The weather in September in New Zealand
It's cool to moderate in September in New Zealand with an average temperature of 17°C. Temperatures this month range from a low of 15°C to a high of 18°C. At night, you can expect temperatures between 9°C and 13°C.
Looking for sun and warm weather? September isn’t a good month to be in New Zealand. The temperatures are too low for a warm stay this month.
Average temperatures and precipitation
This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in September for New Zealand. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.
Temperature records
With 23°C in 2023, New Zealand reached the highest temperature in September over the past 10 years. The lowest daytime temperature in this month was 10°C in 2016. The extreme nighttime temperatures ranged from a lowest recorded value of 4°C to a highest value of 16°C.
Rainfall amount
In September, there is an average of 108 mm of precipitation, spread over 13 days. The wind speed is around 5 Bft, mostly coming from the South.
Daily weather in September for New Zealand
Click on any day in September to get detailed info about the usual weather on that day in New Zealand. Check out the historical temperatures and precipitation over the past 10 years on this day.
September weather comparison
| New Zealand | New York | |
|---|---|---|
| Average temperature | 17°C | 27°C |
| Max. temperature | 18°C | 31°C |
| Min. temperature | 9°C | -5°C |
| Total precipitation | 108 mm | 57 mm |
| Rainy days | 13 days | 9 days |
Start of September
The month of September starts in New Zealand with cool temps, averaging around 17°C during the day and nights around 10°C.
Mid September
By mid-September, daytime temps stay steady at around 17°C, with nights around 11°C. There’s a chance of some showers during this time, but plenty of dry and sunny days too.
End of September
By the end of September, the average daytime temperature in New Zealand is around 18°C, while nighttime temps are about 12°C. Expect regular precipitation, but if you’re lucky, you’ll also get some dry and sunny days.
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UV index
The UV index is a maximum of 8 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.
Check out the climate of New Zealand for all months and discover the best travel time
The climate in New Zealand is based on weather data from Auckland. Other spots might have different weather. You can check out all destinations in New Zealand to get the full picture of the climate.
Temperature charts
These charts show the average temperatures in September in New Zealand. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Daily Temperature in September in New Zealand
Temperature in September in New Zealand over the years
Precipitation charts
These charts show the average amount of precipitation in September in New Zealand. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.
Daily Precipitation in September in New Zealand
Total precipitation in September in New Zealand over the years
Daily UV index in September in New Zealand
This chart shows the average daily UV index in September in New Zealand, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Weather experiences in September in New Zealand
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Average weather in New Zealand by month
Click on a month below to see detailed weather info for New Zealand. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.