5 day weather forecast for Isle of Man coastal waters
Forecast periods cover 24 hours from 6am each day to 6am on following day. Wind speeds are on Beaufort Scale.
Today
Strong winds.
South or SE 5 to 7, soon veering SW 5 or 6 this morning. Decreasing SW 4 or 5 in the afternoon, then increasing 5 or 6 again in the evening.
Moderate or rough, becoming moderate later this morning.
Heavy rain at first, but clearing this morning.
Moderate or poor at first, but improving good this morning.
Tomorrow
Strong winds until later.
SW 5 or 6, increasing South or SW 5 to 7 later in morning or early afternoon. Little change for the rest of the day, then gradually decreasing 4 or 5 overnight.
Moderate, building moderate or rough, then gradually falling slight or moderate later.
Outbreaks of rain developing.
Good, falling moderate or poor at times in rain.
Friday, 19 September 2025
Nil.
SW 4 or 5, decreasing 3 or 4 during day, becoming Variable later.
Slight or moderate, becoming slight.
Outbreaks of rain, then fair later.
Good, falling moderate or poor at times in rain.
Saturday, 20 September 2025
Strong winds later.
Variable 3 or 4, settling North or NE during day and increasing 4 or 5, then 6 or 7 overnight.
Slight, building moderate or rough later.
Fair, then outbreaks of rain.
Good, falling moderate in rain.
Sunday, 21 September 2025
Strong winds until later.
North or NE 6 or 7, decreasing 4 or 5 later.
Moderate or rough, falling slight or moderate later.
Outbreaks of rain, then fair.
Good, falling moderate in rain.