Chalk Stream · Chalk · London

River Wandle

River Wandle venue image
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London's most famous urban chalkstream: a short, intimate, heavily restored river flowing from the chalk-fed headwaters around Croydon and Carshalton through Morden, Wimbledon and Wandsworth to the Thames.

Species

A proper day on the water

Low and clear — careful approach country. Stay small, stay accurate.

75% confidence in this read
Water temperature for brown trout
Cool — slow
10°C est.ideal 10–16°C
0°14°28°
Why this score · for brown trout
  • Temperature9628% weight
  • Flow6022% weight
  • Clarity9518% weight
  • Feeding Time5013% weight
  • Pressure807% weight
  • Prey Activity5012% weight
Conditions
Level
Dry recently
No gauge reading
Water temp
9.8°C
Estimated
Clarity
Clear
Air temp
10°C
Wind
SW 13 km/h
Gentle breeze
Pressure
1009 hPa
Rain · 48h
1.2 mm
No meaningful rain
Rain · ahead
3.6 mm
Light rain · next 48h

Live readings — water temperature is an estimate where the gauge does not record it.

How to fish it · for brown trout
When
Nymphing can work through most of the day.
Where
Cover mixed depths.
Method
Start with tight-line nymphs and adjust if fish rise or drift higher.
Kit
9 ft #4 rod, floating line, 12 ft tapered leader to 4–5 lb fluoro tippet.
Why this works
Good conditions. Temperature is favourable (96), Prey activity is weakest (50).
Through the year
0–3 scale · May highlighted
J
F
M
A
M
J
J
A
S
O
N
D
Trout seasonSeason
1
2
2
2
2
1
Brown SedgeHatch
2
3
2
Freshwater ShrimpHatch
2
3
3
3
3
3
3
3
3
3
3
2
Blue Winged OliveHatch
2
3
3
3
3
2
Mayfly (Green Drake)Hatch
2
2

Numbers are intensity 0 (none) to 3 (peak) — a guide, not a guarantee.

Gallery · 1
  1. Terrain map of the venue
    Terrain map
Directions
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About this water

London's most famous urban chalkstream: a short, intimate, heavily restored river flowing from the chalk-fed headwaters around Croydon and Carshalton through Morden, Wimbledon and Wandsworth to the Thames. Once written off as ecologically dead, it now supports brown trout again alongside a proper mixed coarse fishery. The appeal is not grand private-chalkstream elegance but close-quarters stalking, tricky little glides, undercut banks, bridge water, public-park access and a strong conservation story.

  • Chalk
Seasons & zones
  • Trout1 April → 30 September
  • Coarse16 June → 14 March
Other water nearby · 5