Sydney weather in September
Sydney in September averages 17°C (62°F), 57 mm of rain and 8 hours of sun a day.
Of the twelve months in Sydney, September is the fifth coldest and the second driest.
- Average temp
- 17°C (62°F)
12–22°C · 53–71°F
- Rainfall
- 57 mm
Showers likely
- Sunshine
- 8 h
hours per day
What is Sydney like in September?
Daytime
Days are mild.
Rain
Some rain is likely; pack for showers.
Evening
Evenings are cooler. A layer helps after sunset.
What should I pack for Sydney in September?
High-factor sun cream
With 8 hours of sun a day, burn time is short even in shade.
Sunglasses and a brimmed hat
Midday glare is the part people underpack for, not the heat itself.
A light rain jacket
About 57 mm falls this month — showers rather than washouts.
A warm mid-layer
Nights drop to around 12°C (53°F).
September compared with August and October
September in Sydney is 2.6°C warmer than August and about as wet as it, which averages 14°C (58°F).
September in Sydney is 2.2°C cooler than October and about as wet as it, which averages 19°C (66°F).
Daylight in Sydney in September
On 15 September the sun is up for 11 hours 52 minutes in Sydney, rising about 05:54 and setting about 17:46 local time.
September ends 1 hour longer than it begins, so the last week of the month is a different length of day from the first.
That is 2 hours 32 minutes short of December, the longest-lit month here.
Where to stay in Sydney
Dates are a starting point for September.
Travel guides for Sydney
What to read before you book.
Sydney weather by month
TemperatureRainfall
How September compares with the rest of the year
September is highlighted. Every other month links to its own page.
| Month | Average | Rainfall |
|---|---|---|
| January | 24°C / 75°F | 80 mm |
| February | 24°C / 74°F | 116 mm |
| March | 22°C / 72°F | 90 mm |
| April | 19°C / 67°F | 95 mm |
| May | 16°C / 62°F | 89 mm |
| June | 14°C / 57°F | 121 mm |
| July | 13°C / 56°F | 70 mm |
| August | 14°C / 58°F | 63 mm |
| September | 17°C / 62°F | 57 mm |
| October | 19°C / 66°F | 55 mm |
| November | 21°C / 69°F | 71 mm |
| December | 22°C / 72°F | 68 mm |
Check another month
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FAQs about Sydney in September
September climate averages for Sydney, 1991–2020.
Sydney averages 17°C (62°F) in September, ranging from about 12°C (53°F) at night to 22°C (71°F) in the afternoon. That is a 1991–2020 average, so an individual week can run either side of it.
Some. About 57 mm falls across September, enough to need a light jacket but not enough to reshape a trip.
No. September averages 17°C (62°F) against 19°C (66°F) in October — 2.2°C cooler.
September is 2.6°C warmer than August, and about as wet.
It is outside the easiest window. The most comfortable stretch here is October to January; September sits outside it, which usually means more heat, more rain, or both — worth it if you would rather have the place to yourself.
About 8 hours of sun a day on the 1991–2020 average — among the brighter months anywhere.
This page does not show today's weather. It is a 1991–2020 climate normal from Meteostat — a long-run average of what September is usually like, which is what you want when booking months ahead. For today or the coming week, check a live forecast.
About 11 hours 52 minutes of daylight in mid-September, against 14 hours 24 minutes in December and 9 hours 55 minutes in June.
On 15 September, sunrise is about 05:54 and sunset about 17:46 local time. Both shift across the month — the month ends 1 hour longer than it starts.
