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Live forecasts update automatically; written guidance last reviewed 23 June 2026 by the Aussie Insightly Weather Desk. Data from the Bureau of Meteorology (BOM) and other national met services via Open-Meteo.
Live data from Open-Meteo · updates automatically ·
Karratha weather is hot and mostly dry year-round, with a distinct wet season from December to March. The live forecast above shows today’s conditions. Located on the Pilbara coast, this tropical city experiences long, scorching summers and mild winters, typical of north-west Western Australia.
What does a typical year look like for Karratha?
Summer (October to April) brings daily maximums often above 35°C, high humidity, and the occasional tropical cyclone. Winter (May to September) is milder with daytime temperatures around 26°C and clear, sunny skies. The region’s low annual rainfall (roughly 300–400 mm) falls almost entirely in the wet season, often as heavy, short-lived downpours. For a more detailed picture of the yearly cycle, explore the karratha weather yearly and karratha weather monthly averages on the Bureau of Meteorology site.
How reliable are the short-term forecasts for Karratha?
The Bureau of Meteorology provides accurate 7-day forecasts, but for planning ahead you can check weather in karratha 10 days or even a karratha weather 14 day outlook. For hour-by-hour changes, the karratha weather hourly forecast from Weatherzone is useful. Always cross-reference the live forecast above with the karratha weather radar to track approaching storms.
Does Karratha experience cyclones?
Yes, Karratha lies in the cyclone-prone Pilbara region. Cyclones typically occur between November and April, bringing destructive winds and heavy rain. Check the karratha weather bom warnings and our Severe Weather Warning page for updates.
What is the humidity like in Karratha?
Humidity is highest from December to March, often exceeding 70% during the wet season. In winter it drops to around 30–40%, making conditions much more comfortable. The karratha weather hourly data shows the daily rise and fall.
When is the best time to visit Karratha?
The cooler, dry months from May to September are ideal for outdoor activities. Daytime temperatures are pleasant, and humidity is low. Avoid the summer wet season if you prefer mild conditions — the heat and humidity can be intense.
For a broader look at conditions across the country, visit the Australia weather hub. If you’re comparing climates, the Perth Weather page offers a different perspective from the southwest.