🇺🇸 Boise vs 🇦🇺 Sydney
Weather Comparison
Current Weather Right Now
🇺🇸
Boise
60°F
Overcast Clouds
Feels like 58°F
H 62°F / L 57°F
Humidity: 48%
🇦🇺
Sydney
59°F
Scattered Clouds
Feels like 58°F
H 59°F / L 58°F
Humidity: 91%
Climate Overview
Boise
Boise in the Treasure Valley has a semi-arid climate with hot, dry summers and cool winters. The city is in a rain shadow east of the Cascade-Sierra Nevada mountain chain, receiving only about 12 inches of precipitation annually. The Boise River and Greenbelt provide riparian cooling, while hot and dry conditions in summer can lead to significant wildfire smoke events from regional fires.
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 | 🇺🇸 Boise | 🇦🇺 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 |
Boise vs Sydney: Frequently Asked Questions
Does Boise or Sydney have better weather?
Boise and Sydney have very different climates. Boise in the Treasure Valley has a semi-arid climate with hot, dry summers and cool winters. The cit 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 Boise vs Sydney?
Best time for Boise: spring and fall. Best time for Sydney: September, October, November, March, April.