IDN11028 Australian Government Bureau of Meteorology New South Wales South Coast District Forecast Issued at 9:52 pm EDT on Saturday 20 December 2025 for the period until midnight EDT Wednesday 24 December 2025. Warning Information For latest warnings go to www.bom.gov.au, subscribe to RSS feeds, call 1300 659 210* or listen for warnings on relevant TV and radio broadcasts. Weather Situation A broad low pressure trough is moving into the west and south today, drawing heat and moisture into the state, and will become associated with a cold front and deepen on Sunday as a low develops to the south, before pushing into the northeast early in the new working week. Following this, a high pressure ridge will build across the west and south early next week. Forecast for the rest of Saturday 20 December Mostly clear. Slight chance of a shower in the north, near zero chance elsewhere. The chance of a thunderstorm in the north, possibly severe with damaging winds, large hail and heavy rain which may lead to flash flooding. Light winds. Forecast for Sunday 21 December Cloudy. The chance of fog in the south in the early morning. Very high chance of rain. The chance of a thunderstorm in the afternoon and evening, possibly severe with damaging winds, large hail and heavy rain which may lead to flash flooding. Light winds becoming north to northeasterly 15 to 25 km/h in the early afternoon then tending north to northwesterly in the evening. Overnight temperatures falling to between 15 and 18 with daytime temperatures reaching 24 to 29. Batemans Bay Rain. Possible storm. Min 17 Max 28 Bega Rain. Min 15 Max 27 Merimbula Rain increasing. Min 16 Max 25 Fire Danger: Illawarra/Shoalhaven: Moderate Far South Coast: Moderate Sun protection 8:30am to 5:20pm, UV Index predicted to reach 13 [Extreme] Forecast for Monday 22 December Mostly sunny morning. Medium chance of showers, most likely in the evening. Winds northwest to southwesterly 15 to 25 km/h tending southwesterly in the morning then tending northeast to southeasterly in the middle of the day. Overnight temperatures falling to between 13 and 20 with daytime temperatures reaching the low to high 20s. Batemans Bay Partly cloudy. Min 18 Max 25 Bega Possible shower. Min 15 Max 27 Merimbula Sunny. Min 15 Max 25 Forecast for Tuesday 23 December Partly cloudy. The chance of morning fog about the coastal ranges. Medium chance of showers, most likely in the morning and afternoon. Light winds becoming southeast to southwesterly 20 to 30 km/h during the morning then tending northeast to southeasterly 15 to 25 km/h during the evening. Overnight temperatures falling to between 11 and 16 with daytime temperatures reaching 21 to 26. Batemans Bay Possible shower. Min 15 Max 25 Bega Shower or two. Min 13 Max 26 Merimbula Shower or two clearing. Min 14 Max 24 Forecast for Wednesday 24 December The chance of morning fog about the coastal ranges. Mostly sunny day. Slight chance of a shower in the evening. Light winds becoming northeast to southeasterly 15 to 25 km/h during the day then tending northwest to southwesterly 15 to 20 km/h during the evening. Overnight temperatures falling to between 9 and 15 with daytime temperatures reaching 23 to 30. Batemans Bay Possible late shower. Min 13 Max 28 Bega Mostly sunny. Min 12 Max 26 Merimbula Partly cloudy. Min 13 Max 23 The next routine forecast will be issued at 5:05 am EDT Sunday. * Calls to 1300 numbers cost around 27.5c incl. GST, higher from mobiles or public phones. Copyright Commonwealth of Australia 2011, Bureau of Meteorology (ABN 92 637 533 532). Users of these web pages are deemed to have read and accepted the conditions described in the Copyright, Disclaimer, and Privacy statements (http://www.bom.gov.au/other/copyright.shtml).