Spate · Granite · Nelson / West Coast

Buller River / Kawatiri

Buller River / Kawatiri — 00 1294 Buller River - New Zealand

The Buller is the great river of the Nelson lakes and West Coast — a big, powerful, partly lake-fed spate river holding strong brown trout in its boulder runs and gorge pools.

Poor · Brown Trout
Hare & Copper Nymph · 12-16
Closed season
Season reopens 1 October. Plenty of other water available now.
Closed — confidence not applicable today.
What moved it
  • Level1.94 mLifting fast
  • Water temp10.3°C
  • ClarityVery colouredColouring up
Today's fly
Hare & Copper Nymph
Hare & Copper Nymph12-16
High-confidence seasonal pick
Conditions on the water
Live gauge
Level
Rising
1.94 m
Lifting fast
Water temp10.3°C
ClarityVery coloured
Weather7°C
WindNW 13 km/h
Pressure1004 hPa
Rain · recent28.3 mm
Rain · ahead0.0 mm

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

How these readings are sourced

Weather-only: no live gauge wired. Spate river — fishability is driven by falling/clearing flow after rain. Stale data is dangerous here; conditions change fast.

Water temperature for Brown Trout
Ideal
10°C est.ideal 1016°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.
Hatch timeline · todayQuiet day

Hatch predictions

Today's headline hatch shown — see all 3 active hatches hour by hour with Pro.

Start free trial

14-day free trial. Cancel anytime.

Evidence
ModelledModerate confidence

Modelled from regional ecology — no survey or occurrence data for this water yet.

Through the year
0–3 scale · July highlighted
J
F
M
A
M
J
J
A
S
O
N
D
Trout seasonSeason
2
2
2
1
1
2
2
Deleatidium / NZ Mayfly DunHatch
3
3
3
3
2
2
3
3
3
Large Dark MayflyHatch
3
3
2
2
3
Burrowing Mayfly / Green MayflyHatch
3
2
2
Caddis / SedgeHatch
3
3
3
2
2
3

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

Ranked for today
Brown Trout fly box
Permits & access
Permit required — see local rules.
  • Nelson-Marlborough and West Coast Fish & Game regions (the system spans both) — a Fish & Game licence is required
  • Check the current Anglers Notice
  • Check Clean Dry (didymo present).
What's coming
Plan ahead
5-day outlook
Gallery · 2
  1. Buller River / Kawatiri — 00 1294 Buller River - New Zealand
    00 1294 Buller River - New Zealand
  2. Terrain map of the venue
    Terrain map
About this water

The Buller is the great river of the Nelson lakes and West Coast — a big, powerful, partly lake-fed spate river holding strong brown trout in its boulder runs and gorge pools. The upper river below Lake Rotoiti is steadier and a fine large-river fishery; downstream it gathers serious West Coast rain and can blow out fast. The whole catchment fishes by spate timing: wait for the river to fall and clear toward normal, then fish the runs and pool tails.

Under the surface

The Buller / Kawatiri leaves Lake Rotoiti and gathers the rain of the Nelson and West Coast ranges into a long, powerful river running west through bush-clad gorges to the Tasman Sea at Westport. Big brown trout hold in its boulder runs and green pools, in a high-rainfall country where the river can rise and fall dramatically.

Wading: Powerful big water, fast rises after rain, slick boulders — serious wading care

  • River
  • Granite
  • Confined
  • Large river
  • Gorge
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 Time55 × 13%7.2
Pressure80 × 7%5.6
Insect activity30 × 12%3.6
Limiting factor: Water is very coloured — too coloured for Brown Trout= 59
Can you trust it?
Water temperatureair-to-water estimateestimated
Level / flowon-river gaugeobserved
Prey activitymodelled from regional profilemodelled
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
Seasons & zones
  • Trout 1 October (main river); some back-country 1 November30 April (back-country) / year-round (lower)

    Nelson-Marlborough / West Coast Fish & Game licence required. Legal status: guidance_not_permission.

Related guides
Booking & contacts