Rules at a glance
- Free fishing
- Fly only
Water temperature for Brown Trout
Ideal10°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
Chironomids
Damselflies & dragonflies
Hatch timeline · tomorrowPeak at 11h
12h(now) — NZ Green Stonefly
Stage: Creeping nymphsApproach: Heavy nymphActivity: 48%
Also:Black Midge24%Deleatidium / NZ Mayfly Dun24%
Peak emergence windowWeather boost5 food groups active
Peak activity at 11h — NZ Green Stonefly (NZ Green Stonefly, Peak emergence window)
Sub-surface · on the nymphunder the surface
Hatch predictions
Top nymph shown — see all 3 guilds as a supporter.
Start free trial14-day free trial. Cancel anytime.
Evidence
Records-basedModerate confidence
Based on species-occurrence records, not local invertebrate surveys.
Through the year
0–3 scale · September 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
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
Fly box · Brown Trout
Permits & access
Permit required — see local rules.
- North Canterbury Fish & Game — a Fish & Game licence is required
- ⚠️ Sea-run salmon: ONE-fish season limit (2025/26) — verify annually; conservation-first
- Check the current Anglers Notice
- Check Clean Dry (didymo present).
What's coming
Plan ahead
5-day outlook
Gallery · 2
The Hurunui River near State Highway 7 Terrain map
The full read · show the working · for Brown Trout · confidence 90%
How the 0 is built — score × weight = contribution
Temperature100 × 28%28.0
Flow80 × 22%17.6
Clarity95 × 18%17.1
Feeding Time60 × 13%7.8
Pressure80 × 7%5.6
Insect activity70 × 12%8.4
Conditions total= 85
Can you trust it?
Water temperatureair-to-water estimateestimated
Level / flowon-river gaugeobserved
Prey activitymodelled from regional profilemodelled
What would change the calculation
The dawn and dusk windows score higher than the midday lull.
Directions
Seasons & zones
- Trout 1 October (lower) / 1 November (back-country) → 30 April (back-country) / year-round (lower)
North Canterbury Fish & Game licence required. ⚠️ Sea-run salmon one-fish season limit (2025/26). Legal status: guidance_not_permission.
Related guides
Booking & contacts
Permits & access
Boards & regulators
Hurunui River
Water temperature for Brown Trout
Ideal10°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 · tomorrowPeak at 11h
12h(now) — NZ Green Stonefly
Stage: Creeping nymphsApproach: Heavy nymphActivity: 48%
Also:Black Midge24%Deleatidium / NZ Mayfly Dun24%
Peak emergence windowWeather boost5 food groups active
Peak activity at 11h — NZ Green Stonefly (NZ Green Stonefly, Peak emergence window)
Sub-surface · on the nymphunder the surface
Hatch predictions
Top nymph shown — see all 3 guilds as a supporter.
Start free trial14-day free trial. Cancel anytime.
Evidence
Records-basedModerate confidence
Based on species-occurrence records, not local invertebrate surveys.
Through the year
0–3 scale · September 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
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
Fly box · Brown Trout
Permits & access
Permit required — see local rules.
- North Canterbury Fish & Game — a Fish & Game licence is required
- ⚠️ Sea-run salmon: ONE-fish season limit (2025/26) — verify annually; conservation-first
- Check the current Anglers Notice
- Check Clean Dry (didymo present).
What's coming
Plan ahead
5-day outlook
Gallery · 2
The Hurunui River near State Highway 7 Terrain map
The full read · show the working · for Brown Trout · confidence 90%
How the 0 is built — score × weight = contribution
Temperature100 × 28%28.0
Flow80 × 22%17.6
Clarity95 × 18%17.1
Feeding Time60 × 13%7.8
Pressure80 × 7%5.6
Insect activity70 × 12%8.4
Conditions total= 85
Can you trust it?
Water temperatureair-to-water estimateestimated
Level / flowon-river gaugeobserved
Prey activitymodelled from regional profilemodelled
What would change the calculation
The dawn and dusk windows score higher than the midday lull.
Directions
Seasons & zones
- Trout 1 October (lower) / 1 November (back-country) → 30 April (back-country) / year-round (lower)
North Canterbury Fish & Game licence required. ⚠️ Sea-run salmon one-fish season limit (2025/26). Legal status: guidance_not_permission.
Related guides
Booking & contacts
Permits & access
Boards & regulators