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Live forecasts update automatically; written guidance last reviewed 23 June 2026 by the Coast Pulse 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 ·
Check the live forecast above for Tumby Bay before heading to the beach or boat ramp—coastal conditions can shift quickly on the Eyre Peninsula.
What’s driving Tumby Bay’s weather today?
Tumby Bay sits on the sheltered eastern side of the Eyre Peninsula, so its weather is strongly influenced by sea breezes off Spencer Gulf and the passage of cold fronts from the Great Australian Bight.
- Sea breeze – A cooling south‑westerly often arrives mid‑morning and strengthens through the afternoon, dropping the apparent temperature by several degrees.
- Frontal systems – Winter fronts bring rain and gusty winds, while summer heatwaves are broken by troughs moving east from Ceduna.
- Local variation – The headland at Cape Radstock can funnel winds, making conditions different from Port Lincoln weather just 40 km south.
How does the weather affect fishing and boating?
If you’re planning a trip offshore or to Coffin Bay weather, the live forecast above gives you the wind speed and swell direction you need, especially for the exposed southern beaches.
- Wind strength – Northerly winds under 15 km/h are ideal for flat‑water fishing inside the bay; anything over 25 km/h creates choppy conditions.
- Tides – Tumby Bay tides are semi‑diurnal with a range of about 1.5 m; check a dedicated tumby bay tides chart before launching.
- Rain – Light showers (<2 mm) rarely stop a day on the water, but persistent rain often signals an approaching front that will swing the wind.
What is the best time of year for calm weather in Tumby Bay?
Late summer to early autumn (February–April) brings the steadiest sea breezes and the least frontal activity. Morning winds are often under 10 km/h, making it ideal for kayaking or stand‑up paddleboarding inside the bay.
Where can I get a 14‑day forecast for Tumby Bay?
A tumby bay weather 14 day forecast is useful for planning holidays, but be aware that confidence drops sharply after day 7. The Bureau of Meteorology issues a 7‑day forecast; longer outlooks are available from sites such as Weatherzone and Elders.
How does Tumby Bay compare to weather in tumby bay 10 days ago?
The 10‑day trend shown in the live forecast above lets you spot temperature swings and wind shifts. Typically, a 5–8 °C drop signals a cold front passage, while a steady rise indicates a high‑pressure system settling over the gulf.
Sources
For more coastal conditions, check Australia weather hub or the Adelaide Weather page.