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Live forecasts update automatically; written guidance last reviewed 23 June 2026 by the Aussie Wire 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 ·
Upper Swan weather typically brings warm, dry summers and cool, wet winters, characteristic of Western Australia’s Swan Valley region. The live forecast above shows today’s conditions, with summer highs often reaching the mid-30s Celsius and winter lows around 5–10°C.
What is the best time to visit Upper Swan?
The most pleasant months are from October to April, when daytime temperatures range from the low 20s to mid-30s. Spring and autumn offer mild, sunny days perfect for exploring the Swan Valley wine region. Summer (December–February) can be very hot, so plan outdoor activities for early morning or late afternoon. Winter (June–August) brings cooler, wetter weather, ideal for cosy cellar door visits.
What should I pack for Upper Swan?
Pack light, breathable clothing for summer alongside a hat and sunscreen. Evenings can cool down, so a light jacket is useful. For winter, bring a warm coat and a waterproof layer. Comfortable walking shoes are essential for vineyard tours. The Perth weather guide provides similar packing advice for the broader region.
How does Upper Swan weather compare to Caversham?
Upper Swan and nearby Caversham weather are nearly identical, given their proximity in the Swan Valley. Both experience the same Mediterranean climate, though Upper Swan can be slightly cooler overnight due to its more rural setting.
Is there a good 14-day forecast for the Swan Valley?
A Swan Valley weather 14 day forecast from the Bureau of Meteorology gives a reliable outlook for Upper Swan. It’s best used as a general guide, as conditions can shift, especially during spring and autumn transition periods.
When are school holidays in the Swan Valley?
School holidays in Western Australia fall in April, July, and October. These periods are popular for visiting the Swan Valley, so book accommodation early. The weather is generally fine in April and October, while July is cooler and wetter.