Byron Bay Weather in September

September is one of the excellent months to visit Byron Bay, with daytime temperatures of 23°C (73°F) and lows of 15°C (59°F) at night. It is also the driest month of the year.

Rainfall in Byron Bay in September

The month is known for having the least rain of the year. Make the most of the sunshine and clear skies. Expect around 8 days of rain based on historical data, with 51 mm (2 in) average. A fairly balanced picture this month, some wet days but nothing too extreme in terms of intensity.

Temperature in Byron Bay in September

Byron Bay in September has excellent weather. Days reach 23°C (73°F) and nights cool to 15°C (59°F). Overall, the month follows a fairly predictable daily temperature pattern. Nights drop to around 15°C (59°F), which is noticeably cooler than the daytime. A light jacket for the evening is a sensible addition, and the cool nights tend to make sleeping comfortable.

Sunshine in Byron Bay in September

The city usually sees around 240 hours of sunlight, indicating many sunny days , a great month for sightseeing.

Average water temperature in September

With water at 22°C (72°F), you can expect warm, pleasant conditions for any water activity. There's no adjustment period, it feels comfortable straight away.

If your ideal day consists of dry skies and pleasant temperatures, July, August, September and October typically offer the best circumstances for Byron Bay.