IDW10700 Australian Government Bureau of Meteorology Western Australia Christmas Island Forecast Issued at 5:30 am WST on Saturday 19 September 2026 Weather Situation: A ridge well to the south of the island is driving a southeasterly flow and 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 1.5 to 2 metres. Max 27 Forecast for Sunday 20 September Partly cloudy. Winds: E/SE 10 to 15 knots. Max 27 Outlook for Monday 21 September Partly cloudy. Slight chance of a shower. Winds: E/SE 10 to 15 knots. Max 27 The next routine forecast will be issued at 4:30 pm WST Saturday.