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

55°F
Broken Clouds
Feels like 53°F
H 58°F / L 54°F
Humidity: 62%
🇦🇺
Sydney

57°F
Few Clouds
Feels like 56°F
H 58°F / L 55°F
Humidity: 92%
Climate Overview
Harrisburg
Harrisburg, Pennsylvania's capital, on the Susquehanna River at the eastern edge of the Appalachians has an interesting transitional climate. The Susquehanna provides humidity and flooding risk (the 1972 Agnes flood was catastrophic here) while the Appalachian ridges to the west create some weather modification. Three Mile Island's nuclear plant just south made the city world-famous for a near-disaster in 1979.
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 | 🇺🇸 Harrisburg | 🇦🇺 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 |
Harrisburg vs Sydney: Frequently Asked Questions
Does Harrisburg or Sydney have better weather?
Harrisburg and Sydney have very different climates. Harrisburg, Pennsylvania's capital, on the Susquehanna River at the eastern edge of the Appalachians 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 Harrisburg vs Sydney?
Best time for Harrisburg: spring and fall. Best time for Sydney: September, October, November, March, April.