IDW10700 Australian Government Bureau of Meteorology Western Australia Christmas Island Forecast Issued at 5:30 am WST on Wednesday 20 May 2026 Weather Situation: A high pressure ridge to the south of the Island will maintain a moderate east to southeasterly trade flow. Moist mid level winds from the northwest will bring intermittent showers throughout the forecast period. Forecast for the rest of Wednesday 20 May Partly cloudy. High chance of showers. Winds: SE about 10 knots. Seas: About 1 metre. Swell 1: S 1.5 to 2 metres. Swell 2: SW about 1 metre. Max 27 Forecast for Thursday 21 May Partly cloudy. High chance of showers. Winds: E/SE below 10 knots. Max 28 Outlook for Friday 22 May Partly cloudy. High chance of showers. Winds: E/SE about 10 knots. Max 28 The next routine forecast will be issued at 4:30 pm WST Wednesday.