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BoM Siam Marine Weather Forecast

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Forecast for Friday, 11 September
Weather: Partly cloudy.
Winds: East to northeasterly 10 to 15 knots.
Seas: Below 1 metre.
Swell: Southwesterly 3 metres.
Forecast for Saturday, 12 September
Weather: Mostly sunny.
Winds: Northeasterly 10 to 15 knots turning northerly during the day. Winds reaching up to 20 knots inshore in the late evening.
Seas: Below 1 metre.
Swell: Southwesterly 2 to 3 metres.
Forecast for Sunday, 13 September
Weather: Partly cloudy. 95% chance of showers. The chance of a thunderstorm in the early morning.
Winds: Northerly 15 to 20 knots turning westerly early in the morning.
Seas: Around 1 metre, increasing to 1 to 1.5 metres during the morning.
Swell: Southwesterly 2 metres.
Forecast for Monday, 14 September
Weather: Partly cloudy.
Winds: Westerly 15 to 20 knots turning south to southwesterly during the evening.
Seas: 1 to 1.5 metres.
Swell: Southwesterly 2 to 2.5 metres.

Forecast for Friday, 11 September
Weather: Mostly clear.
Winds: Northeasterly 10 to 15 knots, reaching up to 20 knots offshore.
Seas: Around 1 metre, increasing to 1 to 1.5 metres offshore.
Swell: Southwesterly 2 to 2.5 metres.
Forecast for Saturday, 12 September
Weather: Mostly sunny day. The chance of a thunderstorm in the evening, with possible squalls inshore.
Winds: Northeasterly 15 to 20 knots turning northerly early in the morning.
Seas: 1 to 1.5 metres, decreasing below 1 metre during the afternoon.
Swell: Southwesterly 1.5 to 2.5 metres.
Forecast for Sunday, 13 September
Weather: The chance of a thunderstorm in the early morning. Mostly sunny day.
Winds: Southwesterly 15 to 25 knots becoming variable about 10 knots in the late afternoon.
Seas: 1 to 1.5 metres, decreasing below 1 metre during the morning.
Swell: Southwesterly 1.5 to 2 metres.
Forecast for Monday, 14 September
Weather: The chance of a thunderstorm in the morning. Mostly sunny day.
Winds: Variable about 10 knots becoming southeasterly 15 to 20 knots during the afternoon.
Seas: Around 1 metre.
Swell: Southwesterly 1.5 to 2 metres.

Forecast for Friday, 11 September
Weather: Mostly clear.
Winds: East to northeasterly below 10 knots.
Seas: Below 0.5 metres.
Swell: West to southwesterly below 0.5 metres.
Forecast for Saturday, 12 September
Weather: Sunny.
Winds: Northeasterly about 10 knots increasing to 10 to 15 knots in the late evening.
Seas: Below 1 metre.
Swell: West to southwesterly below 0.5 metres.
Forecast for Sunday, 13 September
Weather: Partly cloudy. 80% chance of showers. The chance of a thunderstorm in the morning.
Winds: Northerly 15 to 20 knots turning westerly 10 to 15 knots in the middle of the day.
Seas: Around 1 metre, increasing to 1 to 1.5 metres during the morning, then decreasing to 1 metre during the afternoon.
Swell: West to southwesterly below 0.5 metres.
Forecast for Monday, 14 September
Weather: Cloudy.
Winds: Westerly 10 to 15 knots turning southwesterly during the afternoon.
Seas: Below 1 metre.
Swell: South to southwesterly below 0.5 metres.

