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New ZealandThe weather in September in Nelson
It's cool to moderate in September in Nelson with an average temperature of 15°C. Temperatures this month range from a low of 14°C to a high of 18°C. At night, you can expect temperatures between 4°C and 9°C.
Looking for sun and warm weather? September isn’t a good month to be in Nelson. 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 Nelson, 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 28°C in 2023, Nelson reached the highest temperature in September over the past 10 years. The lowest daytime temperature in this month was 9°C in 2015. The extreme nighttime temperatures ranged from a lowest recorded value of -6°C to a highest value of 14°C.
Rainfall amount
In September, there is an average of 72 mm of precipitation, spread over 10 days. The wind speed is around 4 Bft, mostly coming from the South.
Daily weather in September for Nelson
Click on any day in September to get detailed info about the usual weather on that day in Nelson. Check out the historical temperatures and precipitation over the past 10 years on this day.
September weather comparison
| Nelson | New York | |
|---|---|---|
| Average temperature | 15°C | 27°C |
| Max. temperature | 18°C | 31°C |
| Min. temperature | 4°C | -5°C |
| Total precipitation | 72 mm | 57 mm |
| Rainy days | 10 days | 9 days |
Start of September
The month of September starts in Nelson with cool temps, averaging around 15°C during the day and nights around 6°C.
Mid September
By mid-September, daytime temps rise to around 16°C, with nights around 7°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 Nelson is around 17°C, while nighttime temps are about 8°C. A shower might pop up, but overall, the weather will be dry and sunny.
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UV index
The UV index is a maximum of 7 this month. That's a moderate to high value on the intensity scale of 1 to 11. Unprotected skin can burn within 15-25 minutes.
Check out the climate of Nelson for all months and discover the best travel time
Temperature charts
These charts show the average temperatures in September in Nelson, 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 Nelson
Temperature in September in Nelson over the years
Precipitation charts
These charts show the average amount of precipitation in September in Nelson, 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 Nelson
Total precipitation in September in Nelson over the years
Daily UV index in September in Nelson
This chart shows the average daily UV index in September in Nelson, 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 Nelson
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Average weather in Nelson by month
Click on a month below to see detailed weather info for Nelson. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.