Stewart Island Weather in July

Average temperatures, rainfall, sunshine and the best places to visit in Stewart Island, New Zealand in July.

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Half-moon Bay

Are you planning a trip a to Stewart Island, New Zealand in July and wondering what kind of weather to expect? This page has all the details you need.

What to Expect in Stewart Island in July

Stewart Island, New Zealand is a region in New Zealand. July in Stewart Island generally has cold temperatures, with moderate precipitation.

Temperatures

You can expect cold maximum daytime temperatures of around 10°C (50°F) and nighttime temperatures around 5°C (41°F) in Half-moon Bay. Typically, it's the chilliest month of the year. Making it a great time for staying indoors and enjoying the warmth. Make sure you're prepared by packing the right winter outfits.

To explore the conditions in Stewart Island, New Zealand in more detail, check the map below.

Precipitation

July is a moderate rainy month with an average rainfall of around 96 mm (3.8 in) in Half-moon Bay. Going by our weather data, this month in Half-moon Bay usually has the least rain, making it the driest month of the year.

Average sunshine

Sunshine hours are generally lower in most areas during July. Half-moon Bay experiences about 99 hours of sunlight. If you're looking for brighter destinations, our weather planner can suggest better options.

Explore Stewart Island by month

Pick a month to see the average temperature, rainfall and sunshine in Stewart Island - and find the best time to visit. (based on Half-moon Bay)

January17°C (63°F) February17°C (63°F) March16°C (61°F) April15°C (59°F) May13°C (55°F) June11°C (52°F) This monthJuly10°C (50°F) August11°C (52°F) September12°C (54°F) October13°C (55°F) November15°C (59°F) December16°C (61°F)
Best Time to Visit Stewart Island →

Best Places to Visit in Stewart Island in July

Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across Stewart Island.

Conditions Temperatures Precipitation
perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

Popular Destinations in Stewart Island

What is the weather like in July for the most popular destinonation in Stewart Island, New Zealand?

Half-moon Bay

In July Half-moon Bay generally has low temperatures with maximum daytime temperatures around 10°C (50°F), minimum nighttime temperatures around 5°C (41°F) and moderate monthly rainfall. So on average the conditions are less favorable that month.

« June
July
August »
June
July
August
Max temperature
11°C (52°F)
10°C (50°F)
11°C (52°F)
Min temperature
6°C (43°F)
5°C (41°F)
6°C (43°F)
Monthly sun hours
77 hours
99 hours
125 hours
Monthly rainfall
102 mm (4 in)
96 mm (3.8 in)
97 mm (3.8 in)
Monthly rainy days
25 days
26 days
24 days
Weather conditions
less favorable
less favorable
mixed
Climate in Half-moon Bay →

Is your destination not in the list? Have a look at all destinations in Stewart Island, in New Zealand.

In our records: New Zealand July extremes

Notable July records observed across cities in New Zealand in our climate database (1976 – 2026). Historic readings can vary in quality, so treat these as illustrative.

  • In our records, the warmest July day in New Zealand reached 37°C (99°F) in Russell on July 26, 2020.

Stewart Island weather in July: frequently asked questions

What is the weather like in Stewart Island, New Zealand in July?

Stewart Island, New Zealand typically experiences less favorable weather in July, part of the season. Daytime highs in Half-moon Bay average around 10°C (50°F), and temperatures drop to about 5°C (41°F) at night.

What is the average temperature in Stewart Island, New Zealand in July?

Half-moon Bay averages a daytime maximum of 10°C (50°F) in July, with overnight lows close to 5°C (41°F).

Does Stewart Island, New Zealand get a lot of rain in July?

July is on the drier side in Stewart Island, New Zealand. Half-moon Bay averages only about 96 mm (3.8 in), with most days staying dry.

Is July a Good Time to Visit Stewart Island, New Zealand?

In our view, July might not be the best time to travel to Stewart Island, New Zealand with often less favorable weather in Half-moon Bay.

On average, the best time to visit Stewart Island, New Zealand is in January, February, March, April, August, November and December with generally mixed weather in Half-moon Bay.

Interested in more climate information?

We have much more information about the climate in Stewart Island.

Weather and climate has detailed information for every country in the world. Are you going to New Zealand? Get detailed historical weather averages for many cities in New Zealand.

Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.

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