Swell height, period, direction, wind and tide: surf forecasts can look like a wall of numbers. Learn what each one means, what a good day at The Bay and Cathedral Point usually looks like, and how to plan your sessions like a local.
Every surfer in Imsouane checks the forecast before bed and again at sunrise. Once you understand a few key numbers, you can predict when The Bay will be firing, when Cathedral Point is worth the walk, and when it’s better to take a rest day. Here is a simple guide to reading a surf forecast for Imsouane.
Swell height is the size of the waves out at sea, usually shown in metres or feet. It is not exactly the size of the waves you will surf: The Bay is sheltered, so waves there are often smaller than the forecast number, while more exposed spots like Cathedral get closer to it. As a rough guide, small swells are best for beginners, while bigger swells wake up the point and suit experienced surfers.
The period is the time in seconds between two waves passing the same point. It tells you how much energy the swell has, and it matters as much as the height:
A smaller swell with a long period can produce better waves than a bigger swell with a short period.
Direction shows where the swell comes from. Imsouane’s main swells arrive from the north-west Atlantic, especially from autumn to spring; see our surf season guide. The Bay is protected and needs the swell to wrap around the headland, while Cathedral faces the open ocean and picks up more directions. Watch how each spot reacts to different directions over a few days and you’ll soon learn the patterns.
Wind can make or break a session:
Part of Imsouane’s appeal is that The Bay is relatively sheltered from the dominant north wind, so it often stays surfable when other spots on the coast are blown out.
The tide changes how and where waves break. Most forecasts show tide times and heights. Read our tide guide to see how The Bay and Cathedral react at different stages.
A classic good day in Imsouane combines a medium to long-period north-west swell, light or offshore wind in the morning and a mid tide. For beginners, a small swell and light wind are perfect. When in doubt, ask your surf school: they read these numbers every day.
Forecasts are predictions, not promises. Local effects such as sandbanks, wind direction changes and tide can make the real conditions better or worse than expected. Always check the waves yourself, and if conditions look beyond your level, stay on the beach. Not sure what level you are? Read what’s my surf level?
Don’t hesitate to give us a call. Our friendly local team knows Imsouane inside out and is happy to help you plan your trip.
+212 613 373 911
hello@imsouaneguide.com
