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Weather in September in Stewart Island

Considering a trip to Stewart Island this September and wondering about the expected weather conditions? Find all the crucial information you need right here, addressing your question:

What is the weather like in Stewart Island in September?

Stewart Island is a region in New Zealand. September in Stewart Island generally has mild temperatures, with high precipitation.

Temperatures

You can expect mild maximum daytime temperatures of around 12°C and nighttime temperatures around 7°C in Half-moon Bay. To learn more about the conditions in specific areas of Stewart Island in September, check out the map below.

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

Precipitation

September is a rainy month with an average rainfall of around 116 mm in Half-moon Bay.

Average sunshine

Half-moon Bay enjoys a balanced 142 hours of sunlight. Ensuring it's neither too overcast nor too sunny.

For a more detailed look at Stewart Island's conditions throughout the year, check out our Stewart Island climate page.

Where to go in Stewart Island in September

Find more information for the most popular destinations in the Stewart Island on the map below. Click on a destination dot for more details.

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Marker
Legend perfect weather pleasant tolerable unpleasant poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C and 29°C and not too much precipitation (less than 90 mm a month).

Select a Month of Interest

Check the conditions for any month of the year.

For a detailed overview over the year and the best time to visit New Zealand, check out our Stewart Island's climate page.

Popular destinations

What is the weather like in September for the most popular destinonation in Stewart Island?

Half-moon Bay

In September Half-moon Bay generally has moderate temperatures with maximum daytime temperatures around 12°C, minimum nighttime temperatures around 7°C and high monthly rainfall. So on average the conditions are poor that month.

Half-moon Bay
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   August August
<<  
11°C 
6°C 
125 hours 
97 mm 
24 days 
12°C 
7°C 
142 hours 
116 mm 
23 days 
poor 
October   >> October
>>  
13°C 
7°C 
176 hours 
134 mm 
24 days 
poor 
Climate in Half-moon Bay

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

Is September the best time to visit Stewart Island?

In our view, September might not be the best time to travel to Stewart Island with often poor weather in Half-moon Bay.

Generally speaking, January, February, March, April, August, November and December provide unpleasant 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.