Australia Sydney Weather in October — Climate Guide
October in Sydney is Excellent
October is Excellent for Sydney.
October is full spring. 22°C daytime, 13°C nights. Sea warming to 18°C (cool but swim-possible). Hotel rates 20% below summer peak. The shoulder-month sweet spot before summer crowds arrive.
Daylight saving begins first Sunday October — sunsets jump from 17:50 (September) to 19:11 (October). Outdoor activity windows expand dramatically.
Travel score
Sydney October Weather Stats
Avg High
22°C
Avg Low
13°C
Rainy Days
11
78mm total
Sunshine
7h
Daily avg
Humidity
60%
Comfortable
UV Index
10
Very high
Wind
17 km/h
Gusts 34
Sea Temp
18°C
Avg water temp
Crowds
Moderate
At attractions
October Sunrise & Sunset
Air Quality
PM2.5
13 μg/m³
PM10
26 μg/m³
Status
Good
Feels-Like Temperature & Wind
Feels like
Daytime
24°C
Nighttime
12°C
Humidity and wind affect how the actual temperature feels.
Wind
17 km/h
Max gust 34 km/h
Activities Recommended for October
October Travel Pros & Cons
Pros
- Spring weather + extended daylight (DST begins)
- Sculpture by the Sea festival
- Hotel rates still 20% below summer peak
Cons
- Sea still cool (18°C)
- UV climbing back to 10 (high)
- Sydney Marathon weekend traffic disruption
October Events & Festivals
- Daylight Saving begins (first Sunday October)
- Sydney Marathon (mid-October Sunday)
- Sculpture by the Sea (late October to early November)
Sydney in October — Full Picture
October is full spring. 22°C daytime, 13°C nights. Sea warming to 18°C (cool but swim-possible). Hotel rates 20% below summer peak. The shoulder-month sweet spot before summer crowds arrive.
Daylight saving begins first Sunday October — sunsets jump from 17:50 (September) to 19:11 (October). Outdoor activity windows expand dramatically.
Sydney Marathon (mid-October Sunday) is Australia's biggest marathon — 40,000+ runners. Streets close + transit disrupted. Sculpture by the Sea (late October to early November) lines Bondi-Coogee Coastal Walk with 100+ art installations — the canonical photo-walking event.
What to Wear & What to Pack
Late spring — T-shirts during the day, light jacket for evenings. Daylight saving begins first Sunday October — sunsets extend to 19:11. Swimming returns for hardier travelers.
Packing Checklist
Seasonal Weather Overview
Spring (Mar·Apr·May)
22°C
14.3°C
12.3/mo
Summer (Jun·Jul·Aug)
17°C
8.7°C
10.3/mo
Autumn (Sep·Oct·Nov)
Current22°C
13.3°C
10.7/mo
Winter (Dec·Jan·Feb)
25.7°C
18.3°C
11.7/mo
Sydney Monthly Weather Comparison
| Month | High | Low | Rain | Sun | Humid | UV | Crowd | Price |
|---|---|---|---|---|---|---|---|---|
| January (Best) | 26° | 19° | 12d·102mm | 7.5h | 65% | 12 | Very busy | Peak |
| February (Best) | 26° | 19° | 12d·117mm | 7h | 67% | 12 | Busy | Peak |
| 25° | 17° | 13d·130mm | 6.5h | 67% | 10 | Busy | Shoulder | |
| 22° | 15° | 12d·127mm | 6.5h | 66% | 7 | Moderate | Shoulder | |
| 19° | 11° | 12d·121mm | 6h | 68% | 5 | Moderate | Shoulder | |
| 17° | 9° | 11d·132mm | 5.5h | 70% | 4 | Moderate | Shoulder | |
| 16° | 8° | 10d·98mm | 6h | 68% | 4 | Moderate | Shoulder | |
| 18° | 9° | 10d·81mm | 6.5h | 64% | 6 | Moderate | Low season | |
| September (Best) | 20° | 11° | 10d·70mm | 7h | 60% | 8 | Moderate | Shoulder |
| October (Best) | 22° | 13° | 11d·78mm | 7h | 60% | 10 | Moderate | Shoulder |
| November (Best) | 24° | 16° | 11d·84mm | 7.5h | 60% | 11 | Busy | Peak |
| December (Best) | 25° | 17° | 11d·78mm | 7.5h | 62% | 11 | Very busy | Peak |
View Other Months
Sydney October Hotel Picks
Frequently Asked Questions
Is October a good time to visit Sydney?
Sydney in October is Excellent. Tourist crowds are moderate and flight/hotel prices are shoulder.
What's the average temperature in Sydney in October?
Sydney October averages a high of 22°C and a low of 13°C.
Does it rain much in Sydney in October?
Sydney October averages 78mm of rainfall over about 11 rainy days.
What should I wear in Sydney in October?
Late spring — T-shirts during the day, light jacket for evenings. Daylight saving begins first Sunday October — sunsets extend to 19:11. Swimming returns for hardier travelers.
What time are sunrise and sunset in Sydney in October?
Sydney October sunrise is 06:14 and sunset is 19:11, with 12h 57m of daylight.
What's the air quality like in Sydney in October?
Sydney October air quality (AQI) averages 40, rated Good. PM2.5 averages 13μg/m³.
What activities are recommended in Sydney in October?
In October, Sydney is great for Sculpture by the Sea (Bondi-Coogee Walk), Sydney Marathon, Spring Carnival racing.
Is October peak season in Sydney?
Sydney October crowds are moderate and prices are shoulder. You can travel relatively comfortably without long queues.
Best Months to Visit Sydney
View Other Months
Why you can trust weather guide
Based in Chiang Mai for 8+ years, with 30+ countries visited across Southeast Asia, Japan, and Europe. Every detail in this guide is primary-source verified as of April 2026, with prices auto-refreshed via live exchange rate APIs. This isn't AI-generated boilerplate — it's written from the perspective of someone who has actually been there.