IDW10600 Australian Government Bureau of Meteorology Western Australia Cocos (Keeling) Islands Forecast Issued at 5:30 am WST on Wednesday 20 May 2026 Weather Situation: A high pressure ridge to the south the Islands will maintain a moderate southeasterly trade flow throughout the forecast period. Forecast for the rest of Wednesday 20 May Partly cloudy. Slight chance of a shower. Winds: E/SE 10 to 15 knots. Seas: 1 to 1.5 metres. Swell 1: SW 1.5 to 2 metres. Swell 2: S below 1 metre. Max 30 Forecast for Thursday 21 May Partly cloudy. Slight chance of a shower. Winds: E/SE 10 to 15 knots. Max 30 Outlook for Friday 22 May Partly cloudy. Slight chance of a shower. Winds: E/SE 10 to 15 knots. Max 31 The next routine forecast will be issued at 4:30 pm WST Wednesday.