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Live forecasts update automatically; written guidance last reviewed 23 June 2026 by the Aussie Focus Hub Weather Desk. Data from the Bureau of Meteorology (BOM) and other national met services via Open-Meteo.
Live data from Open-Meteo · updates automatically ·
Kosciuszko National Park weather is highly variable and can change rapidly, with conditions at the summit often 10–15°C cooler than at the base. The live forecast above shows the current conditions across the park, which spans alpine, subalpine, and mountain environments.
What is the typical weather pattern in Kosciuszko National Park?
Summer (December–February) brings mild days (15–25°C at lower elevations) and frequent afternoon thunderstorms, while winter (June–August) delivers snow, frost, and sub-zero temperatures above 1,500 metres. Spring and autumn offer crisp, clear days but sudden cold snaps are common.
- Elevation is everything: Thredbo village (1,365 m) is cooler than Jindabyne (915 m), and the summit (2,228 m) is often 10°C colder with strong winds.
- Snow typically covers the high country from June to October; the main road (Kosciuszko Road) may close during blizzards.
- Rainfall is spread across the year, with a slight winter peak; annual precipitation exceeds 1,800 mm on the Main Range.
- UV index is extreme in summer even on overcast days – sun protection is essential above the treeline.
When is the best time to visit for clear weather?
Autumn (March–April) and late spring (October–November) offer the most stable conditions for hiking, with fewer storms and moderate temperatures. For the weather in snowy mountains 10 days ahead, the Bureau of Meteorology provides the most reliable mountain forecasts.
FAQ
What is the mt kosciuszko weather 21 day forecast?
Extended outlooks beyond 7–10 days are low confidence in alpine terrain. The Bureau of Meteorology issues a 7-day mountain forecast; for planning, check the weather in mount kosciuszko 10 days before your trip for the best accuracy.
How cold does it get at Mount Kosciuszko in winter?
Night-time lows on the summit regularly drop below -10°C in July and August, with wind chill making it feel much colder. Daytime highs are often around -2°C to 3°C even in clear weather.
What is the mount kosciuszko weather monthly pattern?
January is the warmest month (avg 6–22°C depending on elevation), July the coldest (-5 to 5°C). The wettest months are typically June and July; the driest are January and February. For kosciuszko national park weather december, expect mild days (15–25°C at base) with afternoon storms.
For broader conditions across the state, visit our Australia weather hub or check Sydney Weather for coastal influences. Stay alert to Severe Weather Warning updates before heading into the park.