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BoM Mount Arthur Marine Weather Forecast

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Forecast for Sunday, 13 September
Weather: Mostly clear.
Winds: Northeasterly 15 to 20 knots turning northerly in the late afternoon. Winds reaching up to 25 knots offshore in the evening.
Seas: 1 to 1.5 metres, increasing to 1.5 to 2 metres offshore.
Swell: Southerly 1.5 metres.
Forecast for Monday, 14 September
Weather: Partly cloudy.
Winds: Northerly 15 to 20 knots.
Seas: 1 to 2 metres.
Swell: Southerly 1 to 1.5 metres, decreasing to around 1 metre during the morning. Northeasterly around 1 metre inshore, increasing to 1 to 1.5 metres offshore north of Moruya Heads during the morning.
Forecast for Tuesday, 15 September
Weather: Cloudy. 95% chance of showers.
Winds: Southerly 15 to 25 knots increasing to 20 to 30 knots in the early afternoon then tending southwesterly 25 to 30 knots in the late evening.
Seas: Below 1 metre, increasing to 1 to 2 metres during the afternoon, increasing to 2.5 to 3 metres offshore by early evening.
Swell: Southerly around 1 metre, increasing to 1.5 to 2 metres during the afternoon. Northeasterly 1 to 1.5 metres, decreasing to around 1 metre around midday.
Forecast for Wednesday, 16 September
Weather: Partly cloudy. 60% chance of showers.
Winds: South to southwesterly 25 to 35 knots.
Seas: 2.5 to 3 metres.
Swell: Southerly 2 to 3 metres.

Forecast for Sunday, 13 September
Weather: Partly cloudy.
Winds: East to southeasterly about 10 knots.
Seas: Below 1 metre.
Swell: Southeasterly 1.5 metres.
Forecast for Monday, 14 September
Weather: Mostly sunny.
Winds: Variable about 10 knots, reaching up to 20 knots south of Cape Byron in the evening.
Seas: Below 0.5 metres, increasing to around 1 metre during the afternoon.
Swell: Southeasterly 1 to 1.5 metres.
Forecast for Tuesday, 15 September
Weather: Sunny.
Winds: Northerly 15 to 25 knots.
Seas: Around 1 metre, increasing to 1 to 2 metres around midday.
Swell: South to southeasterly around 1 metre.
Forecast for Wednesday, 16 September
Weather: Partly cloudy. 70% chance of showers. The chance of a thunderstorm in the morning.
Winds: Northerly 15 to 20 knots shifting southerly 20 to 30 knots during the morning.
Seas: 1.5 to 2 metres, increasing to 2 to 3 metres during the morning.
Swell: Southerly around 1 metre, increasing to 2 to 4 metres during the afternoon.

Forecast for Sunday, 13 September
Weather: Clear.
Winds: Northeasterly 10 to 15 knots.
Seas: Below 1 metre.
Swell: Southerly 1.5 metres inshore, increasing to 1.5 to 2 metres offshore south of Coffs Harbour.
Forecast for Monday, 14 September
Weather: Sunny.
Winds: Northerly 15 to 20 knots, reaching up to 25 knots inshore during the afternoon and evening.
Seas: Around 1 metre, increasing to 1 to 2 metres around midday.
Swell: South to southeasterly 1 to 1.5 metres, decreasing to around 1 metre later in the evening.
Forecast for Tuesday, 15 September
Weather: Sunny day. The chance of a thunderstorm offshore south of Coffs Harbour at night.
Winds: Northerly 15 to 25 knots tending northwesterly 15 to 20 knots in the late evening.
Seas: 1 to 1.5 metres, increasing to 1.5 to 2 metres offshore south of Coffs Harbour.
Swell: Southerly around 1 metre.
Forecast for Wednesday, 16 September
Weather: Partly cloudy. 80% chance of showers. The chance of a thunderstorm in the morning.
Winds: Southwesterly 20 to 30 knots turning southerly 25 to 30 knots during the morning.
Seas: 1 to 1.5 metres, increasing to 2 to 3 metres during the morning.
Swell: Southerly around 1 metre, increasing to 2 to 3 metres during the morning.

