Waters · United Kingdom
River Test fishing report
Updated Sunday, 23 August 2026 · refreshed several times daily
The world's most famous chalkstream: gin-clear, weed-cut beats where brown trout sip mayfly. Grayling extend the season deep into winter when the fly water goes quiet.
Today's report: fair (56/100)
Grayling is the most promising species on River Test today. Water temperature is around 17°C and barometric pressure is stable. Gauge Kings Somborne shows the water level steady (0 cm/24h).
Best time to fish today
- 21:00–23:00 local time — score 59/100
- 01:00–03:00 local time — score 57/100
- 08:00–10:00 local time — score 67/100
3-day outlook by species
| Species | Saturday 22 Aug | Sunday 23 Aug | Monday 24 Aug |
|---|---|---|---|
| Brown Trout | 44 — fair | 46 — fair | 45 — fair |
| Grayling | 56 — fair | 70 — good | 66 — good |
| Atlantic salmon | 55 — fair | 58 — fair | 56 — fair |
Why this score
Cast & Scan uses a deterministic, published scoring model — no black box. The strongest influences on today's River Test rating:
- water temperature: helping (+1)
- pressure trend: helping (+1)
- solunar period: helping (+1)
- precipitation: helping (+0.9)
- river flow: helping (+0.9)
- wind: helping (+0.75)
Forecast computed Sun, 23 Aug 2026 13:08:29 GMT · data: Open-Meteo + gauge Kings Somborne · refreshed several times daily · see our published accuracy
Scan your exact spot
This page rates a representative point on River Test. Bays, river mouths and depth changes can fish very differently — open the scanner, drop a pin on your exact swim and get a spot-specific forecast with tactics. Free, in the browser, no signup.
Wondering how this stacks up against the apps you already know? Cast & Scan vs Fishbrain vs BassForecast — an honest comparison, including where they beat us.
Nearby waters
- River Thames (Reading) — Berkshire, England (59 km away)
- Chew Valley Lake — Somerset, England (85 km away)
- River Wye (Hereford) — Herefordshire, England (140 km away)
- Rutland Water — Rutland, England (188 km away)