Australian Government Bureau of Meteorology
South Australia
Marine Wind Warning Summary for South Australia
Issued at 03:50 PM CST on Thursday 18 September 2025
for the period until midnight CST Friday 19 September 2025
Wind Warnings for Thursday 18 September
Cancellation for the following areas:
Lower South East Coast
Wind Warnings for Friday 19 September
Gale Warning for the following areas:
South Central Coast, Upper South East Coast and Lower South East Coast
Strong Wind Warning for the following areas:
Adelaide Metropolitan Waters, Upper West Coast, Lower West Coast, Central Coast, Spencer Gulf, Gulf St Vincent and Investigator Strait
The next marine wind warning summary will be issued by 5:10 am CST Friday.
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Check the latest Coastal Waters Forecast or Local
Waters Forecast at http://www.bom.gov.au/sa/forecasts/map.shtml for information on wind,
wave and weather conditions for these coastal zones.
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Forecast
Nepean Bay (35.7512°S, 137.5952°E, 17m AMSL) set as my default location ›
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7 day forecast
Today: Clear. Winds W/NW 15 to 25 km/h becoming light in the evening.
Forecast for Nepean Bay (35.7512°S, 137.5952°E, 17m AMSL) Thu Fri Sat Sun Mon Tue Wed Summary 
Minimum 6° 7° 6° 8° 7° 5° 5° Maximum 22° 18° 16° 18° 17° 19° 19° Chance of rain 40% 80% 50% 30% 5% 10% 10% Likely amount < 1mm 1-5mm < 1mm < 1mm < 1mm < 1mm < 1mm UV index Moderate Moderate Moderate Moderate Moderate High High Fire Danger Rating - - - - - - - Frost risk Nil Nil Nil Nil Nil Slight Slight 9am 3pm 9am 3pm 9am 3pm 9am 3pm 9am 3pm 9am 3pm 9am 3pm Wind speed 18
(km/h)25
(km/h)27
(km/h)41
(km/h)17
(km/h)26
(km/h)20
(km/h)26
(km/h)17
(km/h)24
(km/h)6
(km/h)14
(km/h)7
(km/h)18
(km/h)Wind direction N NNW WNW WNW WSW W W WSW SSW SSW SW SW W W Relative humidity 75% 49% 75% 70% 70% 66% 80% 65% 69% 58% 73% 61% 78% 63% Dew point 11°C 11°C 11°C 11°C 7°C 9°C 11°C 11°C 8°C 8°C 9°C 10°C 10°C 12°C -
Sunrise and sunset times
Sunrise / Sunset for Nepean Bay (35.7512°S, 137.5952°E, 17m AMSL) First light Sunrise Sunset Last light Moon rise Moon set Moon phase New moon First quarter Full moon Last quarter 5:51am CST 6:16am CST 6:13pm CST 6:38pm CST 4:22am CST 2:36pm CST 
Waning crescent
New moon Sep 22 First quarter Sep 30 Full moon Oct 07 Last quarter Oct 14 -
Warnings
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Temperature for next 7 days
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Rain for next 7 days
