Minimum downwindable swell/chop size

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tartine
tartine
3 posts
3 posts
23 Sep 2026 2:07am
Hi,
I am starting wingfoiling recently and quickly been driven by the idea of downwinding; but is that possible where I am riding ? This is Baltic sea south of Denmark, there is wind and chop most of the time, but is that enough ? Can you ride even the smallest chop ever ?
beached57
beached57
151 posts
151 posts
23 Sep 2026 3:44am
if you can pump, you can ride flat water. (i can't pump).
Hdip
Hdip
485 posts
485 posts
23 Sep 2026 4:07am
Ask Jon Mann. He's up there somewhere.

www.instagram.com/p/DdhL3SgtrTK/?hl=en
martyj4
martyj4
541 posts
541 posts
23 Sep 2026 6:37am
Tartine, it's great fun. You don't need massive swell. Sizable windchop will be fine. We mess around on waves half a metre face and bigger in the river and you can have a ball. The thing to try and figure out is wave speed, sweet spot on the wave and what your foil capability is. If you're learning, theres a good chance you may be on a bigger foil which may be pretty draggy and develop a lot of lift. If it's draggy and slow, you may struggle to stay on the chop depending on how fast the chop is moving. And as you progress from the top of the swell, to the trough, you'll notice a change in the lift that the foil produces. Bigger learner orientated foils tend to produce heaps of lift, which means when at the top of the wave, you'll be putting heaps of front foot pressure on to keep the foil from breaching. Then if you drop into the trough, that lift reduces a lot, so you may find you nose dive. The thinner profile (faster) foils tend not to produce as much lift so are easier to control on a wave. Get into it as it's great fun but it's got a steep learning curve.
AnyBoard
AnyBoard
NSW
494 posts
NSW, 494 posts
23 Sep 2026 9:19am
If there is wind and fetch then there is great fun to be had.
My opinion on minimum bumps for fun.
In 20 knot average as short as 7k fetch can be fun.
In 15 knots i feel you need 15k of fetch.
In 12 knots i feel you need at least 20k maybe 30k of fetch.
In 10 knots you need big ocean fetch and plenty of skill but can be really fun.

I feel like in 20 to 30k of fetch with 20 knots will be all time fun. More than this in the ocean becomes less about surfing and more about pointing it.

Great bumps can look like nothing to the untrained eye from the shore.
windwaterfoil
windwaterfoil
29 posts
29 posts
23 Sep 2026 11:33am
I am curious about this topic too. We only have ****ty wind swell where I live. 4-5ft max.

For the wind swell riders, in your experience what kind of foil is best suited for these conditions? 10AR ish and turns well or 12+AR that glides well?
scheggia
scheggia
88 posts
88 posts
23 Sep 2026 1:10pm
AnyBoard said..
If there is wind and fetch then there is great fun to be had.
My opinion on minimum bumps for fun.
In 20 knot average as short as 7k fetch can be fun.
In 15 knots i feel you need 15k of fetch.
In 12 knots i feel you need at least 20k maybe 30k of fetch.
In 10 knots you need big ocean fetch and plenty of skill but can be really fun.

I feel like in 20 to 30k of fetch with 20 knots will be all time fun. More than this in the ocean becomes less about surfing and more about pointing it.

Great bumps can look like nothing to the untrained eye from the shore.


Spot on! I would just say that at the beginning that "under 15kts sessions with not a lot of fetch" would look awful, but as soon as you develop the skills that smallish day are lot of fun with the right equipment....



windwaterfoil said..
I am curious about this topic too. We only have ****ty wind swell where I live. 4-5ft max.

For the wind swell riders, in your experience what kind of foil is best suited for these conditions? 10AR ish and turns well or 12+AR that glides well?



4-5 ft wind swell is firing for downwinding!! Start with a very high AR foil and again, with skills you can go down in AR and downwind easily with a <10AR foil. My "flat to 2ft foil" now is the 1130S from code (70Kg) AR 9.5
AnyBoard
AnyBoard
NSW
494 posts
NSW, 494 posts
23 Sep 2026 6:19pm
windwaterfoil said..
I am curious about this topic too. We only have ****ty wind swell where I live. 4-5ft max.

For the wind swell riders, in your experience what kind of foil is best suited for these conditions? 10AR ish and turns well or 12+AR that glides well?


Its a very controversial question but for me i like my 12 aspect but i am only 66kg so in lighter conditions i only have the span of an 800 to deal with at 98cm and it surfs amazing. I like the glide that a 12 aspect foil allows you to finish a turn with. for 20 knots 685 12 aspect is great. I have two friends much heavier than me going in the same conditions. One will always be on one size bigger 12 aspect than me and the other loves his fairly large 10 aspect surf foils. they both work for different reasons.
I think for learning 12 aspect provides more time to make decisions to learn and will pump you out of trouble easier. 10 aspect might not project so well on the pump but it might provide a more manageable wingspan for those heavier riders.
Its almost like 12 to learn then 10 when better for a while and then smaller foils with 12 aspect again when pushing tight fluid turns.
Its hard to predict what particular bumps you might encounter until your try. Plenty of cheaper fun foils to learn on second hand if you want to change it up to see.
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