- 1This is a calendar of what usually happens in Fiordland through the year, taken from DOC pages. It is not today's conditions: DOC says to view the Fiordland alerts for current conditions and track updates before your trip.
- 2DOC's 2026/27 Great Walks season runs from 27 October 2026 on the Kepler Track and from 1 November 2026 on the Milford and Routeburn tracks, to 30 April 2027. Outside it, DOC says the tracks are for fit, experienced, well equipped people.
- 3Winter and spring are avalanche time, but DOC pages give different windows, from May to November in general to into December on the track pages. We show each by source.
- 4For wildlife, DOC says the tawaki breeding season, July to November, is the time to see them, and the Homer Tunnel area shows alpine flowers in summer once the snow has cleared.
01 / Start with the short answer
This is a calendar of what usually happens, not today's conditions
Use this page to plan the season. Before you set out, check DOC's Fiordland alerts, your track's DOC page and the NZTA road status.
Everything on this page describes what DOC pages say usually happens in each part of the year. None of it is a reading, a forecast or a road report, and this page carries no live readings. DOC says Fiordland weather is highly changeable: cold, snow, strong winds and heavy rain can occur at any time of year. So before any trip, do three things. View DOC's Fiordland alerts for current conditions and track updates, and check with the DOC Visitor Centre, as DOC advises. Read the DOC page for the track you plan to walk. Check the latest Milford Road status before you leave: DOC says roadside signs at Te Anau, Knobs Flat and Milford Sound also give current road updates, and Visit Fiordland points drivers to the NZTA road status. The links are in the questions at the end of this guide.
02 / Month by month
What happens in each part of the year?
Summer is the Great Walks season and flower time; autumn closes the season; winter brings snow, short days and the hardest road; spring brings snowmelt, peak avalanche risk and the tawaki breeding season.
| Months | Tracks and road (by source) | Nature (by source) |
|---|---|---|
| December to February (summer) | Great Walks season on the Milford, Routeburn and Kepler tracks (DOC). DOC track pages say avalanche risk can extend into December. DOC says the Kepler Track will be busy with runners on the first Saturday in December, when the Kepler Challenge is held. | Native flowers, including alpine buttercups (called Mount Cook lilies) and daisies, around the Homer Tunnel once the snow has cleared (DOC). Tawaki can sometimes be seen in the moult, mid-January to early March (DOC). |
| March and April (autumn) | The Great Walks season ends on 30 April 2027; the last Milford Track departure is 28 April 2027 (DOC). The Milford Journey stays busy until April (DOC). | The tawaki moult ends in early March (DOC). Leopard seals sometimes visit New Zealand in autumn and winter (DOC, New Zealand wide, not Fiordland specific). |
| May and early June | Outside the Great Walks season. DOC says May to early June (King's Birthday weekend) on the Milford Track is unmanaged, more difficult and carries higher flood risk; cold, snow, strong winds and heavy rain are more common in May and June. DOC's Routeburn winter season starts in May. | DOC says avalanches usually occur in Fiordland National Park from May to November. |
| June to August (winter) | DOC says winter on the Milford Road (May to September) can be extremely challenging and to expect closures and delays from snow and avalanche in winter. DOC says snow chains may be required and can be rented in Te Anau. | DOC says daylight is limited and alpine areas are usually covered in snow. The tawaki breeding season starts in July (DOC). When snow cover is heavy, takahē move to the forest (DOC, which gives no months). The kōtuku occasionally winters over at Martins Bay (DOC). |
| September to November (spring) | DOC says spring snowmelt makes Milford Track rivers rise even faster, and mid-September to late October (Labour weekend) brings higher avalanche risk and unbridged streams. The Kepler season opens on 27 October 2026 and the Milford and Routeburn seasons on 1 November 2026 (DOC). | The tawaki breeding season runs to November (DOC). Seals and tawaki can be seen around the coast near Long Reef on the Hollyford Track from July to November (DOC). Each spring, whitebait begin their migration up the Hollyford River (DOC). |
03 / Wildlife through the year
When can I see Fiordland wildlife?
DOC gives clear seasons for tawaki; for most other animals it gives behaviour or places rather than months.
Only what DOC states is here. Where DOC names no months, we say so rather than guess.
- Tawaki (Fiordland crested penguin).
DOC says the breeding season, July to November, is the best time to see tawaki, and they can sometimes be seen during the moult from mid-January to early March. They are timid, so give them space.
- Seals on the Hollyford coast.
DOC says that from July to November seals and tawaki can be seen around the coast near Long Reef on the Hollyford Track.
- Kekeno (New Zealand fur seals).
