. Grayling remain very active even in cold temperatures.
December Outlook
December on the River Test — grayling season continues on this world-famous Hampshire chalk stream. The chalk-filtered water maintains 46–50°F year-round. December grayling fishing on the Test is a quintessentially English experience: cold, clear, and exceptionally precise.
Productive Patterns
- Sawyer's Bug
- Grayling Goldhead
- CDC Dry Fly #18-20
- PTN (Czech style)
Tips
December grayling fishing on the Test requires fine technique and patience. Fish the deep pools in the afternoon when light is best. The chalk stream's extraordinary clarity means every cast must be perfect. Contact estate beat managers for availability — not all beats are open through December.
Water Notes
Water 46-50°F. Chalk stream stable as always — 46–50°F year-round. Grayling season open. Brown trout closed. Winter beat availability varies.
Hatch Calendar
| Insect | Peak | Active | Size | Productive Patterns |
|---|---|---|---|---|
| Blue Winged Olive Baetis rhodani |
May, Jun | Apr, May, Jun, Sep, Oct | #14–16 |
|
| Mayfly (Drake) Ephemera danica |
May | May, Jun | #8–10 |
|
Access & Approach
Stockbridge and Romsey, Hampshire. Almost all Test fishing is privately controlled by estates and syndicates — day rods are rarely available and extremely expensive. The Houghton Club is among the most exclusive fishing clubs in the world. Grayling fishing on some stretches is available to visiting anglers through booking agencies.
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About Current
River Test conditions on Current combine real-time flow data (USGS, WSC, CDEC, CEHQ), weather, tide predictions, hatch probabilities calibrated to this specific water, and recent fly shop reports from the area.
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