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BoM Tumby Bay Marine Weather Forecast

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Forecast for Sunday, 9 August
Weather: Cloudy. Near 100% chance of rain. The chance of a thunderstorm.
Winds: Southwesterly 25 to 35 knots.
Seas: 2.5 to 3 metres.
Swell: Southwesterly 3 to 5 metres.
Forecast for Monday, 10 August
Weather: Cloudy. 80% chance of showers.
Winds: Southwesterly 20 to 30 knots, reaching up to 35 knots in the west early in the morning. Winds turning west to northwesterly 15 to 20 knots in the early afternoon.
Seas: 2 to 3 metres, decreasing to 1 to 2 metres around midday.
Swell: Southwesterly 4 to 6 metres, decreasing to 4 metres by early evening.
Forecast for Tuesday, 11 August
Weather: Cloudy. Near 100% chance of showers. The chance of a thunderstorm in the late morning and afternoon.
Winds: Northwesterly 20 to 25 knots increasing to 20 to 30 knots in the morning then tending northwest to southwesterly in the middle of the day.
Seas: 1 to 2 metres, increasing to 2 to 3 metres during the morning.
Swell: Southwesterly 4 metres, decreasing to 3 metres during the morning, then increasing to 3 to 4 metres by early evening.
Forecast for Wednesday, 12 August
Weather: Cloudy. 80% chance of showers.
Winds: Southwesterly 20 to 30 knots decreasing to 15 to 20 knots during the morning.
Seas: 1.5 to 2.5 metres, decreasing to 1.5 metres during the afternoon or evening.
Swell: Southwesterly 4 to 5 metres.

Forecast for Sunday, 9 August
Weather: Partly cloudy. 70% chance of showers.
Winds: Southwesterly 25 to 30 knots.
Seas: 3 metres.
Swell: Southwesterly 3 to 5 metres.
Forecast for Monday, 10 August
Weather: Cloudy. 50% chance of showers.
Winds: Southwesterly 15 to 25 knots, reaching up to 30 knots early in the morning. Winds turning northwesterly 15 to 20 knots during the morning.
Seas: 2 to 3 metres, decreasing to 1 to 2 metres during the morning.
Swell: Southwesterly 3 to 5 metres, decreasing to 2.5 to 3 metres later in the evening. Southerly below 0.5 metres, increasing to 1 to 1.5 metres during the morning, then decreasing to around 1 metre by early evening.
Forecast for Tuesday, 11 August
Weather: Cloudy. Near 100% chance of showers.
Winds: North to northwesterly 15 to 25 knots shifting southwesterly 25 to 30 knots during the day.
Seas: 1 to 1.5 metres, increasing to 1.5 to 2.5 metres during the morning.
Swell: Southwesterly 2.5 to 3 metres.
Forecast for Wednesday, 12 August
Weather: Cloudy. 50% chance of showers.
Winds: Southwesterly 15 to 25 knots decreasing to about 10 knots during the evening.
Seas: 1.5 to 2.5 metres, decreasing to 1 metre during the afternoon or evening.
Swell: Southwesterly 3 to 4 metres.

Forecast for Sunday, 9 August
Weather: Cloudy. Near 100% chance of rain. The chance of a thunderstorm south of Port Vincent to Brighton later this evening.
Winds: Northwesterly 15 to 20 knots turning southwesterly in the evening. Winds reaching up to 25 knots near the Yorke Peninsula coast in the late evening.
Seas: 1 to 1.5 metres.
Swell: South to southwesterly below 1 metre.
Forecast for Monday, 10 August
Weather: Partly cloudy. 90% chance of showers.
Winds: Southwesterly 15 to 25 knots, reaching up to 30 knots during the morning. Winds turning northwesterly 10 to 15 knots in the evening.
Seas: 1.5 to 2.5 metres, decreasing to 1 metre by early evening.
Swell: South to southwesterly below 1 metre.
Forecast for Tuesday, 11 August
Weather: Partly cloudy. 80% chance of showers.
Winds: North to northwesterly 15 to 20 knots tending west to northwesterly in the evening.
Seas: Around 1 metre, increasing to 1 to 1.5 metres during the morning.
Swell: South to southwesterly below 1 metre.
Forecast for Wednesday, 12 August
Weather: Partly cloudy. 80% chance of showers.
Winds: West to southwesterly 15 to 25 knots.
Seas: 1 to 2 metres, decreasing to 1 metre during the afternoon or evening.
Swell: South to southwesterly below 1 metre.