DOC says kekeno are New Zealand's most common seals and their population is growing. The DOC seal pages we checked give no Fiordland breeding months.
- Leopard seals.
DOC says they live mainly in the Antarctic pack ice, but in autumn and winter some disperse north and sometimes visit New Zealand. DOC does not name Fiordland.
- Bottlenose dolphins.
DOC says calving peaks for most populations between spring and summer or autumn, but gives no calving season for Fiordland.
- Takahē.
DOC says wild takahē live in native grasslands, and when snow cover is heavy they move to the forest and feed on fern rhizomes. DOC gives no months for this.
- Kea.
DOC lists places to see kea, including the Homer Tunnel area and the Milford, Routeburn and Kepler tracks, but its kea page gives no season.
- Birds and fish of the Hollyford.
DOC says the kōtuku, or white heron, occasionally winters over at Martins Bay, and each spring young native fish (whitebait) migrate up the Hollyford River.
04 / Avalanche season by source
When is avalanche season?
DOC pages disagree on the window: May to November, mainly late August to early November, track by track from May to late October or early November, or into December.
| DOC page | Window it gives | Applies to |
|---|---|---|
| Know before you go | Avalanches usually occur from May to November | Fiordland National Park |
| Weather and climate in Fiordland | Mainly over winter and spring, especially between late August and early November | Fiordland |
| Be avalanche alert in Fiordland | May to late October on the Milford Track, May to early November on the Routeburn, May to late October on the Kepler | The three Great Walks |
| Milford, Routeburn and Kepler track pages | The risk can extend into December; in the Great Walks season DOC manages it and may close sections | Each track |
| Milford Track page, before the season | Mid-September to late October brings higher avalanche risk | The Milford Track |
05 / The Great Walks year
When are the Great Walks open, and what changes outside the season?
DOC runs the 2026/27 season from late October or 1 November to 30 April 2027. Outside it, the tracks are for experienced, well equipped people only.
DOC gives the 2026/27 Great Walks season as 27 October 2026 to 30 April 2027 on the Kepler Track, and 1 November 2026 to 30 April 2027 on the Routeburn and Milford tracks, with the last Milford Track departure on 28 April 2027. These dated seasons are rechecked against DOC before they lapse. Outside the season, DOC says the Milford and Kepler tracks should only be attempted by fit, experienced, well equipped people with alpine, river crossing and navigation skills. DOC calls May to late October the Routeburn winter season, when special skills and preparation are needed, facilities are greatly reduced and there is more risk from snow, ice, avalanche terrain and sub-zero temperatures. On the Milford Track, many side stream bridges are removed over winter to avoid avalanche damage. Even in season, DOC says snow and ice can make the Conical Hill side trip on the Routeburn hazardous early and late in the season. The exception is the Hollyford Track: DOC says it has no alpine sections, is rarely cut off by snow and can be walked in any season, depending on the weather.
06 / The road and the weather
How does the Milford Road change through the year?
Summer is busy; winter is quieter but can be extremely challenging, with chains, avalanche closures and ice.
DOC says the Milford Journey is busiest in summer, between October and April, and that traffic and parking are often busiest between 9.30 am and 1.30 pm. Visit Fiordland says State Highway 94 is the only road access to Milford Sound. In winter, DOC says conditions on the road (May to September) can be extremely challenging; if you are not confident, take a coach. Traffic is lower in winter, so DOC advises leaving from 9 am onwards. DOC says snow chains may be required, can be rented in Te Anau, and you should know how to fit them before you start. DOC's Milford area page says to expect road closures and traffic delays because of weather, rock falls, and snow and avalanche in winter. For the weather, DOC says Fiordland summer days are typically between 10 and 18 degrees Celsius, and winter (May to November) between 1 and 9 degrees in a July example. Visit Fiordland says spring (September to November) can bring higher rainfall and even snow to sea level, and that heavy rain, ice, snow, fog, wind or debris can be on the road at any time of year.
07 / Before you go
How do I turn this calendar into a safe plan?
Pick your season from the calendar, then check the live sources on the day.
- 01Choose your season.
Use the table above to see what DOC says usually happens in the months you are travelling.
- 02Check the alerts.
View DOC's Fiordland alerts for current conditions and track updates, and check with the DOC Visitor Centre before your trip.
- 03Read your track page.
Each DOC track page carries its season, hazards and winter information; DOC points walkers to the New Zealand Avalanche Advisory from the Mountain Safety Council.
- 04Check the road.
Check the latest Milford Road status before you leave; DOC says the roadside signs at Te Anau, Knobs Flat and Milford Sound give current road updates.
- 05Plan for a wet day.
DOC advises planning for all conditions on a Fiordland trip, including at least one wet day.
