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Live forecasts update automatically; written guidance last reviewed 23 June 2026 by the Coast Pulse Weather Desk. Data from the Bureau of Meteorology (BOM) and other national met services via Open-Meteo.
Live data from Open-Meteo · updates automatically ·
For the most accurate current conditions in Mordialloc, check the live forecast above. This bayside suburb enjoys a temperate oceanic climate, meaning mild winters and warm summers, but the weather can shift quickly with sea breezes and passing fronts.
What is the best time to visit Mordialloc?
The safest bet for beach weather runs from December through February, when average highs sit around the mid-20s Celsius. March and April offer a pleasant shoulder season with fewer crowds and still-swimmable water. Winters (June–August) are cool and often wet, but a winter-escape trip can be worthwhile if you book school-holiday accommodation early – just pack layers and a rain jacket.
How does the local climate affect what I should pack?
Given Mordialloc’s location on Port Phillip Bay, a wind jacket is useful even in summer, especially late afternoon when the sea breeze picks up. For a summer day, bring swimmers, sun protection, and a light jumper for the evening. In winter, waterproof shoes and a warm coat are essential, and don’t forget an umbrella – the region receives reliable winter rain.
When is the best time to swim at Mordialloc Beach?
From December to March the water is warmest, around 19–22°C. Even then, the bay can feel chilly compared to northern beaches, so check the live forecast before heading out. A wetsuit is rarely needed but can extend your swim by a few weeks either side of summer.
How reliable are the weather in Mordialloc 10‑day forecasts?
Long‑range forecasts give a useful trend, but day‑to‑day accuracy drops after about five days. For the most dependable outlook, tap the live forecast above and cross‑reference with the BOM’s Melbourne weather page for synoptic updates.
Does Mordialloc experience strong winds?
Yes – south‑westerly and north‑westerly winds can pick up suddenly, especially in spring. Check the severe weather warning section if you’re planning a day on the water, and use the weather radar on the live forecast above to track approaching fronts.
Sources
For broader planning, visit the Australia weather hub or check Melbourne weather for regional patterns. Keep an eye on the mordialloc weather radar in the live forecast above to stay ahead of rain bands sweeping across Port Phillip.