Forecast for Sunday, 9 August
Weather: Cloudy. Near 100% chance of rain. The chance of a thunderstorm.
Winds: North to northwesterly 10 to 15 knots shifting southerly in the late afternoon then tending southwesterly 15 to 20 knots in the late evening.
Seas: 1 to 1.5 metres.
Swell: West to southwesterly 1 to 2 metres.
Forecast for Monday, 10 August
Weather: Cloudy. 80% chance of showers.
Winds: Southwesterly 15 to 25 knots, reaching up to 30 knots early in the morning. Winds turning west to northwesterly 10 to 15 knots during the afternoon and evening.
Seas: 1.5 to 2.5 metres, decreasing to 1 metre by early evening.
Swell: West to southwesterly 1.5 to 2.5 metres.
Forecast for Tuesday, 11 August
Weather: Partly cloudy. 95% chance of showers. The chance of a thunderstorm in the late afternoon and evening.
Winds: Northwesterly 15 to 25 knots turning west to southwesterly 15 to 20 knots in the evening.
Seas: Around 1 metre, increasing to 1 to 2 metres during the morning.
Swell: West to southwesterly 1 to 2 metres, decreasing to 1 to 1.5 metres by early evening.
Forecast for Wednesday, 12 August
Weather: Cloudy. 70% chance of showers.
Winds: West to southwesterly 15 to 25 knots.
Seas: 1 to 2 metres.
Swell: West to southwesterly 1 to 1.5 metres, increasing to 1.5 to 2.5 metres during the morning.

Forecast for Sunday, 9 August
Weather: Cloudy. 80% chance of showers. The chance of a thunderstorm.
Winds: Variable about 10 knots becoming southerly 15 to 20 knots in the evening. Winds reaching up to 30 knots offshore in the late evening.
Seas: 1 to 1.5 metres, decreasing below 1 metre by early evening.
Swell: Southwesterly 2.5 to 3 metres. East to southeasterly below 1 metre, increasing to around 1 metre south of Port MacDonnell.
Forecast for Monday, 10 August
Weather: Cloudy. 90% chance of showers.
Winds: Southerly 15 to 25 knots, reaching up to 30 knots north of Beachport during the morning. Winds turning west to southwesterly 15 to 20 knots in the late morning and early afternoon.
Seas: 1 to 1.5 metres, increasing to 1.5 to 2 metres during the morning, then decreasing to 1 to 1.5 metres by early evening.
Swell: Southwesterly 3 metres, increasing to 3 to 4 metres during the morning.
Forecast for Tuesday, 11 August
Weather: Cloudy. Near 100% chance of showers. The chance of a thunderstorm in the late afternoon and evening.
Winds: Northwesterly 15 to 25 knots increasing to 20 to 30 knots in the middle of the day then decreasing to 20 to 25 knots in the early afternoon.
Seas: 1 to 1.5 metres, increasing to 1.5 to 2 metres during the morning.
Swell: Southwesterly 3 to 4 metres, decreasing to 3 metres during the morning, then tending west to southwesterly 3 to 4 metres by early evening.
Forecast for Wednesday, 12 August
Weather: Cloudy. 90% chance of showers.
Winds: West to southwesterly 20 to 30 knots.
Seas: 1.5 to 2 metres.
Swell: Southwesterly 3 to 5 metres.

