Considering we are in mid April, this post is probably of little interest, anyway, April has been a quite rainy month, but basically, if it rains, generally it rains all over the coast, in Jeri too, if there's no wind or light wind, again it happens everywhere, but if wind blows, you can espect 5 to 10, (sometimes more) kts up towards Jeri than, by instance, Cumbuco, which sometimes can be not so interesting, (or yes), depending of the sort of kiting you prefer.
Said that, you can expect the wind to return as soon as stops raining and staying all the way until...it starts raining again, sometime in Feb-March-April, in other words, the thopic, only wind from July-Dec is just that, a thopic, and, by the way, mostly innacurate.
For further information, check
http://www.kite-surf.com on the forum, thopic Cumbuco and read all what happened the last two years, week by week.
Cheers. CRIS
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http://www.kiteboardcumbuco.com.br