BoM St Johns Marine Weather Forecast

Mean Sea Level Prognosis Charts

Mean Sea Level Prognosis Charts

Other SA Coastal Waters Forecasts

Forecast for Wednesday, 21 October
Weather: Clear.
Winds: East to southeasterly about 10 knots increasing to 10 to 15 knots in the evening.
Seas: Below 1 metre.
Swell: Southwesterly 3 metres.
Forecast for Thursday, 22 October
Weather: Partly cloudy.
Winds: Easterly 10 to 15 knots turning north to northeasterly below 10 knots in the early morning then becoming variable in the middle of the day.
Seas: Below 1 metre.
Swell: Southwesterly 3 metres.
Forecast for Friday, 23 October
Weather: Partly cloudy.
Winds: Variable below 10 knots becoming southwesterly 10 to 15 knots in the early morning then tending southerly in the morning.
Seas: Around 1 metre.
Swell: Southwesterly 3 metres.
Forecast for Saturday, 24 October
Weather: Cloudy. 80% chance of showers. The chance of a thunderstorm in the morning.
Winds: Southerly 10 to 15 knots increasing to 20 knots before turning southwesterly 10 to 15 knots during the day.
Seas: Around 1 metre.
Swell: Southwesterly 3 metres.

Forecast for Wednesday, 21 October
Weather: Partly cloudy.
Winds: East to southeasterly 10 to 15 knots.
Seas: Below 1 metre.
Swell: Southwesterly 2.5 to 3 metres.
Forecast for Thursday, 22 October
Weather: Mostly sunny.
Winds: East to northeasterly 10 to 15 knots tending northwest to northeasterly in the morning then tending south to southeasterly 15 to 20 knots in the early afternoon.
Seas: Around 1 metre, increasing to 1 to 1.5 metres offshore later in the evening.
Swell: Southwesterly 2.5 to 3 metres.
Forecast for Friday, 23 October
Weather: Mostly sunny morning. The chance of a thunderstorm inshore in the late afternoon and evening.
Winds: South to southeasterly 15 to 20 knots.
Seas: 1 to 1.5 metres, decreasing to 1 metre during the morning, then increasing to 1 to 1.5 metres by early evening.
Swell: Southwesterly 2.5 to 3 metres.
Forecast for Saturday, 24 October
Weather: Cloudy. 80% chance of showers. The chance of a thunderstorm in the morning.
Winds: Southerly 15 to 20 knots turning southwesterly during the afternoon.
Seas: 1 to 1.5 metres.
Swell: Southwesterly 2.5 to 3 metres.

Forecast for Wednesday, 21 October
Weather: Clear.
Winds: South to southwesterly 10 to 15 knots tending south to southeasterly below 10 knots during the afternoon and evening.
Seas: Below 1 metre.
Swell: South to southwesterly below 0.5 metres.
Forecast for Thursday, 22 October
Weather: Partly cloudy.
Winds: Variable about 10 knots.
Seas: Below 1 metre.
Swell: South to southwesterly below 1 metre.
Forecast for Friday, 23 October
Weather: Partly cloudy.
Winds: Variable below 10 knots becoming southerly 10 to 15 knots in the middle of the day.
Seas: Below 1 metre.
Swell: South to southwesterly below 1 metre.
Forecast for Saturday, 24 October
Weather: Partly cloudy. 95% chance of showers. The chance of a thunderstorm in the morning and afternoon.
Winds: Southerly 15 to 20 knots.
Seas: Below 1 metre, increasing to 1 to 1.5 metres during the afternoon or evening.
Swell: South to southwesterly below 1 metre.

Forecast for Wednesday, 21 October
Weather: Clear.
Winds: Southeasterly 10 to 15 knots.
Seas: Below 1 metre.
Swell: West to southwesterly 1 to 1.5 metres.
Forecast for Thursday, 22 October
Weather: Mostly sunny.
Winds: Northeast to southeasterly 10 to 15 knots tending north to northeasterly in the morning then becoming variable about 10 knots in the early afternoon.
Seas: Below 1 metre.
Swell: West to southwesterly 1 to 2 metres, decreasing to 1 to 1.5 metres during the morning.
Forecast for Friday, 23 October
Weather: Partly cloudy.
Winds: Variable about 10 knots becoming south to southwesterly 10 to 15 knots in the middle of the day then tending south to southeasterly in the evening.
Seas: Around 1 metre.
Swell: West to southwesterly 1 to 2 metres.
Forecast for Saturday, 24 October
Weather: Cloudy. 90% chance of showers. The chance of a thunderstorm in the morning and afternoon.
Winds: Southerly 15 to 20 knots.
Seas: Around 1 metre.
Swell: West to southwesterly 1 to 2 metres.

