Australia (Sydney) · September
Low seasonAustralia · Oceania
Climate Overview
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Ø day, range from coolest to warmest dayØ dayrange | 28° (82°)21– (70–)39 (102) | 27° (81°)21– (70–)35 (95) | 26° (79°)20– (68–)33 (91) | 24° (75°)18– (64–)29 (84) | 21° (70°)15– (59–)26 (79) | 18° (64°)13– (55–)22 (72) | 18° (64°)13– (55–)24 (75) | 19° (66°)14– (57–)26 (79) | 22° (72°)14– (57–)31 (88) | 24° (75°)16– (61–)34 (93) | 25° (77°)17– (63–)35 (95) | 27° (81°)19– (66–)35 (95) |
Ø night, range from coldest to warmest nightØ nightrange | 21° (70°)16– (61–)24 (75) | 21° (70°)16– (61–)23 (73) | 19° (66°)14– (57–)22 (72) | 16° (61°)11– (52–)20 (68) | 12° (54°)7– (45–)17 (63) | 11° (52°)5– (41–)15 (59) | 10° (50°)5– (41–)14 (57) | 10° (50°)6– (43–)15 (59) | 13° (55°)7– (45–)17 (63) | 15° (59°)10– (50–)19 (66) | 18° (64°)12– (54–)21 (70) | 19° (66°)14– (57–)22 (72) |
☀️Sunshine | 7h | 7h | 6h | 6h | 6h | 5h | 6h | 7h | 8h | 7h | 8h | 8h |
🌊Water Temp | 23° (73°) | 24° (75°) | 24° (75°) | 23° (73°) | 21° (70°) | 20° (68°) | 19° (66°) | 19° (66°) | 19° (66°) | 20° (68°) | 21° (70°) | 22° (72°) |
🌧Rain Days | 7d65mm (2.6") | 7d117mm (4.6") | 9d110mm (4.3") | 7d99mm (3.9") | 5d61mm (2.4") | 8d121mm (4.8") | 6d70mm (2.7") | 4d51mm (2.0") | 4d45mm (1.8") | 6d53mm (2.1") | 7d70mm (2.8") | 6d56mm (2.2") |
Best travel time current monthØ = average · small figures = range: coolest–warmest day / coldest–warmest nightClimate data 2005–2025 · Source: ERA5 + station data
Off-season — lowest travel prices with still acceptable climate.
September in Australia (Sydney) at 22°C (72°F) is too cool for a beach holiday, but suitable for sightseeing and hiking. The best travel months are January, February, November, and December.
Daytime highs average 22°C (72°F), cooling to 13°C (55°F) at night (daily average: 17°C (63°F)). Peaks reach around 31°C (88°F), the coldest nights around 7°C (45°F). The sun shines an average of 8 hours per day; there are 4 rain days with 45 mm (1.8 in) total. The sea is 19°C (66°F) — refreshing and manageable for confident swimmers.
A jacket for cool evenings should not be left behind. Sightseeing and excursions can be enjoyed comfortably at this time of year.
Spring in Sydney: jacaranda trees bloom purple in Newtown, the Royal Botanic Garden comes to life, and temperatures are ideal for harbour tours. Bondi Beach slowly fills up.
Packing list for Australia (Sydney) in September
- Long-sleeved shirts and light trousers
- Light jacket
- SPF 50 sunscreen
- Sunglasses
- Sun hat
- Small umbrella (occasional showers possible)
- Travel first-aid kit
Frequently Asked Questions
- Is September a good time to visit Australia (Sydney)?
- September is not an optimal month for Australia (Sydney) (Score: 78/100), but it is manageable. For better conditions, consider January, February, November, and December.
- How warm is it in Australia (Sydney) in September?
- In September, Australia (Sydney) sees daily highs of 22°C (72°F). Nights cool to 13°C (55°F), with a daily average of 17°C (63°F). Peaks reach around 31°C (88°F), the coldest nights around 7°C (45°F).
- How much rain falls in Australia (Sydney) in September?
- In September, Australia (Sydney) receives an average of 45 mm (1.8 in) of rain over 4 rain days. That is comparatively dry.
- How many sunshine hours does Australia (Sydney) get in September?
- Australia (Sydney) averages 8 sunshine hours per day in September — above the annual average.
- How warm is the water in Australia (Sydney) in September?
- Water temperature in Australia (Sydney) in September averages 19°C (66°F) — refreshing but slightly cool for sensitive swimmers.
