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Live forecasts update automatically; written guidance last reviewed 23 June 2026 by the Australia Voice Weather Desk. Data from the Bureau of Meteorology (BOM) and other national met services via Open-Meteo.
Live data from Open-Meteo · updates automatically ·
St Helena Island, in Moreton Bay near Brisbane, has a subtropical climate with warm, humid summers and mild, dry winters. The live forecast above shows the current conditions; expect sea breezes to moderate the afternoon heat, particularly in summer.
What is the typical weather pattern for St Helena?
St Helena experiences a subtropical climate, with summer (December to February) average maximums around 29°C and winter (June to August) maximums near 21°C. Rainfall is highest from December to March, often from afternoon storms. The island’s coastal position means humidity is often higher than in Brisbane’s inner suburbs, but sea breezes provide regular relief. For broader conditions, check the Brisbane weather page for nearby mainland readings.
What should visitors expect for wind and UV?
Afternoon north-easterly sea breezes are common, strengthening from late morning. Winds can make the bay choppy for small boats. UV levels are extreme from September to April, so sun protection is essential. Winter brings lighter winds and clearer skies, making it the most comfortable time for tours.
Is St Helena weather the same as Brisbane city weather?
Generally similar, but St Helena is often 1–2°C cooler in summer due to sea breezes, and humidity is slightly higher. The island receives less rain than Brisbane’s western suburbs during storms.
What is the best time to visit St Helena for weather?
Autumn (March to May) and spring (September to November) offer mild temperatures, lower humidity, and reliable sea breezes. Summer can be hot and humid with storm risks, while winter is pleasant but cooler.
How does wind affect the ferry to St Helena?
Strong north-easterly winds, common in summer afternoons, can cause rough crossings. Check the st helena weather hourly forecast for wind speeds before booking. Morning crossings are usually calmer. For comparison, see hobart weather or launceston weather for southern conditions.