Forecast for Wednesday, 21 October
Weather: Clear.
Winds: South to southeasterly 10 to 15 knots tending east to southeasterly in the evening.
Seas: Below 1 metre.
Swell: Southwesterly 2.5 to 3 metres inshore, increasing to 3 to 4 metres offshore.
Forecast for Thursday, 22 October
Weather: Mostly sunny.
Winds: East to northeasterly 10 to 15 knots, reaching up to 20 knots south of Port MacDonnell early in the morning. Winds turning north to northwesterly in the late morning.
Seas: Around 1 metre.
Swell: Southwesterly 2.5 to 3 metres inshore, increasing to 3 to 4 metres offshore.
Forecast for Friday, 23 October
Weather: Partly cloudy.
Winds: North to northwesterly about 10 knots becoming west to southwesterly in the morning then tending south to southwesterly 10 to 15 knots in the early afternoon.
Seas: Below 1 metre.
Swell: Southwesterly 3 metres inshore, increasing to 3 to 4 metres offshore.
Forecast for Saturday, 24 October
Weather: Partly cloudy. 90% chance of showers. The chance of a thunderstorm in the morning and afternoon.
Winds: South to southwesterly below 10 knots tending west to southwesterly 10 to 15 knots during the day then tending south to southwesterly during the afternoon.
Seas: Below 1 metre.
Swell: Southwesterly 3 metres inshore, increasing to 3 to 4 metres offshore.

Forecast for Wednesday, 21 October
Weather: Clear.
Winds: South to southeasterly 10 to 15 knots tending east to southeasterly in the evening.
Seas: Around 1 metre.
Swell: Southwesterly 3 metres.
Forecast for Thursday, 22 October
Weather: Partly cloudy.
Winds: Easterly 10 to 15 knots turning north to northeasterly below 10 knots in the early morning then becoming variable in the middle of the day.
Seas: Below 1 metre.
Swell: Southwesterly 3 metres.
Forecast for Friday, 23 October
Weather: Partly cloudy.
Winds: Variable below 10 knots becoming southwesterly 10 to 15 knots before dawn then tending southerly 15 to 20 knots in the morning.
Seas: Below 0.5 metres, increasing to around 1 metre during the morning.
Swell: Southwesterly 3 metres.
Forecast for Saturday, 24 October
Weather: Cloudy. 80% chance of showers. The chance of a thunderstorm in the morning.
Winds: Southerly 15 to 20 knots turning southwesterly 10 to 15 knots during the evening.
Seas: Around 1 metre, increasing to 1 to 1.5 metres during the afternoon or evening.
Swell: Southwesterly 3 metres.

Forecast for Wednesday, 21 October
Weather: Clear.
Winds: East to southeasterly about 10 knots increasing to 10 to 15 knots in the late afternoon.
Seas: Below 1 metre.
Swell: Southwesterly 3 metres, increasing to 3 to 4 metres later in the evening.
Forecast for Thursday, 22 October
Weather: Mostly sunny.
Winds: East to northeasterly 10 to 15 knots tending northwest to northeasterly in the morning then becoming variable below 10 knots in the evening.
Seas: Below 1 metre.
Swell: Southwesterly 3 to 4 metres, decreasing to 3 metres during the morning.
Forecast for Friday, 23 October
Weather: Partly cloudy.
Winds: Northwest to southwesterly 10 to 15 knots tending southwesterly in the morning then tending southerly in the late afternoon.
Seas: Below 1 metre.
Swell: Southwesterly 3 metres, increasing to 3 to 4 metres west of Kangaroo Island.
Forecast for Saturday, 24 October
Weather: Cloudy. 80% chance of showers. The chance of a thunderstorm in the afternoon and evening.
Winds: South to southwesterly below 10 knots increasing to 10 to 15 knots during the morning.
Seas: Around 1 metre.
Swell: Southwesterly 3 metres.

