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Gear Guide

Best Rain Jacket for the Great Walks: Staying Dry in Fiordland

7 min read · Published 2026-10-06

Picks checked on Amazon on 6 October 2026, for the 2026/27 Great Walks season.

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Quick answer: you need a fully waterproof jacket with taped seams and a proper hood, not a soft-shell or a "water-resistant" windbreaker. The Outdoor Research Foray 3L is our pick because its full-length side zips let you dump heat on the climbs without taking it off. On a budget, the Marmot PreCip Eco does the job.

Why the rain jacket is the most important thing you buy

Fiordland is one of the wettest places on earth. Milford Sound measures its rain in metres per year, and when it rains on the Milford, Routeburn or Kepler it often rains for a day straight. The waterfalls you came to see are the result. A good shell keeps you warm as well as dry: wet clothing in wind on Mackinnon Pass or the Luxmore ridge is how hypothermia starts, even in summer. New Zealand's Mountain Safety Council and DOC both list a waterproof jacket as essential for any multi-day walk.

The picks

Best overall

Outdoor Research Foray 3L Rain Jacket

A three-layer waterproof breathable shell, which is more durable and breathes better than budget two-and-a-half-layer jackets. Its signature feature is long side zips that open from hem to arm, so you can vent on climbs without letting rain in from above.

  • Three-layer construction lasts for years of pack straps
  • Side zips for venting on long climbs
  • Adjustable hood that stays put in wind

Skip it if: you only walk in fine weather. It is overkill for a sunny Abel Tasman trip.

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Best on a budget

Marmot PreCip Eco Rain Jacket

The PreCip has been the default affordable rain jacket for decades. Fully waterproof, light and packable, with pit zips. It will not last as many seasons as a three-layer shell, but it keeps you dry on a Great Walk.

  • Fully seam-taped and waterproof
  • Pit zips for ventilation
  • Packs small into its own pocket

Skip it if: you walk regularly in heavy rain. Spend more and buy once.

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Don't forget the rest of your rain kit

  • Rain trousers. Without them, water runs off your jacket into your boots.
  • A pack liner. Rain covers leak at the back. See our backpack guide for the dry bag we use.
  • Warm layers that work wet. Merino and synthetic, never cotton. See the clothing guide.

More Great Walks gear guides

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