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Boating forecast for St Michaels Mount

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  1. Extremely useful for viewing the forecast at a glance. You can quickly tell when the conditions are likely to better for boating and fishing.
  2. The summaries are useful to assist in understanding the weather patterns as well as planning your day and trips.
  3. The arrows show the direction of the wind. The direction of the wind is from the origin e.g. an easterly wind blows to the west. The dotted line is gust speed of the wind. For most spots you want the wind to be light (0 - 10 kts) for ocean conditions to be comfortable.
  4. The Sea height is the total wave height which includes both swell and chop. This is the most critical variable when looking at this forecast since a big sea height could be hazardous to boats or fishing off rocks etc. Swell refers to the height of the swell. The smaller the better. Chop refers to the height of the ocean chop. The less chop, the more comfortable conditions will be.
  5. The greater the swell period, the more comfortable the conditions are likely to be. It is believed sea sickness is triggered by a swell period around 5-6 seconds. However, the ocean chop can also cause sea sickness, so be aware of that too, especially if sea direction is considerably different to swell direction.
  6. Swell direction is represented by the origin of the swell. A westerly swell is moving to the east.
  7. Sea direction is represented by the origin of the chop. If there is not much chop this is not such a factor. However, you should check this variable if there is substantial chop, since if the swell direction is opposing the sea direction and swell and chop height are over 1 m, conditions could be rough.
  8. SwellMap presents tides as LAT (Lowest Astronomical Tide), which is the height above the lowest tidal water level

Forecast updated at 19:29 Monday 15 January (Europe/London local time)

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Wind Gusts
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Swell Sea Chop
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Swell dir
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Sea dir
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Tides LAT
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Forecast updated at 19:29 Monday 15 January (Europe/London local time)

Slide the table to view all forecast details.
Mon 15 JanRating Summary Sea Swell Chop Period Swell dir Sea dir Wind Gusts
mmms°°ktskts
3h10.70.10.74SSWSW:2937
9h10.40.10.45SWW:2533
15h10.20.10.27SWW:2533
21h10.20.10.210SWW:2633
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Tue 16 JanRating Summary Sea Swell Chop Period Swell dir Sea dir Wind Gusts
mmms°°ktskts
3h10.20.10.116SWW:3039
9h10.20.20.220SWW:3139
15h10.30.20.220SWW:3649
21h10.30.30.215SWNW:3850
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Wed 17 JanRating Summary Sea Swell Chop Period Swell dir Sea dir Wind Gusts
mmms°°ktskts
3h10.30.30.120SWNW:3343
9h10.40.30.222SWNW:2633
15h10.30.30.121SWW:2531
21h10.60.30.520SWW:3850
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Thu 18 JanRating Summary Sea Swell Chop Period Swell dir Sea dir Wind Gusts
mmms°°ktskts
3h10.60.30.511SWW:2025
9h10.50.30.57SWW:1923
15h10.30.20.310SWW:2431
21h10.20.20.210SWNW:2429
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Fri 19 JanRating Summary Sea Swell Chop Period Swell dir Sea dir Wind Gusts
mmms°°ktskts
3h10.20.10.113SWW:2735
9h10.20.10.114SWNW:2633
15h10.20.10.114SWNW:2735
21h10.20.10.115SWNW:2835
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Sat 20 JanRating Summary Sea Swell Chop Period Swell dir Sea dir Wind Gusts
mmms°°ktskts
3h10.20.10.115SNWNW:2431
9h10.10.10.115SNWNW:1619
15h20.10.10.14S--SW:1114
21h20.50.00.54SSWS:2531
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Sun 21 JanRating Summary Sea Swell Chop Period Swell dir Sea dir Wind Gusts
mmms°°ktskts
3h20.30.10.35SWNW:1821
9h20.20.10.24SWNW:1923
15h20.20.10.110SWNW:1417

Forecast updated at 19:29 Monday 15 January (Europe/London local time)

Current sea temperature

No data available

Sunrise and sunset for today

SunriseSunset
08:1816:46