Freestone · Mixed Sedimentary · Southland

Mataura River

Mataura River terrain map
Good · Brown Trout
Hare & Copper Nymph · 12-16
Goodlive now
A proper day on the water
Low and clear — careful approach country. Stay small, stay accurate.
75% confidence
What moved it
  • LevelProxyvia Pomahaka River
  • Water temp8.2°C
  • ClarityClear
Today's fly
Hare & Copper Nymph
Hare & Copper Nymph12-16
High-confidence seasonal pick
Conditions on the water
Proxy gauge
Level
Steady
Proxy
via Pomahaka River
Water temp8.2°C
ClarityClear
Weather4°C
WindSW 37 km/h
Pressure1002 hPa
Rain · recent1.2 mm
Rain · ahead13.9 mm

No gauge on this water — conditions are inferred from Pomahaka River. The trend transfers, the absolute level does not.

How these readings are sourced

Weather-only: no live gauge wired. Read flow trend and clarity — dry-fly best on low, clear water.

Water temperature for Brown Trout
Cool — slow
8°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.
Why this works
Good — water clarity is working for you, but time of day is the limiting factor today.
Hatch timeline · todayQuiet day

Hatch predictions

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

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Sub-surface · on the nymphunder the surface

Hatch predictions

See the full sub-surface read with Pro.

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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
2
2
2
2
2
1
1
2
2
Deleatidium / NZ Mayfly DunHatch
3
3
3
3
2
2
3
3
3
Burrowing Mayfly / Green MayflyHatch
3
2
2
Caddis / SedgeHatch
3
3
3
2
2
3
Cased Caddis / CreeperHatch
3
3
3
2
2
3
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.
  • Southland Fish & Game region — a Fish & Game licence is required
  • Check the current Anglers Notice for method, bag and any C&R water
  • Check Clean Dry (didymo present).
What's coming
Plan ahead
5-day outlook
Other water nearby · 2
Pomahaka River
30 km
Brown trout
Oreti River
57 km
0
Brown trout
The full read · show the working · for Brown Trout · confidence 75%
How the 69 is built — score × weight = contribution
Temperature68 × 28%19.0
Flow80 × 22%17.6
Clarity95 × 18%17.1
Feeding Time40 × 13%5.2
Pressure80 × 7%5.6
Insect activity41 × 12%4.9
Conditions total= 69
Can you trust it?
Water temperatureair-to-water estimateestimated
Level / flowproxy via Pomahaka Riverproxy
Prey activitymodelled from regional profilemodelled
What would change the calculation
Warmer water — toward the 10–16 °C ideal band — would lift the temperature score.
The dawn and dusk windows score higher than the midday lull.
Directions
Apple MapsGoogle Maps
Seasons & zones
  • Trout year-round (lower/main river); some reaches 1 October → year-round / 30 September

    Southland Fish & Game licence required. Legal status: guidance_not_permission — confirm reach rules in the current Anglers Notice.

Related guides
Euro Nymphingsubsurface methods
Booking & contacts