Forecast for Sunday, 9 August
Weather: Cloudy. Near 100% chance of rain. The chance of a thunderstorm.
Winds: Southwesterly 30 to 35 knots.
Seas: 3 metres, increasing to 3 to 4 metres offshore.
Swell: Southwesterly 3 to 4 metres, increasing to 4 to 6 metres by early evening.
Forecast for Monday, 10 August
Weather: Cloudy. 80% chance of showers.
Winds: Southwesterly 25 to 30 knots, reaching up to 35 knots offshore early in the morning. Winds turning northwesterly 15 to 20 knots during the afternoon and evening.
Seas: 2.5 to 4 metres, decreasing below 2 metres during the morning, then decreasing to 1 metre during the afternoon.
Swell: Southwesterly 5 to 6 metres, decreasing to 4 metres during the afternoon.
Forecast for Tuesday, 11 August
Weather: Cloudy. Near 100% chance of showers. The chance of a thunderstorm in the late morning and afternoon.
Winds: Northwesterly 20 to 25 knots increasing to 30 knots before turning southwesterly 20 to 25 knots during the afternoon and evening.
Seas: 1.5 to 2.5 metres.
Swell: Southwesterly 3 to 4 metres, decreasing to 2.5 to 3 metres during the morning, then increasing to 3 to 4 metres by early evening.
Forecast for Wednesday, 12 August
Weather: Cloudy. 70% chance of showers.
Winds: Southwesterly 20 to 30 knots decreasing to 10 to 15 knots during the evening.
Seas: 2 to 2.5 metres, decreasing to 1 to 1.5 metres during the morning.
Swell: Southwesterly 4 to 5 metres.

Forecast for Sunday, 9 August
Weather: Cloudy. 95% chance of rain. The chance of a thunderstorm.
Winds: South to southwesterly 15 to 25 knots, reaching up to 30 knots in the evening.
Seas: 1 to 2 metres, increasing to 2 to 3 metres later in the evening.
Swell: Southwesterly 2.5 to 3 metres, increasing to 3 to 4 metres west of Kangaroo Island.
Forecast for Monday, 10 August
Weather: Cloudy. 90% chance of showers.
Winds: South to southwesterly 20 to 25 knots, reaching up to 30 knots during the morning. Winds turning west to northwesterly 15 to 20 knots in the afternoon.
Seas: 2 to 3 metres, decreasing to 1 to 2 metres around midday, then decreasing to 1 to 1.5 metres by early evening.
Swell: Southwesterly 3 to 5 metres.
Forecast for Tuesday, 11 August
Weather: Cloudy. Near 100% chance of showers. The chance of a thunderstorm from the late morning.
Winds: Northwesterly 15 to 25 knots increasing to 30 knots before turning southwesterly 20 to 25 knots in the evening.
Seas: 1 to 1.5 metres, increasing to 1.5 to 2.5 metres during the morning.
Swell: Southwesterly 3 to 4 metres, decreasing to 3 metres during the morning, then increasing to 3 to 4 metres by early evening.
Forecast for Wednesday, 12 August
Weather: Cloudy. 80% chance of showers.
Winds: Southwesterly 20 to 30 knots decreasing to 15 to 20 knots during the afternoon.
Seas: 1.5 to 2.5 metres.
Swell: Southwesterly 3 to 5 metres.

Forecast for Sunday, 9 August
Weather: Cloudy. Near 100% chance of rain. The chance of a thunderstorm south of Port Neill to Port Victoria.
Winds: Westerly 25 to 30 knots, reaching up to 35 knots south of Port Neill to Port Victoria in the late afternoon.
Seas: 2 to 3 metres.
Swell: South to southwesterly below 1 metre, increasing to 1 to 1.5 metres south of Cowell to Wallaroo.
Forecast for Monday, 10 August
Weather: Cloudy. 80% chance of showers.
Winds: Southwesterly 15 to 25 knots, reaching up to 30 knots during the morning. Winds turning northwesterly 10 to 15 knots in the evening.
Seas: 2 to 3 metres, decreasing to 1.5 to 2 metres around midday, then decreasing to 1 metre by early evening.
Swell: South to southwesterly 1 to 1.5 metres, increasing to 1.5 to 2.5 metres during the morning.
Forecast for Tuesday, 11 August
Weather: Partly cloudy. 90% chance of showers. The chance of a thunderstorm north of Cowell to Wallaroo at night.
Winds: Northwesterly 15 to 20 knots turning west to southwesterly 20 to 25 knots in the evening.
Seas: Below 1 metre, increasing to 1 to 1.5 metres during the morning.
Swell: South to southwesterly 1 to 2 metres, decreasing to 1 to 1.5 metres during the morning.
Forecast for Wednesday, 12 August
Weather: Partly cloudy. 70% chance of showers.
Winds: Southwesterly 15 to 25 knots turning westerly 10 to 15 knots during the day.
Seas: 1 to 2 metres, decreasing to 1 to 1.5 metres during the afternoon or evening.
Swell: South to southwesterly 1.5 to 2.5 metres.

