Planning a Trip to Sydney? Here's the Weather
See what weather to expect in Sydney, Australia and plan your trip with confidence. Monthly averages from real historical weather data.
Sydney's climate is shaped by its harbour setting, swinging from warm, rain-heavy late summer to crisp, dry autumn months that make the city's outdoor café culture genuinely pleasant. Highs peak around 27°C in January and dip to around 17°C in July, a range mild enough that the city never fully shuts down. On wetter days, Sydney's compact museum scene — from financial history to colonial archives — offers a surprisingly rich indoor alternative.
Written by Leo Vicente, founder & engineer who loves to travel
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22°C
Avg. high
14°C
Avg. low
1020mm
Yearly rainfall
5
Best months
Travel Window Score · 7.8/10
Sydney's best travel month is September — around 8 rain days and daytime highs near 21°C, on a 10-year historical average (climatology tier).
Climatology · 10-YR AVG · How we forecast →
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Start PlanningMonthly Temperature & Rainfall
27°
20°
107mm
Jan
26°
19°
110mm
Feb
25°
18°
157mm
Mar
23°
15°
77mm
Apr
20°
11°
78mm
May
17°
9°
76mm
Jun
17°
8°
72mm
Jul
18°
9°
69mm
Aug
21°
11°
55mm
Sep
23°
14°
75mm
Oct
24°
16°
79mm
Nov
26°
18°
65mm
Dec
What Weather to Expect in Sydney
Sydney typically has the most favorable weather for travel during April, September, October, November, December, with comfortable temperatures and relatively low rainfall — ideal conditions for sightseeing and outdoor activities.
Best Time to Visit Sydney
April, September, October, November, December form a drier stretch, with rainfall easing notably and September seeing just 55mm — ideal for coastal walks, harbour cruises, and long lunches on open-air terraces without the heavy downpours that define early in the year.
The best time to visit Sydney is April, September, October, November, December, when daytime highs average around 23°C and rainfall stays low at roughly 70mm per month. These months offer the most comfortable conditions for sightseeing, outdoor activities, and exploring the city at a relaxed pace. September is typically the driest of these months, with only around 55mm of precipitation.
March is the single wettest month, averaging 157mm, and is best avoided if rain-free sightseeing is a priority.
Sydney Weather by Season
Spring
Spring (March–May) brings mild weather to Sydney, with highs averaging 23°C and lows around 15°C. The season is quite wet, accumulating around 312mm total with roughly 12 rainy days per month.
Summer
Summer (June–August) brings mild weather to Sydney, with highs averaging 17°C and lows around 9°C. The season is moderately wet, accumulating around 217mm total with roughly 9 rainy days per month.
Autumn
Autumn (September–November) brings mild weather to Sydney, with highs averaging 23°C and lows around 14°C. The season is moderately wet, accumulating around 209mm total with roughly 10 rainy days per month.
Winter
Winter (December–February) brings warm weather to Sydney, with highs averaging 26°C and lows around 19°C. The season is moderately wet, accumulating around 282mm total with roughly 12 rainy days per month.
Things to do in Sydney
Handpicked activities you can book now, matched to typical weather in Sydney.
Itineraries Featuring Sydney
Climate data is a 10-year historical average (2016–2025), averaged across a wide area rather than a single weather station. Temperatures in Celsius. How we forecast →