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Live forecasts update automatically; written guidance last reviewed 23 June 2026 by the Southern Pulse Weather Desk. Data from the Bureau of Meteorology (BOM) and other national met services via Open-Meteo.
Yosemite’s weather varies dramatically with altitude and season. As shown in the live forecast above, conditions at the valley floor (around 1,200 m) differ sharply from the high country. Summer days are warm and dry, while winter brings heavy snow and icy roads.
What’s the typical weather pattern in Yosemite?
Yosemite experiences a Mediterranean-influenced mountain climate. Summer (June–September) is mostly dry with daytime highs in the valley reaching the high 20s °C and overnight lows around 10 °C. Autumn and spring are cool and can bring early or late snow. Winter (December–March) sees frequent snowfall, especially above 1,500 m, with valley highs often just above freezing and lows below zero.
How does Yosemite weather change by month?
January is the coldest month, February the snowiest. By May, snowmelt feeds roaring waterfalls. July and August are the warmest, though afternoon thunderstorms sometimes develop. October offers crisp, clear days ideal for hiking. For a deeper look at monthly averages, see the National Park Service’s Yosemite weather page.
What is the best time to visit Yosemite for good weather?
Late May through October offers the most reliable conditions, with warm days, little rain, and most trails and roads open. September is especially pleasant – fewer crowds and still mild. Winter visits are magical but require snow chains and cold-weather gear.
Does Yosemite ever get snow in summer?
Snow in July is extremely rare below 3,000 m, but high-elevation trails above 3,500 m can hold snow patches into August. Occasional late-spring storms in June may dust the valley, but it melts quickly. Check the NWS Hanford forecast for updates.
How accurate are 15-day forecasts for Yosemite?
Long-range outlooks (10–15 days) give general trends – such as a warm spell or storm system – but day-to-day accuracy drops sharply after about seven days. For trip planning, rely on the 10-day forecast and monitor live cams for real-time conditions.
Sources
For a broader view of Australian conditions, see the Australia weather hub. Travellers from Melbourne can check Melbourne Weather for departure planning.