Codfish Island

Island New Zealand island sanctuary renowned for kākāpō conservation

Codfish Island (Whenua Hou) off New Zealand’s South Island is a predator‑free nature reserve central to kākāpō and seabird conservation; visiting requires permits and often focuses on guided wildlife observation and habitat recovery.

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Codfish Island, also known by its Māori name Whenua Hou, is an offshore island reserve to the west of Stewart Island/Rakiura in New Zealand, managed for native wildlife conservation. The island is best known as a predator-free sanctuary where translocations and intensive management support threatened species recovery.

The island is managed as a strict nature reserve with active programmes for species such as the kākāpō and other native birds; human access is restricted and visits are typically by permit only to limit disturbance. There are no commercial tourism services on the island and access is by private boat or chartered aircraft under supervision.

The island lies close to Stewart Island/Rakiura in New Zealand’s far south and is part of the network of islands used for conservation translocations and long-term ecological monitoring.

  • Restricted access: access is tightly controlled - landing and visits normally require permits because the island is managed as a nature reserve to protect endangered species.
  • Kākāpō sanctuary: one of New Zealand's important offshore sanctuaries for the critically endangered kākāpō and other native birds, with intensive conservation work and monitoring.
Codfish Island
Codfish Island / Whenua Hou, off the west coast of Stewart Island/Rakiura, New Zealand
-46.7833, 167.6333
Access regulated; landing by permit only - fees and rules apply via Department of Conservation (New Zealand)

How to Get to Codfish Island #

Access only by authorized boat or helicopter from Stewart Island/Rakiura; trips are organized through approved DOC operators and are subject to weather and permit restrictions.

Tips for Visiting Codfish Island #

  • Codfish Island (Whenua Hou) is predator-free and visitor numbers are strictly limited-book well in advance through New Zealand conservation tour operators.
  • Respect biosecurity protocols: remove soil from boots and do not bring food or pets.
  • Bring a good camera and a telephoto lens: the island is one of the best places to see nesting kākāpō from a distance.

Best Time to Visit Codfish Island #

Visit only as part of an approved conservation trip; timing is controlled by breeding and predator-control schedules.

Breeding season (varies)
Breeding occurs irregularly depending on rimu fruiting; check DOC notices · 10-18°C (50-64°F) typical in warmer months
Visits are organized around conservation needs - the island is closed except for permitted conservation visits and approved tours.
Summer (Dec-Feb)
Dec-Feb · 12-18°C (54-64°F)
Easier sea access and longer daylight; still subject to strict permit rules and closures.

Weather & Climate near Codfish Island #

Climate

Codfish Island's climate is classified as Oceanic - Oceanic climate with cool summers (peaking in February) and cold winters (coldest in July). Temperatures range from 4°C to 16°C. Abundant rainfall (1393 mm/year), wettest in May.

Temperature & Rainfall
Temperature Range
16°
Warmest Month
Coldest Month
Monthly Conditions

January

January is cool with highs of 16°C and lows of 10°C. Significant rainfall (121 mm) and breezy conditions.

Comfort

13°
Feels Like Cool
13°C
Temperature
10° 16°

Weather

121 mm
Rainfall
8.0 m/s
Wind
Breezy

February

February is cool with highs of 16°C and lows of 10°C. Regular rainfall (80 mm) and breezy conditions.

Comfort

13°
Feels Like Cool
13°C
Temperature
10° 16°

Weather

80 mm
Rainfall
7.1 m/s
Wind
Breezy

March

March is cool with highs of 15°C and lows of 9°C. Significant rainfall (127 mm) and breezy conditions.

Comfort

12°
Feels Like Cool
12°C
Temperature
15°

Weather

127 mm
Rainfall
7.0 m/s
Wind
Breezy

April

April is cool with highs of 13°C and lows of 8°C. Significant rainfall (130 mm) and breezy conditions.

Comfort

11°
Feels Like Cool
11°C
Temperature
13°

Weather

130 mm
Rainfall
6.4 m/s
Wind
Breezy

May

May is cold with highs of 12°C and lows of 6°C. The wettest month with heavy rain (157 mm) and breezy conditions.

Comfort

Feels Like Cold
C
Temperature
12°

Weather

157 mm
Rainfall
7.7 m/s
Wind
Breezy

June

June is cold with highs of 10°C and lows of 5°C. Significant rainfall (144 mm) and breezy conditions.

Comfort

Feels Like Cold
C
Temperature
10°

Weather

144 mm
Rainfall
7.4 m/s
Wind
Breezy

July

July is the coolest month with highs of 10°C and lows of 4°C. Significant rainfall (123 mm) and breezy conditions.

Comfort

Feels Like Cold
C
Temperature
10°

Weather

123 mm
Rainfall
7.4 m/s
Wind
Breezy

August

August is cold with highs of 10°C and lows of 5°C. Regular rainfall (84 mm) and breezy conditions.

Comfort

Feels Like Cold
C
Temperature
10°

Weather

84 mm
Rainfall
6.4 m/s
Wind
Breezy

September

September is cold with highs of 11°C and lows of 6°C. Significant rainfall (102 mm) and breezy conditions.

Comfort

Feels Like Cold
C
Temperature
11°

Weather

102 mm
Rainfall
7.4 m/s
Wind
Breezy

October

October is cold with highs of 12°C and lows of 7°C. Significant rainfall (111 mm) and breezy conditions.

Comfort

Feels Like Cold
C
Temperature
12°

Weather

111 mm
Rainfall
8.0 m/s
Wind
Breezy

November

November is cool with highs of 14°C and lows of 7°C. Significant rainfall (111 mm) and breezy conditions.

Comfort

10°
Feels Like Cool
10°C
Temperature
14°

Weather

111 mm
Rainfall
8.3 m/s
Wind
Breezy

December

December is cool with highs of 15°C and lows of 9°C. Significant rainfall (103 mm) and breezy conditions.

Comfort

12°
Feels Like Cool
12°C
Temperature
15°

Weather

103 mm
Rainfall
7.1 m/s
Wind
Breezy

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