Chalk Stream · Chalk · Hampshire, GB-ENG

River Whitewater

River Whitewater venue image

The Whitewater is a Loddon tributary in northeast Hampshire — pure chalk water, spring-fed, clear enough to watch a trout inspect and reject your fly from twelve feet.

Today · Closed season
Coch-y-bonddu
Forecast · Today
Closed season
Out of season. Try elsewhere.
45% projected
Today's fly
Coch-y-bonddu
Coch-y-bonddu
Conditions on the water · Today
Live gauge
Level
Rising
0.19 m
Lifting fast
Water temp15.8°C
ClarityVery coloured
Weather18°C
WindN 18 km/h
Pressure1012 hPa
Rain · recent0.0 mm
Rain · ahead0.0 mm

The nearest gauge doesn't record temperatures, so we've estimated it — defer to the river keeper's advice.

Water temperature for Brown Trout
Ideal
16°C est.ideal 10–16°C
0°14°28°
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.
Likely species
Caddisflies
Gammarids
Hatch timeline · todayPeak at 4pm

12pm(now) — Daddy Long Legs

Stage: On emergersApproach: Emerger or dryActivity: 38%
Also:Cinnamon Sedge23%Pale Watery23%
Weather boost9 food groups active

Peak activity at 4pm — Small Spurwing (Small Spurwing, 12 food groups active)

Sub-surface · on the nymphunder the surface

Hatch predictions

Top nymph shown — see all 2 guilds as a supporter.

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Beyond the hatch · worth watchingambient prey(1)

Hatch predictions

Top prey shown — see all 4 as a supporter.

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Evidence
Survey-backed · regionalHigh confidence

Backed by regional invertebrate surveys; no sampling on this exact reach yet.

Through the year
0–3 scale · September highlighted
J
F
M
A
M
J
J
A
S
O
N
D
Trout seasonSeason
1
2
2
2
2
1
Mayfly (Green Drake)Hatch
2
2
Freshwater ShrimpHatch
2
3
3
3
3
3
3
3
3
3
3
2
CapererHatch
2
3
3
2
Brown SedgeHatch
2
3
3
3
2

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

Ranked for today
Brown Trout fly box

The heartland of English dry fly fishing. Upstream dry fly and emerger presentation dominates. Nymphing restricted or discouraged on many beats. Gin-clear alkaline water, prolific weed growth, educated wild brown trout. Precise imitation and delicate presentation are paramount.

Permits & access
Permit required — see local rules.
  • Private syndicate.
What's coming
Plan ahead
5-day outlook
Other water nearby · 5
River Loddon
10 km
Brown trout
Felix Farm Trout Fishery
16 km
Rainbow trout
Frensham Trout Fishery
18 km
Rainbow trout
Sportfish Game Fishing Centre
19 km
Rainbow trout · Brown trout
River Pang
24 km
Brown trout
Gallery · 1
  1. Terrain map of the venue
    Terrain map
About this water

The Whitewater is a Loddon tributary in northeast Hampshire — pure chalk water, spring-fed, clear enough to watch a trout inspect and reject your fly from twelve feet. Which it will. The chalk stream is an education in the gap between being good enough and being good enough on a particular day when the fish have decided to be particular about it; the Whitewater's trout have decided to be particular for as long as anyone can remember. Small water, almost entirely private syndicate. One of those rivers that makes you better at every other river you'll ever fish.

  • Chalk
Water quality (WFD)
  • Ecology: Poor
Water quality details
  • Dissolved oxygen: Moderate
  • Ammonia (Phys-Chem): High
  • pH: High
  • Phosphate: Good
  • Temperature: High

EA (England) · GB106039017240

The full read · show the working · for Brown Trout · confidence 45%
How the 0 is built — score × weight = contribution
Temperature100 × 28%28.0
Flow55 × 22%12.1
Clarity15 × 18%2.7
Feeding Time45 × 13%5.9
Pressure80 × 7%5.6
Insect activity54 × 12%6.5
Limiting factor: Water is very coloured — too coloured for Brown Trout= 61
Can you trust it?
Water temperatureair-to-water estimateestimated
Level / flowon-river gaugeobserved
Prey activitysurvey-backed invertebrate datasurvey
What would change the calculation
A drop and clear would lift the flow and clarity scores.
The dawn and dusk windows score higher than the midday lull.
Directions
Apple MapsGoogle Maps
Seasons & zones
  • Trout 1 April → 30 September
Related guides
Chalkstream Playbookchalk stream tacticsTrout Near Londonaccess guideEuro Nymphingsubsurface methods
Casting instructors near here
Booking & contacts