🇺🇸 Seattle vs 🇦🇺 Sydney
Weather Comparison
Current Weather Right Now
🇺🇸
Seattle

43°F
Overcast Clouds
Feels like 38°F
H 44°F / L 41°F
Humidity: 89%
🇦🇺
Sydney

66°F
Clear Sky
Feels like 66°F
H 67°F / L 62°F
Humidity: 90%
Climate Overview
Seattle
Seattle's climate is defined by the Puget Sound, the Olympic Mountains to the west, and the Cascades to the east. The rain shadow effect of the Olympics makes Seattle significantly drier than the Washington coast. Summers are glorious (July averages less rainfall than Miami); winters are grey and drizzly but rarely brutal.
Sydney
Humid subtropical — warm summers, mild winters, year-round sunshine
Sydney enjoys one of the world's best climates. Summers are warm with beach weather; winters are mild enough for outdoor activities. The city is split between coastal suburbs (cooled by sea breezes) and inland western suburbs (dramatically hotter in summer).
Seasonal Comparison
| Season | 🇺🇸 Seattle | 🇦🇺 Sydney |
|---|---|---|
| Spring | — | 60–73°F September–November |
| Summer | — | 72–82°F December–February |
| Fall | — | 62–75°F March–May |
| Winter | — | 50–63°F June–August |
Seattle vs Sydney: Frequently Asked Questions
Does Seattle or Sydney have better weather?
Seattle and Sydney have very different climates. Seattle's climate is defined by the Puget Sound, the Olympic Mountains to the west, and the Cascades Sydney: Humid subtropical — warm summers, mild winters, year-round sunshine. The best city depends on your preferred season and temperature range.
When is the best time to visit Seattle vs Sydney?
Best time for Seattle: spring and fall. Best time for Sydney: September, October, November, March, April.