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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.
Live data from Open-Meteo · updates automatically ·
The live forecast above captures Denham’s current conditions, which are typical of Shark Bay’s semi-arid coastal climate: summer maxima average 32–34°C, winter maxima around 20–22°C, and annual rainfall roughly 220 mm. The persistent afternoon sea breeze is a defining feature of this region.
What is the typical climate in Shark Bay?
Shark Bay’s climate is semi-arid with hot summers and mild winters. From December to February, average maxima reach 32–34°C, while June to August sees maxima of 20–22°C. Overnight lows in summer hover near 18°C and drop to 9–11°C in winter. Rainfall is low at approximately 220 mm per year, falling mainly between May and August. For broader context on the region, the Perth weather page and the Australia weather hub offer useful comparisons.
When is the best time to visit Shark Bay?
Autumn (March–May) and spring (September–November) offer the most comfortable conditions, with daytime temperatures between 22–28°C and lower humidity. Those consulting a shark bay weather 14 day forecast or shark bay weather 30 day forecast will see that January is the hottest month, with average maxima reaching 34°C, while July is the coolest around 20°C. The climate closely mirrors geraldton weather further south and the broader perth weather patterns along the west coast.
Does Shark Bay get very hot in summer?
Yes, summer maxima average 32–34°C at Denham, with occasional days above 40°C. The reliable afternoon sea breeze from the Indian Ocean provides significant cooling, making coastal areas more comfortable than inland locations.
What is the water temperature at Shark Bay?
Sea surface temperatures range from about 20°C in winter to 26–28°C in summer. The warm waters from October to April support the region’s dugong population and make swimming and snorkelling pleasant during those months.
Does it rain much in Shark Bay?
No, Shark Bay receives around 220 mm of rain annually, classified as semi-arid. Most rainfall occurs between May and August, with summers typically dry. This pattern is consistent with other coastal regions of Western Australia.