Nykteri (also spelled Nikteri) is Santorini's third traditional wine style alongside dry, unoaked Assyrtiko and sweet Vinsanto — a barrel-aged, higher-alcohol dry white that's been made on the island for at least a century, though it was largely overshadowed by the stainless-steel Assyrtiko boom of the 1990s and only really rediscovered by producers in the last couple of decades.
Where the name comes from
Nykteri means roughly "of the night" or "night's work" in Greek, referring to the traditional practice of harvesting and pressing grapes overnight, when the island's summer heat had dropped enough to protect the fruit from oxidizing or spoiling before it reached the winery. Most producers now harvest by day, but the name — and the barrel-aged style it originally described — has stuck.
What's actually in the glass
By the official rules, codified only in 2002, a wine can be labelled Nykteri if it's built mainly around Assyrtiko (often blended with the local Athiri and Aidani grapes), reaches at least 13.5% alcohol, and spends a minimum of three months in barrel. That's a fairly loose definition, and in practice producers interpret it quite differently — some aim for a lighter, cleaner style, others for something richer and closer to the oxidative, sherry-like character the old-style Nykteri was known for. What unites them is the oak: where standard Assyrtiko is famous for its steel-fermented, citrus-bright minerality, Nykteri trades some of that brightness for weight, texture and toasted, nutty notes from the barrel.
Trying it
Look for it on tasting menus at wineries that lean into Santorini's older traditions rather than purely modern styles — worth asking about specifically, since it's easy to miss next to the better-known Assyrtiko and Vinsanto on a wine list. See our winery profiles for places to start.
Spotted something out of date, or have a correction? Let us know — we'd rather fix it fast than leave it wrong.