Forecast for Friday, 11 September
Weather: Mostly clear.
Winds: Easterly about 10 knots.
Seas: Below 1 metre.
Swell: West to southwesterly below 1 metre, increasing to 1 to 1.5 metres through the Backstairs Passage.
Forecast for Saturday, 12 September
Weather: Mostly sunny.
Winds: Northeasterly about 10 knots increasing to 10 to 15 knots in the early afternoon.
Seas: Below 1 metre.
Swell: West to southwesterly around 1 metre.
Forecast for Sunday, 13 September
Weather: Partly cloudy. 95% chance of showers. The chance of a thunderstorm in the morning.
Winds: Northerly 15 to 20 knots turning westerly in the late morning.
Seas: Around 1 metre, increasing to 1 to 1.5 metres during the morning.
Swell: West to southwesterly around 1 metre.
Forecast for Monday, 14 September
Weather: Partly cloudy.
Winds: Westerly 15 to 20 knots turning southwesterly 10 to 15 knots during the evening.
Seas: Around 1 metre.
Swell: West to southwesterly around 1 metre, increasing to 1 to 1.5 metres during the afternoon.

Forecast for Friday, 11 September
Weather: Mostly clear.
Winds: Easterly 10 to 15 knots.
Seas: Below 0.5 metres, increasing to below 1 metre south of Beachport.
Swell: Southwesterly 4 metres.
Forecast for Saturday, 12 September
Weather: Sunny.
Winds: Northeasterly 10 to 15 knots turning northerly during the morning.
Seas: Below 1 metre.
Swell: Southwesterly 3 to 4 metres, decreasing to 2.5 to 3 metres during the morning.
Forecast for Sunday, 13 September
Weather: Cloudy. 90% chance of showers. The chance of a thunderstorm in the morning and afternoon.
Winds: Northerly 15 to 20 knots turning westerly in the afternoon.
Seas: Below 1 metre, increasing to 1 to 1.5 metres during the morning.
Swell: Southwesterly 2 to 2.5 metres.
Forecast for Monday, 14 September
Weather: Partly cloudy. 70% chance of showers.
Winds: Westerly 15 to 25 knots turning southwesterly 20 to 25 knots during the evening.
Seas: 1 to 1.5 metres, increasing to 1.5 to 2 metres south of Port MacDonnell during the afternoon or evening.
Swell: Southwesterly 2 to 2.5 metres, tending westerly 2.5 to 3 metres during the evening.

Forecast for Friday, 11 September
Weather: Partly cloudy.
Winds: Easterly 10 to 15 knots.
Seas: Below 0.5 metres.
Swell: Southwesterly 2.5 to 3 metres.
Forecast for Saturday, 12 September
Weather: Mostly sunny.
Winds: East to northeasterly 10 to 15 knots turning northerly during the morning.
Seas: Below 1 metre.
Swell: Southwesterly 2 to 3 metres, decreasing to 2 metres during the afternoon.
Forecast for Sunday, 13 September
Weather: Partly cloudy. 90% chance of showers. The chance of a thunderstorm in the early morning.
Winds: Northerly 15 to 20 knots turning westerly early in the morning.
Seas: Below 1 metre, increasing to 1 to 1.5 metres during the morning.
Swell: Southwesterly 2 metres.
Forecast for Monday, 14 September
Weather: Partly cloudy.
Winds: Westerly 10 to 15 knots turning south to southwesterly 15 to 20 knots during the afternoon.
Seas: Around 1 metre.
Swell: Southwesterly 2 to 2.5 metres.

Forecast for Friday, 11 September
Weather: Mostly clear.
Winds: East to northeasterly 10 to 15 knots.
Seas: Below 1 metre.
Swell: Southwesterly 3 metres.
Forecast for Saturday, 12 September
Weather: Mostly sunny.
Winds: Northeasterly about 10 knots increasing to 10 to 15 knots in the morning. Winds reaching up to 20 knots west of Kangaroo Island in the late evening.
Seas: Around 1 metre.
Swell: Southwesterly 2.5 to 3 metres.
Forecast for Sunday, 13 September
Weather: Partly cloudy. 95% chance of showers. The chance of a thunderstorm in the morning.
Winds: Northerly 15 to 20 knots turning westerly during the morning.
Seas: 1 to 1.5 metres.
Swell: Southwesterly 2 to 2.5 metres.
Forecast for Monday, 14 September
Weather: Partly cloudy. 50% chance of showers.
Winds: Westerly 15 to 20 knots turning southwesterly during the afternoon.
Seas: 1 to 1.5 metres.
Swell: Southwesterly 2 to 3 metres.

