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Live forecasts update automatically; written guidance last reviewed 23 June 2026 by the Oz Monitorly Weather Desk. Data from the Bureau of Meteorology (BOM) and other national met services via Open-Meteo.
Based on the live forecast above, expect mild to warm conditions with a slight chance of a passing shower. Swan Valley’s inland position often means temperatures run a few degrees higher than coastal Perth, so plan outdoor activities accordingly.
What will the temperature look like this week?
The live forecast above shows daytime highs typically in the low 20s to mid 30s Celsius, depending on the season. Overnight lows drop to 8–16 °C. For a more detailed outlook, check the swan valley weather 14 day forecast on our Perth weather page – it includes day-by-day trends for the valley’s microclimate.
Are there local weather variations?
Yes. The Swan Valley sits in the Swan Coastal Plain, so morning fog can linger near the river before burning off. Suburbs like Middle Swan often experience similar conditions, but inland areas can be 2–3 °C warmer than the Perth city centre. For hourly changes, the swan valley weather hourly data on the live forecast above will show you when breezes shift.
What is the typical rainfall in Swan Valley?
Annual rainfall averages 750–850 mm, falling mostly between May and September. Summer months are very dry – January typically sees only 10–15 mm. The live forecast above will show any immediate rain chances.
When is the best time to visit Swan Valley for outdoor events?
Autumn (March–May) and spring (September–November) offer the most pleasant daytime temperatures of 20–28 °C, lower humidity and minimal rain. Check the 14-day forecast on our Australia weather hub before planning a winery tour.
Does Swan Valley ever get severe weather?
Summer can bring heatwaves and dry lightning storms. Winter may see cold fronts with strong winds. Watch for any severe weather warnings on our site, especially when the live forecast above shows a rapid drop in pressure.