Forecast for Sunday, 9 August
Weather: Cloudy. 95% chance of rain. The chance of a thunderstorm.
Winds: North to northwesterly 10 to 15 knots shifting south to southwesterly 15 to 20 knots in the evening. Winds reaching up to 30 knots offshore in the late evening.
Seas: Around 1 metre.
Swell: Southwesterly 2 to 3 metres.
Forecast for Monday, 10 August
Weather: Cloudy. 90% chance of showers.
Winds: South to southwesterly 15 to 25 knots, reaching up to 30 knots during the morning. Winds turning westerly 10 to 15 knots in the evening.
Seas: 1.5 to 2.5 metres, decreasing to 1 metre later in the evening.
Swell: Southwesterly 2.5 to 3 metres, increasing to 3 to 4 metres during the morning.
Forecast for Tuesday, 11 August
Weather: Partly cloudy. 95% chance of showers. The chance of a thunderstorm in the evening.
Winds: Northwesterly 15 to 25 knots turning westerly 20 to 25 knots in the late evening.
Seas: Around 1 metre, increasing to 1 to 2 metres during the morning.
Swell: Southwesterly 3 to 4 metres, decreasing to 2.5 to 3 metres during the morning.
Forecast for Wednesday, 12 August
Weather: Cloudy. 90% chance of showers.
Winds: Southwesterly 15 to 25 knots.
Seas: 1.5 to 2 metres.
Swell: Southwesterly 3 metres, increasing to 3 to 5 metres during the morning.

Forecast for Sunday, 9 August
Weather: Cloudy. 95% chance of rain.
Winds: Southwesterly 25 to 30 knots, reaching up to 35 knots south of Streaky Bay during the afternoon and evening.
Seas: 3 metres, increasing to 3 to 4 metres south of Streaky Bay.
Swell: Southwesterly 3 to 4 metres, increasing to 4 to 6 metres by early evening.
Forecast for Monday, 10 August
Weather: Cloudy. 60% chance of showers.
Winds: Southwesterly 20 to 30 knots, reaching up to 35 knots south of Streaky Bay early in the morning. Winds turning northwesterly 15 to 20 knots during the afternoon and evening.
Seas: 2 to 3 metres, decreasing to 1 to 1.5 metres during the morning, then decreasing to 1 metre during the afternoon.
Swell: Southwesterly 4 to 6 metres, decreasing to 4 metres during the afternoon.
Forecast for Tuesday, 11 August
Weather: Partly cloudy. 95% chance of showers. The chance of a thunderstorm south of Streaky Bay in the afternoon and evening.
Winds: North to northwesterly 15 to 25 knots shifting southwesterly 20 to 30 knots during the afternoon and evening.
Seas: 1.5 to 2.5 metres.
Swell: Southwesterly 2.5 to 3 metres, increasing to 2.5 to 4 metres south of Streaky Bay.
Forecast for Wednesday, 12 August
Weather: Cloudy. 70% chance of showers.
Winds: Southwesterly 15 to 25 knots decreasing to 10 to 15 knots during the afternoon.
Seas: 1 to 2 metres, decreasing to 1 metre during the afternoon or evening.
Swell: Southwesterly 3 to 5 metres.
Port Lincoln Airport
▲ N
12 kn SW
· 14 °C
Warnings
Within 100 km of Tumby Bay SA
Severe
State Wide
Marine Thunderstorm Severe Agricultural Flood
View all SA warnings
Temperature
Tumby Bay
14 °C 14 °C 10am 10 °C 7pm
↓ Cooling
Now: 14 °C
Tides
Tumby Bay
11:58am 1.65m 9:16pm 0.44m
↓ Falling
Current: 0.48m
Weather Now for Tumby Bay
Rain.
14 °C
Feels like 10 °C
Wind
12 kn SW
Humidity
90%
Pressure
996 hPa
At Port Lincoln Airport
Nearby Wind
50 km radius
N S W E 12 kn Port Lincoln Airport 13 kn Cummins Aero
Tumby Bay
12 kn SW
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Sun
7:12am rise 5:51pm set
10 h 38 m of daylight
Now: 8:14pm
102 seconds more than yesterday
Moon
4:13amrise 1:51pmset
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Waning Crescent
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