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New ZealandThe weather in September in Hamilton
It's cool to moderate in September in Hamilton with an average temperature of 16°C. Temperatures this month range from a low of 15°C to a high of 18°C. At night, you can expect temperatures between 6°C and 11°C.
Looking for sun and warm weather? September isn’t a good month to be in Hamilton. 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 Hamilton, 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, Hamilton reached the highest temperature in September over the past 10 years. The lowest daytime temperature in this month was 10°C in 2017. The extreme nighttime temperatures ranged from a lowest recorded value of -1°C to a highest value of 15°C.
Rainfall amount
In September, there is an average of 111 mm of precipitation, spread over 14 days. The wind speed is around 5 Bft, mostly coming from the South.
Daily weather in September for Hamilton
Click on any day in September to get detailed info about the usual weather on that day in Hamilton. Check out the historical temperatures and precipitation over the past 10 years on this day.
September weather comparison
| Hamilton | New York | |
|---|---|---|
| Average temperature | 16°C | 27°C |
| Max. temperature | 18°C | 31°C |
| Min. temperature | 6°C | -5°C |
| Total precipitation | 111 mm | 57 mm |
| Rainy days | 14 days | 9 days |
Start of September
The month of September starts in Hamilton with cool temps, averaging around 16°C during the day and nights around 9°C.
Mid September
By mid-September, daytime temps rise to around 17°C, with nights around 9°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 Hamilton is around 17°C, while nighttime temps are about 10°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 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 Hamilton for all months and discover the best travel time
Temperature charts
These charts show the average temperatures in September in Hamilton, 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 Hamilton
Temperature in September in Hamilton over the years
Precipitation charts
These charts show the average amount of precipitation in September in Hamilton, 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 Hamilton
Total precipitation in September in Hamilton over the years
Daily UV index in September in Hamilton
This chart shows the average daily UV index in September in Hamilton, 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 Hamilton
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Average weather in Hamilton by month
Click on a month below to see detailed weather info for Hamilton. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.