Home › Weather › Bass Strait Weather Spirit Of Tasmania 7 Days
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.
Swell heights across Bass Strait for the Spirit of Tasmania route are forecast to range from 1.5 to 3.0 metres over the next 7 days, with winds shifting from northwesterly 20–30 km/h to southwesterly 25–40 km/h by mid-week. This means generally moderate conditions, though a period of stronger southwesterlies mid-week may cause rougher seas.
What are the specific Bass Strait crossing conditions for the Spirit of Tasmania over the next 7 days?
Based on the live forecast above, the first 48 hours show northwesterly winds 20–30 km/h with swell around 1.5–2.5 metres, making for a comfortable crossing. From day 3 to day 5, a cold front brings southwesterly winds 25–40 km/h and swell building to 2.5–3.0 metres, which may cause moderate to rough conditions. Days 6–7 see winds easing to 15–25 km/h from the west, with swell dropping back to 1.5–2.0 metres. For those checking bass strait weather spirit of tasmania tomorrow or bass strait weather spirit of tasmania tomorrow hourly, the most significant change occurs around day 3.
How does the Bass Strait swell map look for the next 14 days?
The bass strait swell map 14 days indicates a primary southwesterly swell train arriving mid-week, with peak periods of 10–12 seconds. After day 7, a secondary westerly swell of 1.0–1.5 metres is expected, keeping conditions manageable. For bass strait weather 14 days, the pattern suggests a return to lighter winds and lower swell by the second weekend. Those interested in bass strait weather spirit of tasmania tonight should note the overnight northwesterly breeze at 15–20 km/h, with seas remaining slight.
Is the Spirit of Tasmania likely to be cancelled this week?
Cancellations are possible if sustained winds exceed 45 km/h or swell tops 4.0 metres. Based on the 7-day forecast, conditions remain below those thresholds, though the mid-week southwesterly surge warrants monitoring the live forecast above.
What is the best time to cross Bass Strait in the next 7 days?
The first 48 hours and the final two days of the forecast window offer the calmest conditions, with winds under 25 km/h and swell below 2.0 metres. Mid-week crossings may be rougher due to stronger southwesterly winds.
Where can I find the Bass Strait weather 7 days BOM data?
The Bureau of Meteorology provides official marine forecasts for Bass Strait. For a quick overview, the live forecast above is updated regularly, and you can cross-reference with BOM’s coastal waters forecast for Central and Eastern Bass Strait.
Sources
For broader conditions, see our Australia weather hub or the Melbourne Weather page. If severe weather develops, check the Severe Weather Warning page.