Forecast for Wednesday, 21 October
Weather: Clear.
Winds: South to southwesterly 10 to 15 knots, reaching up to 20 knots north of Cowell to Wallaroo in the late afternoon. Winds tending south to southeasterly in the evening.
Seas: Around 1 metre.
Swell: South to southwesterly below 1 metre, increasing to 1 to 1.5 metres south of Cowell to Wallaroo.
Forecast for Thursday, 22 October
Weather: Partly cloudy.
Winds: Variable about 10 knots becoming north to northeasterly 10 to 15 knots in the morning then tending southeast to southwesterly in the late evening.
Seas: Below 1 metre.
Swell: South to southwesterly below 1 metre, increasing to 1 to 2 metres south of Cowell to Wallaroo.
Forecast for Friday, 23 October
Weather: Partly cloudy.
Winds: Variable about 10 knots becoming southwesterly 10 to 15 knots in the morning then tending southerly 15 to 20 knots in the middle of the day.
Seas: Around 1 metre, increasing to 1 to 1.5 metres north of Cowell to Wallaroo during the afternoon.
Swell: South to southwesterly below 1 metre, increasing to 1 to 1.5 metres south of Cowell to Wallaroo.
Forecast for Saturday, 24 October
Weather: Partly cloudy. 95% chance of showers. The chance of a thunderstorm.
Winds: Southerly 15 to 25 knots.
Seas: Around 1 metre, increasing to 1 to 2 metres during the afternoon or evening.
Swell: South to southwesterly below 1 metre, increasing to 1 to 1.5 metres south of Cowell to Wallaroo.

Forecast for Wednesday, 21 October
Weather: Clear.
Winds: Southerly 10 to 15 knots turning southeasterly in the evening.
Seas: Below 1 metre.
Swell: Southwesterly 2.5 to 3 metres.
Forecast for Thursday, 22 October
Weather: Mostly sunny.
Winds: Variable below 10 knots becoming north to northeasterly 10 to 15 knots in the early morning then becoming variable about 10 knots in the early afternoon.
Seas: Below 1 metre.
Swell: Southwesterly 2.5 to 3 metres.
Forecast for Friday, 23 October
Weather: Partly cloudy.
Winds: Variable below 10 knots becoming southwesterly 10 to 15 knots in the morning then tending southerly in the late afternoon.
Seas: Below 1 metre.
Swell: Southwesterly 2.5 to 3 metres.
Forecast for Saturday, 24 October
Weather: Partly cloudy. 90% chance of showers. The chance of a thunderstorm in the afternoon and evening.
Winds: Southerly about 10 knots increasing to 15 to 20 knots during the day.
Seas: Below 1 metre, increasing to 1 to 1.5 metres during the evening.
Swell: Southwesterly 3 metres.

Forecast for Wednesday, 21 October
Weather: Mostly clear.
Winds: Southeasterly 10 to 15 knots.
Seas: Below 1 metre.
Swell: Southwesterly 2.5 to 3 metres.
Forecast for Thursday, 22 October
Weather: Partly cloudy.
Winds: Variable about 10 knots.
Seas: Below 1 metre.
Swell: Southwesterly 2.5 to 3 metres.
Forecast for Friday, 23 October
Weather: Partly cloudy. The chance of a thunderstorm at night.
Winds: Variable about 10 knots becoming southerly 15 to 20 knots in the early morning.
Seas: Around 1 metre.
Swell: Southwesterly 2.5 to 3 metres.
Forecast for Saturday, 24 October
Weather: Cloudy. 90% chance of showers. The chance of a thunderstorm in the morning.
Winds: Southerly 15 to 20 knots.
Seas: 1 to 1.5 metres.
Swell: Southwesterly 2.5 to 3 metres.
Nuriootpa
▲ N
6 kn ENE
· 26 °C
Warnings
No warnings within 100 km.
State Wide
Temperature
St Johns
26 °C 27 °C 3pm 10 °C 6am
↓ Cooling
Now: 26 °C
Weather Now for St Johns
Clear.
26 °C
Feels like 25 °C
Wind
6 kn ENE
Humidity
43%
Pressure
1018 hPa
At Nuriootpa
Nearby Wind
50 km radius
N S W E 7 kn Roseworthy Eudunda 7 kn Mount Crawford 11 kn Edinburgh Airport
St Johns
6 kn ENE
Recent Locations
St Johns
6 kn ENE
27°
Taroomball
10 kn NE
24°
Picnic Beach -
Bonbeach
11 kn SSW
Murray Bridge East -
Greenwood
7 kn WNW
20°
Miriam Vale -
Sun
6:25am rise 7:32pm set
13 h 7 m of daylight
Now: 4:24pm
124 seconds more than yesterday
Moon
2:32pmrise 3:32amset
74% illuminated
Waxing Gibbous
Live Weather
Nearby
Nuriootpa, SA
6 kn ENE
27°
Roseworthy, SA
7 kn SSE
29°
Mount Crawford, SA
7 kn E
23°
Edinburgh Airport, SA
11 kn SSW
28°
Windiest in Australia
Cape Leeuwin, WA
34 kn NW
19°
Most Windless in Australia
Mount Stuart (Defence), QLD
Calm
28°
Hottest in Australia
Boulia Airport, QLD
6 kn W
41°
Coldest in Australia
Mount Hotham, VIC
6 kn S
10°
Wettest in Australia
Bourke, NSW
29.4 mm