Last updated October 2026
The Wainuiomata River runs south from the Rimutaka Ranges through Wainuiomata to Cook Strait near Baring Head, and it is a brown trout river that Fish & Game manages as a trophy fishery.
The trout are in reasonable numbers and average about 1 kg, and the water is clear, slow and open, so this is stalking and sight fishing with nymphs and dry flies.
The river sits in Wellington’s Fish & Game region, you need a Fish & Game licence, and the season for waters not listed in the regulations runs from 1 October to 30 April. Landowner permission is needed to cross private land.
At a Glance
- Location
- Wainuiomata valley, Lower Hutt, Wellington; the river runs beside the Wainuiomata Coast Road
- Main species
- Brown trout, averaging about 1 kg
- Method
- Nymph and dry fly are recommended; fly, spinner and bait are the authorised methods unless the regulations say otherwise
- Best time
- Warm days and evenings for dry flies; the middle to lower reaches fish best
- Season
- 1 October to 30 April (default for waters not listed in the 2026 to 2027 Wellington regulations)
- Licence
- Fish & Game licence (the Taupō licence is a separate DOC licence)
- Suits
- Anglers happy to stalk and cast accurately; a stealthy approach matters
- Access
- Beside the Coast Road; landowner permission needed to cross private land
- Tides
- None on the freshwater reaches; the mouth is tidal and opens and closes with rain
- Toilets
- Composting toilets at the East Harbour Regional Park car park on the Coast Road; none listed at the Waterworks recreation area
No tides on the freshwater river. Rain lifts and discolours the flow, wind is common in the open valley, and summer warmth can bring algae.
The Background
The Wainuiomata rises in the southern Rimutaka Ranges. The small upper reaches above the township are clean but hold few fish, and the catchment above the Waterworks recreation area is water supply land with strictly controlled entry. The fishing is in the middle of the river, from the township down towards the tidal section.
This is not a river with much structure. The bed is mostly silt between high banks, the valley is open and wind is common, and trout often cruise the pools instead of holding station. They are easy to see near the surface but harder to hook, and they are often not facing upstream, so a very careful approach counts for more than the fly.
It is close to Wellington and gets noticeable pressure, especially at weekends. The river also supports swimming, kayaking and horse riding, and dwarf galaxias, a nationally threatened fish, live in the upper reaches.
The Fish & Game Wellington district page describes the river as a trophy brown trout fishery and says access is from the Wainuiomata Coast Road with landowner permission.
How to Fish the Wainuiomata River
Where and when
Fish the middle to lower reaches, from the township towards the tidal section. Dry flies work through the season, mainly on warm days and in the evening. Pick a pool, stay back from the high bank and watch before you cast. Trout cruising a beat are not always facing upstream, so work out which way they are travelling first.
What to use
- Rod: a 4 or 5 weight suits this small, open river.
- Nymphs: small dark general nymphs, roughly sizes 14 to 18, including small mayfly and caddis patterns.
- Dry flies: mayfly patterns such as an Adams, and a Cicada pattern in summer. At night, a bushy Molefly or a deer-hair sedge.
- Wet flies: a small hackled wet fished in the surface film during a hatch, such as a March Brown in the evening, or larger wet patterns at night.
Methods
Fly, spinner and bait are the authorised methods for waters not listed in the 2026 to 2027 Wellington regulations, but the fishery is best known for its sight fishing with fly. Check the current regulations before you go in case a local restriction applies.
Getting There and Facilities
- Access: the river runs beside the Wainuiomata Coast Road for much of its length. Most of the land beside it is private, so ask the landowner before you cross.
- Waterworks recreation area: signposted from Main Road and reached by Moores Valley Road, Reservoir Road or Hine Road. Vehicles are barred beyond the Hine Road gate, and the public cannot go past the Water Treatment Plant. Dogs must be on a lead, and they are banned from the water collection area.
- Lower river and mouth: the East Harbour Regional Park car park is on the Coast Road, about 18 km south of Wainuiomata, with composting toilets. From there you can cross the bridge on foot and follow the river track south. Do not leave valuables in the car.
- Bus: buses run to Hine Road seven days a week, according to Greater Wellington.
- Licences: none of Fish & Game’s listed licence agents is in Wainuiomata. Buy online, or use an agent such as Hutt Valley Hunting and Fishing at 8 Te Puni Street, Petone.
Rules and Safety
Licence and rules
- Licence: a Fish & Game licence is required. Buy one from Fish & Game.
- Rule set: the Wellington region Anglers Notice sets the season, methods and daily and size limits. The Wainuiomata River is not named in the 2026 to 2027 brochure, so the default for unlisted waters applies. Read the Wellington regulations or ask Wellington Fish & Game if in doubt.
- Private land: you need the landowner’s permission before crossing it to reach the river. The Fish & Game Wellington access map shows known access points.
Safety
- Algae: LAWA says the river is not always safe for swimming and that toxic algae can occur in summer. Keep dogs and children away from slimy mats.
- The mouth: it opens and closes with rain. Do not try to cross it if the river is flowing into the sea, because waves can run up the beach into the river.
- Weather: check the forecast. The valley is open and exposed, and strong wind is common.
- After rain: check the Greater Wellington flow gauge before you drive out.
Useful Links
Fish & Game Wellington district: the district’s fishing notes, flies and access advice.
Wellington regulations 2026 to 2027: seasons, methods and limits for the region.
NZFishing.com Wainuiomata River: river character, tackle and fly suggestions.
The Wainuiomata River: Common Questions
Do I need a licence to fish the Wainuiomata River?
Yes, a Fish & Game licence. A Taupō licence from DOC is a separate licence and is not what you need here.
What fish are in the Wainuiomata River?
Brown trout, averaging about 1 kg. The upper reaches hold few fish, and the best water is the middle and lower river.
When is the Wainuiomata River trout season?
For waters not listed in the 2026 to 2027 Wellington regulations, the season is 1 October to 30 April. Check the brochure for any change.
Is the Wainuiomata River fly fishing only?
Not according to the 2026 to 2027 Wellington regulations, which allow fly, spinner and bait on unlisted waters. The river is still best known for sight fishing with nymphs and dry flies.
What flies work on the Wainuiomata River?
Small dark nymphs in roughly sizes 14 to 18, mayfly dry flies such as an Adams, and Cicada patterns in summer. At night, a bushy Molefly or deer-hair sedge.
Do I need permission to fish the river?
You need the landowner’s permission before crossing private land to reach it. Check the Fish & Game Wellington access map.
Is the Wainuiomata River safe to swim after fishing?
Not always. LAWA warns that toxic algae can occur in summer, so check the current warnings from Greater Wellington before swimming.
Is there a closer river with easier access?
The Te Awa Kairangi (Hutt) River is open all year under the Wellington regulations. Check its access points on the Fish & Game access map.
Spotted something incorrect on this page? Let us know.