Bunbury Weather

Bunbury sits on the Indian Ocean at about 33° south, so the weather is kinder than most of Australia expects from “Western Australia”. Summers are hot and dry; winters are cool and the wettest months; spring and autumn are the shoulder seasons that locals often like best.

Through the year

Summer (December–February). The busy season. Days commonly sit in the high twenties to low thirties, the ocean is warm enough for a proper swim, and this is peak time for the Koombana Bay dolphins. Pack sun protection, a hat, and something warm for the sea breeze that usually comes in during the afternoon. Book accommodation early over school holidays and long weekends.

Autumn (March–May). Still good swimming weather in March, then milder days and fewer crowds. A comfortable time for the day trips — Ferguson Valley lunches, the Busselton Jetty, walking the inlet — without the mid-summer heat.

Winter (June–August). Cool and wet, with most of the year's rain. Average daytime maximums are around 17–18°C, with nights around 7–8°C. The ocean side of the peninsula is dramatic; the bay side is calmer. This is the season for galleries, long lunches and indoor programs at the entertainment centre, not for planning a beach holiday.

Spring (September–November). Wildflower season inland, whale season on the capes, and the water starting to warm again. November is the start of the main dolphin-watching window. A strong time to combine Bunbury with Dunsborough or Margaret River.

When to come

For swimming, dolphins and outdoor events, November to April is the safest bet. For wildflowers and fewer people, come in September or October. Winter still works if you are here for food, wine and a weekend away from Perth — just pack a jacket and do not count on the beach.

Current forecast

Always check the forecast before you travel, especially if you plan to swim or drive the capes. Conditions on the ocean beaches can change quickly.

WillyWeather forecast (opens in a new tab)  ·  Bureau of Meteorology (opens in a new tab)