Sydney Weather in September

Sydney in September averages 20°C (68°F) during the day and 13°C (55°F) at night. This is part of the summer season, and quite a bit of rainfall is expected this month.

Rainfall in Sydney in September

You can typically expect 12 days of rain this month, averaging around 111 mm (4.4 in). When showers do arrive, they tend to be on the heavier side. Worth being prepared even if rain days are not that numerous.

Temperature in Sydney in September

Temperatures in Sydney in September top out at 20°C (68°F) and drop to 13°C (55°F) overnight. September is typically considered a summer month. This creates a mild day-to-night pattern that is generally easy to manage with the right clothing. With overnight lows of 13°C (55°F), evenings can feel noticeably cooler than the daytime. An extra layer is a good idea, though the cool air makes for a good night's sleep.

Should you favor a climate that's both dry and comfortably warm, July and August typically offer the most agreeable circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.