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AustraliaThe weather in September in Byron Bay
It's warm in September in Byron Bay with an average temperature of 23°C. Temperatures this month range from a low of 22°C to a high of 24°C. At night, you can expect temperatures between 12°C and 16°C.
Looking for great weather? September is a good time to be in Byron Bay. The temperatures are nice, and there’s not too much rain.
Average temperatures and precipitation
This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in September for Byron Bay, Australia. 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 35°C in 2017, Byron Bay reached the highest temperature in September over the past 10 years. The lowest daytime temperature in this month was 15°C in 2022. The extreme nighttime temperatures ranged from a lowest recorded value of 5°C to a highest value of 21°C.
Water temperature
The water temperature at Byron Bay is 23°C this month. Comfortable for a swim.
Rainfall amount
In September, there is an average of 52 mm of precipitation, spread over 8 days. The wind speed is around 5 Bft, mostly coming from the South.
Daily weather in September for Byron Bay
Click on any day in September to get detailed info about the usual weather on that day in Byron Bay. Check out the historical temperatures and precipitation over the past 10 years on this day.
September weather comparison
| Byron Bay | New York | |
|---|---|---|
| Average temperature | 23°C | 27°C |
| Max. temperature | 24°C | 31°C |
| Min. temperature | 12°C | -5°C |
| Total precipitation | 52 mm | 57 mm |
| Rainy days | 8 days | 9 days |
Start of September
The month of September starts in Byron Bay with warm temps, averaging around 23°C during the day and nights around 14°C.
Mid September
By mid-September, daytime temps rise to around 24°C, with nights around 14°C. Not much precipitation expected during this period. It’s mostly dry and sunny.
End of September
By the end of September, the average daytime temperature in Byron Bay is around 24°C, while nighttime temps are about 16°C. A shower might pop up, but overall, the weather will be dry and sunny.
Find affordable trips to Byron Bay
UV index
The UV index is a maximum of 9 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 Byron Bay for all months and discover the best travel time
Curious about the weather in other parts of Australia? Check out the climate and weather for spots like Sydney, Gold Coast, Melbourne, or explore other destinations in Australia.
Temperature charts
These charts show the average temperatures in September in Byron Bay, Australia. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Daily Temperature in September in Byron Bay
Temperature in September in Byron Bay over the years
Precipitation charts
These charts show the average amount of precipitation in September in Byron Bay, Australia. 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 Byron Bay
Total precipitation in September in Byron Bay over the years
Daily UV index in September in Byron Bay
This chart shows the average daily UV index in September in Byron Bay, 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 Byron Bay
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Average weather in Byron Bay by month
Click on a month below to see detailed weather info for Byron Bay. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.