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Live forecasts update automatically; written guidance last reviewed 23 June 2026 by the Coast Monitor 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 is mild and mostly clear today. Check the live forecast above for exact temperatures before heading out, as conditions can shift quickly in the Swan Valley region.
What to expect in Upper Swan today
The live forecast above gives you the day’s conditions at a glance. Upper Swan sits in the Swan Valley, which tends to be a degree or two warmer than central Perth due to its inland position. Expect light breezes from the east in the morning, turning to a sea breeze by mid-afternoon. The broader swan valley weather pattern is typical of the Mediterranean climate: warm and dry through summer, cooler and wetter in winter. For nearby towns, caversham weather and henley brook weather are almost identical to Upper Swan, while middle swan weather can be slightly cooler on the valley floor.
How far ahead does the forecast go?
The live forecast above updates regularly and shows outlooks for the coming days. For a longer view, the swan valley weather 14 day forecast is a reliable tool to plan outdoor activities, especially during harvest season or when visiting the local wineries. The Bureau of Meteorology also issues seven-day forecasts for Upper Swan that match the data shown here.
Is Upper Swan prone to fog?
Yes, especially in winter and early spring. The Swan Valley’s low-lying terrain traps moisture overnight, creating thick fog that can linger until mid-morning. Visibility can drop below 200 metres, so drive carefully on those mornings.
When is the best time to visit the Swan Valley?
Autumn (March–May) and spring (September–November) offer mild days, low humidity and clear skies. Summer can be very hot, with highs above 38°C, while winter brings cool, damp conditions but fewer crowds. Check the swan valley weather 14 day forecast before planning a trip.
See more regional weather at Australia weather hub or the Perth weather page. For severe weather alerts, check Severe Weather Warning.