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
Czech Nymph
Forecast · Today
Closed season
Out of season. Try elsewhere.
90% projected
Today's fly
Czech Nymph
Czech Nymph
Conditions on the water · Today
Live gauge
Level
Falling
0.17 m
Dropping after lift
Water temp9.7°C
ClaritySlightly coloured
Weather3°C
WindN 12 km/h
Pressure1016 hPa
Rain · recent2.1 mm
Rain · ahead2.1 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
Cool — slow
10°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
Hatch timeline · todayPeak at 12pm

12pm(now) — Autumn Olive

Stage: On emergersApproach: Emerger or dryActivity: 49%
Also:Autumn Needle Fly33%Black Midge29%
Peak emergence window5 food groups active

Peak activity at 12pm — Autumn Olive (Autumn Olive, Peak emergence window)

Sub-surface · on the nymphunder the surface

Hatch predictions

Top nymph shown — see all 4 guilds as a supporter.

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Beyond the hatch · worth watchingambient prey(1)

Hatch predictions

Top prey shown — see all 3 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 · November 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
Gallery · 1
  1. Terrain map of the venue
    Terrain map
About this water

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 75%
How the 0 is built — score × weight = contribution
Temperature91 × 28%25.5
Flow80 × 22%17.6
Clarity95 × 18%17.1
Feeding Time45 × 13%5.9
Pressure80 × 7%5.6
Insect activity59 × 12%7.1
Conditions total= 79
Can you trust it?
Water temperatureair-to-water estimateestimated
Level / flowon-river gaugeobserved
Prey activitysurvey-backed invertebrate datasurvey
What would change the calculation
The dawn and dusk windows score higher than the midday lull.
Directions
Seasons & zones
  • Trout 1 April → 30 September
Related guides
Casting instructors near here
Booking & contacts
At a glance

River Whitewater is a chalk stream in Hampshire, England. Its recorded elevation is about 73 m above sea level and the catchment geology is chalk. The river is described as roughly 17 km long. The species listed for this water is brown trout. The trout season is recorded as running from 1 April to 30 September. Best window recorded for anglers: April–June; September. Core methods listed: dry fly; upstream nymph. Level and flow data for this water is linked from the gauge “Lodge Farm North Warnborough (2442TH) — single station near the Loddon confluence”. Its Water Framework Directive ecological status is recorded as poor. Nearby waters in our listings include River Loddon at 10 km, Felix Farm Trout Fishery at 16 km and Frensham Trout Fishery at 18 km.