New Zealand in March: Season, Two Islands, Great Walks, Gear

New Zealand in March rewards planning that is ordered correctly. Most people start with gear; the real constraint is which Great Walk you can get, and how you get to its ends.

The season

• March is early autumn. Days around 15–22 °C (59–72 °F); mountain nights 0–8 °C (32–46 °F). The South Island runs cooler, and Fjordland is wet year-round.
• Late March into early April cools further. Low trails stay walkable; exposed sections get windier and wetter.
• Daylight shortens — sunset around 19:00–19:30 by late March, so build retreat time into the day's biggest exposed section.
• Weather systems move fast: sun, rain, wind and a temperature drop inside one day. Read MetService forecasts and local warnings, not the season.

Choosing a 7–10 day plan

A — South Island only (best first trip). One Great Walk plus one or two day walks: Milford, Routeburn or Kepler. No domestic flight, simple logistics, high-quality walking. Cost: Milford and Routeburn need transport and booking, and the popular huts sell out months ahead.

B — South Island 6 days plus North Island 3. One South Island Great Walk, then the Tongariro Northern Circuit or the Alpine Crossing. Cost: a domestic flight and transfers eat half a day to a day; seven days is rushed, nine to ten is comfortable.

C — North Island only. Tongariro plus Abel Tasman at the top of the South Island, with day walks. Short transfers, good for families, but fewer Great Walk options and fast-changing volcanic weather.

Booking the Great Walks

• Official channels: the DOC Great Walks pages and DOC Booking.
• March is the tail of peak season, and the popular huts and campsites — Milford, Routeburn, Kepler — often fill months in advance.
• Check: whether your dates are open, hut and campsite availability, seasonal service dates, and whether the track is closed.
• Do not stop at "is there a bed". Check the transport and the weather window as well.

Transport

• Milford: usually a shuttle and boat from Te Anau. Driving to Milford still needs parking and boat time.
• Routeburn: start and finish differ, so a booked shuttle is mandatory.
• Kepler: a loop from Te Anau; the simplest logistics of the three.
• Tongariro: shuttles from Whakapapa and National Park; routes change with volcanic alert levels.

Weather and risk

• MetService for warnings, wind, rain and temperature drops. Mountain forecasts differ from town forecasts.
• Flooding: Fjordland and the west coast get enormous rainfall, and streams rise fast.
• Sandflies: fierce on the west coast and in Fjordland. Repellent, long sleeves and trousers.
• Hypothermia: still a March risk at night and in rain. You need a dry change.
• Avalanche: check the New Zealand Avalanche Advisory near the snowline. South Island alpine terrain can still be avalanche terrain in March.

Gear

Everyone: waterproof shell and trousers; pack cover or a dry bag liner; base layer plus fleece or light down, never cotton; broken-in waterproof boots and spare socks; headlamp and spare batteries; sun protection and sunglasses; sandfly repellent; personal first aid and medication; offline maps or GPX, and a power bank.

Hut nights: sleeping bag rated for 0–8 °C (32–46 °F) nights; a mat if the hut does not provide one; earplugs and camp shoes; a card or cash for the odd hut shop. No tent or stove if the hut has cooking facilities.

Tent nights: a wind-worthy tent, footprint, insulated mat and bag; stove and fuel where fires and stoves are permitted; food storage per local rules, and nothing scented in the tent.

Do not

• Cram two islands and two Great Walks into seven days.
• Set off without booked huts and transport.
• Read the season and skip the MetService warnings.
• Treat "March is stable" as "it will not rain".
• Leave the sandfly repellent and dry bags at home.