MoorPilot
Harbours Sign up Sign in

Choose a harbour

Loading harbours…

Marstrand

Marstrand, Västra Götaland

Home All harbours

Harbour status

watch — keep an eye on it; a check is worth considering

Saturday 08:00, west (ponente) 34 kn. This harbour is open to west (ponente).

We read the forecast for this harbour and cross it with our model — the real exposure of the basin, and the risk to a boat already moored inside.

Tramontana Grecale Levante Scirocco Ostro Libeccio Ponente Maestrale sheltered exposed

On the water now

Gust

34 kn

Gale

Direction

265° W

Wave

— m

Peak gust, day by day

Sat 5 Sept · peak gust 34 kn · W (ponente) · Gale

This harbour's shape

Our model keeps reading the harbour. If it is open to the weather that is coming, we say watch or alert.

These forecasts are for alerts on boats already moored. Sea conditions outside the harbour differ.

Next 72 hours

Hours when a boat already in might need you.

  • watch — keep an eye on it; a check is worth considering west (ponente) · 34 kn
  • watch — keep an eye on it; a check is worth considering south (ostro) · 31 kn

Saturday 08:00 — gusts to 34 kn from a direction this harbour lets in. We'll email you.

Next 48 hours

Arrows show the peak gust for that day or hour, coloured on the Beaufort scale.

  1. 32 1.5 m
  2. 32 1.5 m
  3. 32 1.6 m
  4. 32 1.6 m
  5. 34 1.7 m
  6. 32 1.7 m
  7. 33 1.7 m
  8. 29 1.6 m
  9. 25 1.6 m
  10. 25 1.6 m
  11. 25 1.5 m
  12. 23 1.5 m
  13. 21 1.5 m
  14. 19 1.5 m
  15. 14 1.5 m
  16. Sun 16 1.5 m
  17. 15 1.4 m
  18. 11 1.4 m
  19. 19 1.3 m
  20. 19 1.3 m
  21. 18 1.3 m
  22. 18 1.3 m
  23. 18 1.3 m
  24. 17 1.3 m
  25. 18 1.3 m
  26. 17 1.2 m
  27. 18 1.2 m
  28. 19 1.2 m
  29. 19 1.2 m
  30. 18 1.2 m
  31. 20 1.3 m
  32. 21 1.3 m
  33. 23 1.4 m
  34. 26 1.4 m
  35. 27 1.5 m
  36. 26 1.5 m
  37. 25 1.4 m
  38. 24 1.3 m
  39. 20 1.2 m
  40. Mon 16 1.1 m
  41. 18 1.0 m
  42. 21 1.0 m
  43. 23 0.9 m
  44. 23 0.9 m
  45. 21 0.8 m
  46. 26 0.8 m
  47. 22 0.9 m
  48. 18 0.9 m
  1. watch
  2. watch
  3. watch
  4. watch
  5. watch
  6. watch
  7. watch
  8. calm
  9. calm
  10. calm
  11. calm
  12. calm
  13. calm
  14. calm
  15. calm
  16. calm
  17. calm
  18. calm
  19. calm
  20. calm
  21. calm
  22. calm
  23. calm
  24. calm
  25. calm
  26. calm
  27. calm
  28. calm
  29. calm
  30. calm
  31. calm
  32. calm
  33. calm
  34. calm
  35. calm
  36. calm
  37. calm
  38. calm
  39. calm
  40. calm
  41. calm
  42. calm
  43. calm
  44. calm
  45. calm
  46. calm
  47. calm
  48. calm

Forecast · 3 days

Saturday 5 Sept

Rain

16°14°

20 kn gust 34

Gale

· west (ponente)

waves 1.7 m

Exposed

Sunday 6 Sept

Rain

17°15°

18 kn gust 27

Strong breeze

· west (ponente)

waves 1.5 m

Sheltered

Monday 7 Sept

Rain

18°16°

15 kn gust 31

Near gale

· south (ostro)

waves 1.1 m

Exposed

Trend · days 4–7

Not a forecast. Days 4–7, when the harbour might ask you to go down.

  • south (ostro) · Strong breeze

    15 kn gust 27 ·

    Rain · 17°/15° · waves 1.1 m

  • south-east (scirocco) · Fresh breeze

    6 kn gust 19 ·

    Rain · 17°/12° · waves 0.9 m

  • north-west (maestrale) · Fresh breeze

    7 kn gust 21 ·

    Rain · 15°/12° · waves 0.4 m

  • west (ponente) · Fresh breeze

    4 kn gust 22 ·

    Rain · 16°/11° · waves 0.6 m

Issued .

MoorPilot does not replace checking your boat in person.

Track record

DateForecastMeasured
2026-09-05 36 kn 34 kn

Join

We'll email you a watch or an alert when this harbour is open to the weather that is coming.

Join MoorPilot

Already have an account? Sign in.