In reply to Dave the Rave:
I hope you had (are having) a good time on the water as I write.
It's difficult to avoid a southerly wind on the south coast of course. You're wise to want to avoid an offshore wind, but if I'd seen your post in time I think I would have been recommending a North coast venue* for shelter even so. (From relatively moderate winds, not as strong as forecast for tomorrow.)
'Rips' - which I take to mean strong currents flowing directly away from a beach out to sea, are not a tidal phenomenon and not something that anywhere on Anglesey is prone to. They're more something that's associated with surf, and while there are lots of very strong tidal currents flowing around Anglesey it's extremely rare to get big surf there. (Because the big long-fetch swell coming in off the Atlantic is almost always intercepted by Ireland before it gets there!)
Except where bays, river estuaries and the like are filling and emptying with the tide, tidal currents around the UK generally tend to flow more or less parallel to the shore and the times of 'slack water' when they stop and/or change direction don't generally coincide with high/low water at the same place. (So tide tables aren't always helpful on their own for telling you about what the tidal currents will be doing.)
Windy, Windfinder and XC Weather are all quite popular, but my preferred forecast for wind/swell is Wind Guru.
https://www.windguru.cz/70
Magic Seaweed can also be useful.
There are tidal stream atlases available to give you an idea of the tidal currents flowing around the coast, but they're mainly aimed at yachties operating further out so often lack the kind of detail that'd be more useful to a paddler. The Welsh Sea Kayaking guide book is very good but currently out of print, hopefully the new edition will be along soonish. You can get a look at very broad-brush tidal stream atlases for free (along with some good general info about tides generally) at 'Visit My Harbour' here:
https://www.visitmyharbour.com/articles/3180/hourly-tidal-streams-irish-sea...
The numbers on those charts are speeds in tenths of a knot for neaps and springs, so "23,41" for example means 2.3 knots on an average neap tide and 4.1 knots on springs.
I don't know if you're a 'taking a course' kind of a guy, but a one-day BC 'Coastal Navigation and Tidal Planning' course might be worth your time and (not very much) money. The Franco Ferrerro 'Sea Kayak Navigation' book is good too.
* - My belated suggestion for a sheltered potter about a bay somewhere this afternoon would have been Porth Eilan I think, from Llaneilan. There's a powerful tidal flow past Point Lynas that starts running West around 30 minutes before HW Liverpool (so a bit before 2pm today), but you're well sheltered from that in the bay and as it's running West there'd be no chance of getting stranded on the wrong side of the headland even if you did venture out there. (Once it got going on a big tide like today you probably couldn't paddle round the point even if you tried to.) A Southerly wind is offshore there, but as long as you stayed reasonably close in I don't think you'd really feel it at all.