Forecast for Friday, 11 September
Weather: Mostly clear.
Winds: Variable about 10 knots.
Seas: Below 0.5 metres.
Swell: South to southwesterly around 1 metre, increasing to 1 to 2 metres south of Cowell to Wallaroo.
Forecast for Saturday, 12 September
Weather: Mostly sunny.
Winds: Northeasterly 10 to 15 knots turning northerly in the late evening. Winds reaching up to 20 knots near the Yorke Peninsula coast in the late evening.
Seas: Below 1 metre.
Swell: South to southwesterly 1 to 2 metres, decreasing to 1 to 1.5 metres during the morning.
Forecast for Sunday, 13 September
Weather: Partly cloudy. 80% chance of showers south of Port Neill to Port Victoria, 50% chance elsewhere. The chance of a thunderstorm in the morning.
Winds: Northerly 15 to 20 knots shifting west to southwesterly in the late morning.
Seas: Around 1 metre, increasing to 1 to 1.5 metres during the morning.
Swell: South to southwesterly below 1 metre, increasing to 1 to 1.5 metres south of Cowell to Wallaroo.
Forecast for Monday, 14 September
Weather: Partly cloudy.
Winds: Westerly 10 to 15 knots turning south to southwesterly 15 to 20 knots during the day.
Seas: Around 1 metre.
Swell: South to southwesterly around 1 metre.

Forecast for Friday, 11 September
Weather: Mostly clear.
Winds: Easterly below 10 knots.
Seas: Below 0.5 metres.
Swell: Southwesterly 3 metres.
Forecast for Saturday, 12 September
Weather: Sunny.
Winds: Northeasterly about 10 knots increasing to 10 to 15 knots in the morning.
Seas: Below 1 metre.
Swell: Southwesterly 2 to 3 metres.
Forecast for Sunday, 13 September
Weather: Partly cloudy. 95% chance of showers. The chance of a thunderstorm in the morning and afternoon.
Winds: North to northeasterly 15 to 20 knots shifting westerly in the middle of the day.
Seas: Below 1 metre, increasing to 1 to 1.5 metres during the morning.
Swell: Southwesterly 2 to 2.5 metres.
Forecast for Monday, 14 September
Weather: Partly cloudy. 50% chance of showers.
Winds: Westerly 15 to 20 knots turning southwesterly during the evening.
Seas: Around 1 metre, increasing to 1 to 1.5 metres offshore.
Swell: Southwesterly 2 to 2.5 metres.

Forecast for Friday, 11 September
Weather: Partly cloudy.
Winds: Easterly 10 to 15 knots.
Seas: Below 1 metre.
Swell: Southwesterly 2.5 metres.
Forecast for Saturday, 12 September
Weather: Mostly sunny day. The chance of a thunderstorm at night.
Winds: Northeasterly 10 to 15 knots turning northerly in the morning.
Seas: Below 1 metre.
Swell: Southwesterly 2 to 2.5 metres.
Forecast for Sunday, 13 September
Weather: Partly cloudy. 60% chance of showers in the early morning. The chance of a thunderstorm in the early morning.
Winds: North to northwesterly 15 to 20 knots shifting southwesterly 10 to 15 knots early in the morning.
Seas: Around 1 metre.
Swell: Southwesterly 1.5 to 2 metres.
Forecast for Monday, 14 September
Weather: Sunny.
Winds: West to southwesterly about 10 knots tending south to southwesterly 10 to 15 knots during the afternoon.
Seas: Below 1 metre.
Swell: Southwesterly 2 metres.
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