Forecast for Sunday, 13 September
Weather: Mostly clear.
Winds: Northerly 15 to 20 knots, reaching up to 25 knots offshore north of Merimbula in the evening.
Seas: 1 to 1.5 metres, increasing to 1 to 2 metres by early evening.
Swell: Southerly 1.5 metres.
Forecast for Monday, 14 September
Weather: Partly cloudy.
Winds: Northerly 15 to 20 knots shifting south to southwesterly in the evening.
Seas: 1 to 1.5 metres, increasing to 1 to 2 metres offshore north of Merimbula.
Swell: Southerly 1 to 1.5 metres, decreasing to around 1 metre during the morning. Northeasterly 1 to 1.5 metres.
Forecast for Tuesday, 15 September
Weather: Cloudy. 90% chance of showers, with possible small hail south of Green Cape in the evening. The chance of a thunderstorm offshore south of Green Cape at night.
Winds: South to southwesterly 15 to 25 knots becoming southwesterly 20 to 30 knots in the middle of the day then increasing to 25 to 35 knots in the late afternoon.
Seas: 1 to 1.5 metres, increasing to 2 to 3 metres around midday.
Swell: Southerly below 1 metre, increasing to 1 to 1.5 metres during the morning, then tending south to southwesterly 1.5 to 2.5 metres during the afternoon. Northeasterly 1 to 1.5 metres, decreasing to around 1 metre during the morning.
Forecast for Wednesday, 16 September
Weather: Partly cloudy. 70% chance of showers. The chance of a thunderstorm in the morning.
Winds: Southwesterly 25 to 35 knots.
Seas: 2.5 to 3 metres.
Swell: Southwesterly 1.5 to 2.5 metres, tending southerly 1.5 to 2.5 metres during the morning.

Forecast for Sunday, 13 September
Weather: Mostly clear.
Winds: Northeasterly 15 to 20 knots, reaching up to 25 knots offshore south of Port Stephens in the evening. Winds turning northerly in the late evening.
Seas: 1 to 1.5 metres, increasing to 1 to 2 metres offshore south of Port Stephens.
Swell: Southerly 1.5 to 2 metres.
Forecast for Monday, 14 September
Weather: Sunny.
Winds: Northerly 15 to 25 knots.
Seas: 1 to 2 metres.
Swell: Southerly 1 to 1.5 metres, decreasing to around 1 metre later in the evening.
Forecast for Tuesday, 15 September
Weather: Sunny day. 60% chance of showers in the evening. The chance of a thunderstorm offshore in the evening.
Winds: Northerly 20 to 30 knots tending southeast to southwesterly 15 to 25 knots in the early morning then tending southerly 20 to 30 knots in the late evening.
Seas: 1.5 to 2.5 metres, decreasing below 1.5 metres during the morning, then decreasing to 1 metre later in the evening.
Swell: Southerly around 1 metre. Northeasterly around 1 metre.
Forecast for Wednesday, 16 September
Weather: Cloudy. 90% chance of showers. The chance of a thunderstorm in the afternoon and evening.
Winds: South to southwesterly 25 to 30 knots.
Seas: 2 to 3 metres.
Swell: Southerly 2 to 3 metres, increasing to 3 to 4 metres during the afternoon or evening.

