IDW10600 Australian Government Bureau of Meteorology Western Australia Cocos (Keeling) Islands Forecast Issued at 5:30 am WST on Saturday 19 September 2026 Weather Situation: A ridge well to the south of the islands is driving a southeasterly flow and generally settled weather. Forecast for the rest of Saturday 19 September Partly cloudy. Winds: E/SE 10 to 15 knots. Seas: 1 to 1.5 metres. Swell: S/SW 2 to 3 metres. Max 30 Forecast for Sunday 20 September Partly cloudy. Slight chance of a shower. Winds: E/SE 10 to 15 knots. Max 30 Outlook for Monday 21 September Cloudy. Medium chance of showers. Winds: E/SE 15 to 20 knots. Max 30 The next routine forecast will be issued at 4:30 pm WST Saturday.