Stewart Island weather in August
Cold, with regular rainfall. Average highs of 9°C and lows of 4°C, with around 17 rainy days expected throughout the month.
While August isn't our top-rated month for Stewart Island, it has its own appeal — typically lower prices, fewer crowds, and a more local feel.
Average high
9°C
Average low
4°C
Rainy days
17 days
Best months to visit
Year-round
What to do in Stewart Island in August
Whatever the weather, Stewart Island rewards curious visitors. Here are some of the best ways to spend your time:
Spot kiwi birds in their habitat
Hike the Rakiura Track
Kayak pristine bays
Fish for blue cod
Watch humpbacks migrate
Experience the Southern Lights
What to pack for August
Pack for cold weather — a proper winter coat, thermal layers, waterproof boots, and warm accessories. You'll want a good base layer for outdoor activities.
Browse other months
January
16C
Cool, with regular rainfall.
February
16C
Cool, with regular rainfall.
March
15C
Cool, with regular rainfall.
April
13C
Cool, with regular rainfall.
May
11C
Cool, with frequent heavy rain.
June
9C
Cold, with regular rainfall.
July
9C
Cold, with regular rainfall.
August (you are here)
9C
Cold, with regular rainfall.
September
11C
Cool, with regular rainfall.
October
12C
Cool, with frequent heavy rain.
November
14C
Cool, with regular rainfall.
December
15C
Cool, with regular rainfall.
Book your August trip to Stewart Island
Find hotels, tours and experiences for the perfect escape.
