Squid follow the light, not the tide
Greystones Harbour & PierEvery other species on this coast has a tide state that triggers feeding. Squid are different, what draws them in is artificial light. The pier lights at Greystones Harbour concentrate whitebait on the surface, and squid follow. On a good autumn night you can watch them dart through the lit water. Position yourself directly beneath or as close as possible to a working pier light. The tide matters less than the light quality.
Calm nights only, wind kills squid fishing
Squid fishing from Irish piers is almost exclusively a calm-weather activity. An easterly wind that would be perfect for beach bait fishing is death for squid, the surface chop breaks up the light cone, baitfish scatter, and squid retreat to deeper water. The conditions you want are the opposite of a good surf session: flat, still, cold, clear autumn nights. Check the forecast specifically for wind, even 10 knots makes a significant difference.
The sink is where the take happens
Most anglers new to eging focus on the dart, the upward rod flick that makes the egi dart and flash. The dart attracts the squid; the sink is what seals it. Squid grab the egi as it falls on a semi-slack line, often barely detectable as a subtle added weight or the line stopping before it should. After every dart sequence, drop the rod tip immediately and watch the line enter the water. Any hesitation in the sink is a squid.
Vary the sink depth until you find them
Squid are highly depth-specific, some nights they're holding at 2 metres, other nights at 8 metres or deeper. Count the seconds after each cast before beginning your dart sequence: 5 seconds, then 10, then 15. When you get a take, note the count exactly and repeat it on the next cast. Once you find the depth, stay there. Varying sink time is the single most productive adjustment you can make mid-session.
October to November: the Wicklow squid window
Greystones Harbour & PierEuropean squid appear on the Wicklow coast in late September and the best of the fishing runs through October and into November. By December numbers thin considerably. Mid-October on a flooding spring tide at Greystones Harbour on a calm, clear night is the peak combination. Sessions of 6 to 10 squid are realistic; on exceptional nights significantly more. Cook them the same evening, fresh squid needs nothing more than a hot pan and butter.
Egi colours: pink, orange and luminous bodies
Irish squid fishing is still new enough that definitive colour guidance is developing. From experience and reports from Greystones Harbour, pink and orange egi in sizes 2.5 to 3.0 have been the most consistent. In very clear, lit water, natural/translucent colours can outperform gaudy ones. In darker conditions or when squid are deeper, a luminous egi charged with a torch before each cast frequently produces when others don't.