Sydney's Climate Year-Round: A Humid Subtropical Guide

Sydney enjoys a humid subtropical climate (Köppen Cfa) with four distinct seasons.

Summer (December–February)

Hot, sunny days with average temperatures of 20–30°C (68–86°F), occasionally soaring to 40°C (104°F). Nights are warm and humid (often 80% humidity).

Autumn (March–May)

Milder and less humid, averaging 15–23°C (59–73°F). Pleasant weather and colorful foliage make this a favorite season.

Winter (June–August)

Coolest period, with averages of 10–18°C (50–64°F). Nights can dip to 5°C (41°F). Lower humidity and crisp air.

Spring (September–November)

Warming temperatures (15–23°C / 59–73°F) and rising humidity. The city blooms with flowers and lush greenery.