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

47°F
Clear Sky
Feels like 45°F
H 47°F / L 44°F
Humidity: 58%
🇦🇺
Sydney

57°F
Overcast Clouds
Feels like 57°F
H 58°F / L 54°F
Humidity: 91%
Climate Overview
Great Falls
Great Falls on the Missouri River is Montana's windiest city, exposed to the open Hi-Line plains. Chinook winds from the Rocky Mountains can raise temperatures 50°F in hours, setting world records for rapid temperature rises. The city experienced a 103°F rise in 24 hours in 1972 — the largest temperature change ever recorded.
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 | 🇺🇸 Great 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 |
Great Falls vs Sydney: Frequently Asked Questions
Does Great Falls or Sydney have better weather?
Great Falls and Sydney have very different climates. Great Falls on the Missouri River is Montana's windiest city, exposed to the open Hi-Line plains. Ch 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 Great Falls vs Sydney?
Best time for Great Falls: spring and fall. Best time for Sydney: September, October, November, March, April.