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Surf forecast for Porthtowan

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  1. Extremely useful for viewing the forecast at a glance. You can quickly tell when the surf is likely to be good.
  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 surf spots you want the wind to be light (0 - 10 kts) or in the opposite direction of the swell direction to make good surf conditions
  4. The dotted line is set wave face which is the predicted height of wave face as it breaks. The red line is period. This is the time between each set wave. You can see new swells are coming if this line jumps up, indicating a new pulse, or swell deterioration if the line drops. The swell height is the most important factor for surfing Fun surfable waves are normally in the height range between 0.8 - 2.0 m depending on your surfing abilities. The sea height includes both swell and sea chop. The greater the difference between this and swell height indicates a rougher/choppier sea.
  5. Swell direction is represented by the origin of the swell. A westerly swell is moving to the east.
  6. SwellMap presents tides as LAT (Lowest Astronomical Tide), which is the height above the lowest tidal water level

Forecast updated at 07:27 Sunday 8 December (Europe/London local time)

Slide the graph to view all forecast days.



Loading graphs...
Days
Times
Legend
Wind Gusts
Legend
Wave (sea) Swell Set wave face Period
Legend
Swell dir
Legend
Tides LAT
Times
Days

Forecast updated at 07:27 Sunday 8 December (Europe/London local time)

Slide the table to view all forecast details.
Sun 8 DecRating Summary Swell Wave Set face Period Swell dir Wind Gusts
mmms°ktskts
3h?----------W:2227
9h?----------W:2431
15h?----------W:3039
21h?----------W:3952
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Mon 9 DecRating Summary Swell Wave Set face Period Swell dir Wind Gusts
mmms°ktskts
3h?----------NW:3545
9h?3.0----16--NW:2227
15h?3.3----15--NW:1316
21h?2.5----14--SW:78
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Tue 10 DecRating Summary Swell Wave Set face Period Swell dir Wind Gusts
mmms°ktskts
3h?1.8----13--S:1923
9h?1.1----13--SW:2531
15h?0.1----18--NW:2431
21h?1.5----14--W:1619
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Wed 11 DecRating Summary Swell Wave Set face Period Swell dir Wind Gusts
mmms°ktskts
3h?----------W:1721
9h?----------W:2227
15h?----------W:2531
21h?----------W:1823
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Thu 12 DecRating Summary Swell Wave Set face Period Swell dir Wind Gusts
mmms°ktskts
3h?----------SW:1821
9h?----------SW:3141
15h?----------W:2837
21h?----------W:3241
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Fri 13 DecRating Summary Swell Wave Set face Period Swell dir Wind Gusts
mmms°ktskts
3h?----------W:3547
9h?----------W:3139
15h?----------W:2329
21h?4.3----15--W:2329
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Sat 14 DecRating Summary Swell Wave Set face Period Swell dir Wind Gusts
mmms°ktskts
3h?----------W:2835
9h?4.2----13--S:1721
15h?----------W:3039

Forecast updated at 07:27 Sunday 8 December (Europe/London local time)

Current sea temperature

Porthtowan sea temperature: 11°C

Recommended layers: 5/4 Wetsuit

Sunrise and sunset for today

SunriseSunset
08:1216:13