Stewart Island in august: average Weather, Temperature and Climate
Weather in Stewart Island in august 2025
The weather in Stewart Island in the month of august comes from statistical datas on the past years. You can view the weather statistics for the whole month, but also by clicking on the tabs for the beginning, the middle and the end of the month.
Average weather throughout august
bad weather 16.9cm
Weather at 6am
43°F
Partly Cloudy
28% of time
23%
19%
18%
Weather at 12pm
50°F
Clear/Sunny
25% of time
24%
21%
19%
Weather at 6pm
49°F
Moderate rain at times
32% of time
27%
23%
12%
Weather at 3am
45°F
27%
25%
20%
16%
Evolution of daily average temperature and precipitation in Stewart Island in august
These charts show the evolution of average minimum/maximum temperatures as well as average daily precipitation volume in Stewart Island in august.
The climate of Stewart Island in august is bad
The climate in august in Stewart Island is wet (with 4.2in of precipitation over 7 days). This is better than the previous month since in july it receives an average of 5in of rainfall over 9 days.
The climate is quite cool there the month of august, but it is endurable by dressing hot. Temperatures are up to 52°F. The seasonal minimum is 43°F. Thus, the mean temperature average on this month of august in Stewart Island is 49°F. Note that seasonal normals in contrast with those observed in Stewart Island in the month of august with a maximum record of 61°F in 2012 and a minimum record of 31°F in 2016.
On average, in Stewart Island, the days of august last 10:07. Sunrise is at 08:50 and sunset is at 18:57.
With a bad climate, august is not the best time to go in that area in New Zealand.
August: another location in New Zealand?
If you want to go to New Zealand in august, there are destinations with better weather than Stewart Island:
In august, Cape Reinga, Omamari, Dargaville, Kaitaia, Kerikeri and Ruakaka have good weather.
Finally, Auckland, Rotorua, Wellington, Tauranga, Abel Tasman National Park and Castlepoint have a tolerable climate, but better than Stewart Island.
Seasonal average climate and temperature of Stewart Island in august
Check below seasonal norms These statistics are compiled from the weather statements of the past years of august.
| August | |||||
| Outside temperature | |||||
| Average temperature | 49°F | ||||
| Highest temperature | 52°F | ||||
| Lowest temperature | 43°F | ||||
| Highest record temperature | 61°F (2012) | ||||
| Lowest record temperature | 31°F (2016) | ||||
| Number of days at +65°F | 0 day(s) (0%) | ||||
| Number of days at -32°F | 1 day(s) (3%) | ||||
| Sea temperature | |||||
| Average sea temperature | 52°F | ||||
| Lowest sea temperature | 51°F | ||||
| Highest sea temperature | 53°F | ||||
| Wind | |||||
| Wind speed | 21km/h | ||||
| Wind temperature | 38°F | ||||
| Precipitation (rainfall) | |||||
| Rainfall | 4.2in | ||||
| Number of days with rainfall | 7 day(s) (24%) | ||||
| Record daily rainfall | 1.4in (2014) | ||||
| Snowfall | 16.9cm | ||||
| Other climate data | |||||
| Humidity | 87% | ||||
| Visibility | 9.08km | ||||
| Cloud cover | 52% | ||||
| UV index | 3 | ||||
| Daily sunshine hours | 8 | ||||
| Sunrise and sunset | |||||
| Time of sunrise | 08:50 | ||||
| Time of sunset | 18:57 | ||||
| Length of day | 10:07 | ||||
| Our opinion about the weather in august | |||||
| Our opinion at whereandwhen.net | bad | ||||
How was the weather last august?
Here is the day by day recorded weather in Stewart Island in august 2024:
32°F to 45°F
40°F to 47°F
34°F to 45°F
38°F to 50°F
40°F to 52°F
41°F to 54°F
40°F to 54°F
43°F to 49°F
40°F to 50°F
38°F to 52°F
47°F to 56°F
45°F to 50°F
40°F to 54°F
43°F to 58°F
50°F to 54°F
45°F to 49°F
43°F to 47°F
40°F to 45°F
38°F to 41°F
41°F to 49°F
47°F to 52°F
38°F to 54°F
43°F to 54°F
47°F to 54°F
41°F to 43°F
36°F to 52°F
38°F to 56°F
43°F to 58°F
49°F to 52°F
43°F to 52°F
47°F to 58°F
Map: other cities in New Zealand in august
Cities near Stewart Island:
| Invercargill in august | bad weather |
| The Catlins in august | bad weather |
| Gore in august | bad weather |
| Balclutha in august | very bad weather |
| Te Anau in august | very bad weather |
| Queenstown in august | very bad weather |
| Dunedin in august | bad weather |
| Otago Peninsula in august | bad weather |
| Milford Sound in august | very bad weather |
| Roys Peak in august | very bad weather |
| Wanaka in august | very bad weather |
| Saint Bathans in august | very bad weather |
Click over cities on the map for information about the weather in august.
Stewart Island
perfect weather
good
tolerable
bad
very bad
Weather data for Stewart Island in august:
Weather data for Stewart Island for august are derived from an average of the weather forecast since 2009 in Stewart Island. There is a margin of error and these forecasts are to be considered as general information only. The weather in Stewart Island can vary slightly from year to year, but this data should limit surprises. So you can pack your bags or check for the best time in year to go to Stewart Island.