Forecast for Sunday, 13 September
Weather: Mostly clear.
Winds: Northeasterly 15 to 20 knots turning northerly in the evening. Winds reaching up to 25 knots offshore north of Port Kembla in the evening.
Seas: 1 to 1.5 metres, increasing to 1.5 to 2 metres offshore north of Port Kembla by early evening.
Swell: Southerly 1 to 1.5 metres.
Forecast for Monday, 14 September
Weather: Partly cloudy.
Winds: Northerly 15 to 20 knots, reaching up to 25 knots offshore north of Port Kembla early in the morning and again in the late evening.
Seas: 1 to 1.5 metres, increasing to 1 to 2 metres north of Point Perpendicular.
Swell: Southerly 1 to 1.5 metres, decreasing to around 1 metre during the morning. Northeasterly below 1 metre inshore, increasing to 1 to 1.5 metres offshore south of Port Kembla.
Forecast for Tuesday, 15 September
Weather: Becoming cloudy. 90% chance of showers.
Winds: North to northwesterly 15 to 20 knots tending southeast to southwesterly 15 to 25 knots in the early morning then tending southerly 20 to 30 knots in the evening.
Seas: 1 to 1.5 metres, decreasing to 1 metre during the morning, then increasing to 1.5 to 2.5 metres by early evening.
Swell: Southerly around 1 metre, increasing to 1 to 1.5 metres by early evening. Northeasterly 1 to 1.5 metres, decreasing to around 1 metre around midday.
Forecast for Wednesday, 16 September
Weather: Partly cloudy. 70% chance of showers.
Winds: South to southwesterly 25 to 30 knots.
Seas: 2.5 to 3 metres.
Swell: Southerly 1.5 to 2 metres, increasing to 2 to 3 metres during the morning.

Forecast for Sunday, 13 September
Weather: Clear.
Winds: Northeasterly 15 to 20 knots turning northerly in the late evening.
Seas: Around 1 metre, increasing to 1 to 1.5 metres south of Crowdy Head.
Swell: Southerly 1.5 to 2 metres.
Forecast for Monday, 14 September
Weather: Sunny.
Winds: Northerly 15 to 25 knots.
Seas: 1 to 1.5 metres, increasing to 1.5 to 2 metres during the morning.
Swell: Southerly 1.5 metres, decreasing to around 1 metre later in the evening.
Forecast for Tuesday, 15 September
Weather: Sunny day. The chance of a thunderstorm in the evening.
Winds: Northerly 15 to 25 knots shifting south to southwesterly 15 to 20 knots in the evening.
Seas: 1 to 2 metres, decreasing to 1 to 1.5 metres during the afternoon.
Swell: Southerly around 1 metre. North to northeasterly around 1 metre.
Forecast for Wednesday, 16 September
Weather: Cloudy. 90% chance of showers. The chance of a thunderstorm in the morning and afternoon.
Winds: South to southwesterly 20 to 30 knots.
Seas: 1.5 metres, increasing to 2.5 to 3 metres during the morning.
Swell: Southerly around 1 metre, increasing to 2 to 4 metres during the morning.

Forecast for Sunday, 13 September
Weather: Mostly clear.
Winds: Northeasterly 15 to 20 knots, reaching up to 25 knots offshore in the evening. Winds turning northerly in the late evening.
Seas: 1 to 1.5 metres, increasing to 1.5 to 2 metres by early evening.
Swell: Southerly 1 to 1.5 metres.
Forecast for Monday, 14 September
Weather: Partly cloudy.
Winds: Northerly 15 to 20 knots, reaching up to 25 knots offshore during the morning and again in the late evening.
Seas: 1 to 2 metres.
Swell: Southerly 1 to 1.5 metres, decreasing to around 1 metre during the morning.
Forecast for Tuesday, 15 September
Weather: Sunny day. 70% chance of showers in the evening.
Winds: Northwest to northeasterly 15 to 20 knots tending southeast to southwesterly 15 to 25 knots in the morning then tending southerly 25 to 30 knots in the late evening.
Seas: 1 to 2 metres, decreasing to 1 metre during the morning, then increasing to 1.5 metres later in the evening.
Swell: Southerly around 1 metre inshore, increasing to 1 to 1.5 metres offshore later in the evening. Northeasterly around 1 metre, increasing to 1 to 1.5 metres during the morning, then decreasing to around 1 metre around midday.
Forecast for Wednesday, 16 September
Weather: Partly cloudy. 80% chance of showers. The chance of a thunderstorm in the afternoon and evening.
Winds: Southerly 25 to 30 knots.
Seas: 2 to 3 metres.
Swell: Southerly 1.5 to 2 metres, increasing to 2 to 3 metres during the morning.
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