Ithaca in November

May through September works, but July and August bring the heat and the crowds — though 'crowds' on Ithaca means you might have to wait 10 minutes for a taverna table. June hits the sweet spot: warm enough for swimming, cool enough for hiking, and the wildflowers still carpet the hillsides. September stretches summer into fall with perfect weather and locals who've relaxed after tourist season. The sea stays warm through October. Winter? Everything shuts down except a few places in Vathy, and ferries run sporadically. Spring arrives early — March brings almond blossoms and hiking weather, though the sea won't be swimmable until May.