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Live forecasts update automatically; written guidance last reviewed 23 June 2026 by the Southern Focus Weather Desk. Data from the Bureau of Meteorology (BOM) and other national met services via Open-Meteo.
St Helens on Tasmania’s northeast coast experiences a mild maritime climate, with the live forecast above showing today’s conditions influenced by the Bay of Fires and adjacent ranges.
What defines St Helens weather day to day?
Sea breezes off Georges Bay and the Tasman Sea keep summers moderate, while winters stay relatively mild compared to inland Tasmanian locations.
- Summer (Dec–Feb): daytime maximums typically reach the low 20s (°C), with afternoon sea breezes providing coastal relief
- Winter (Jun–Aug): overnight minimums hover around 5–7°C, with frost rare near the water
- Rainfall is spread fairly evenly year-round, though spring and early summer can bring the highest totals
- Wind direction shifts frequently: westerlies arrive from the interior, while easterlies carry moist air off the ocean
When do weather hazards occur?
The main risks come from strong winds and heavy rain associated with east-coast lows, which can develop suddenly.
- East-coast lows: these systems can bring gale-force winds and prolonged rain, especially between autumn and spring
- Bushfire season: late spring through summer, with fire danger elevated when hot northwesterlies arrive ahead of cold fronts
- Check severe weather warnings for current alerts affecting the St Helens area
Does St Helens get snow?
Snow is extremely rare at sea level in St Helens. The surrounding ranges above 500 metres may see a light dusting once or twice most winters, but it rarely settles near the coast.
What is the best time to visit for fine weather?
Late summer (February to March) offers the most settled conditions: warm days, lower rainfall than early summer, and fewer strong wind events. Sea breezes keep the coast comfortable.
Is the water warm enough to swim?
Sea surface temperatures peak around 18–20°C in February and March, which many find refreshing. From June to November the water drops to 12–14°C, suitable only for wetsuit wearers.
Sources
For broader Tasmanian and Australian conditions, visit the Australia weather hub or see Hobart weather for southern comparisons.