🇺🇸 Sioux Falls vs 🇦🇺 Sydney
Weather Comparison
Current Weather Right Now
🇺🇸
Sioux Falls

61°F
Few Clouds
Feels like 58°F
H 61°F / L 59°F
Humidity: 40%
🇦🇺
Sydney

58°F
Overcast Clouds
Feels like 57°F
H 59°F / L 56°F
Humidity: 91%
Climate Overview
Sioux Falls
Sioux Falls on the Big Sioux River is South Dakota's largest city with a continental climate typical of the northern Great Plains. The famous quartzite Falls Park waterfall in the center of the city is a geological marvel where the river drops over pink Sioux quartzite. Winters are cold with blizzards arriving from the northwest.
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 | 🇺🇸 Sioux Falls | 🇦🇺 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 |
Sioux Falls vs Sydney: Frequently Asked Questions
Does Sioux Falls or Sydney have better weather?
Sioux Falls and Sydney have very different climates. Sioux Falls on the Big Sioux River is South Dakota's largest city with a continental climate typical 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 Sioux Falls vs Sydney?
Best time for Sioux Falls: spring and fall. Best time for Sydney: September, October, November, March, April.