Corfu is one of Greece's easiest islands for travel with a dog: a walkable UNESCO Venetian Old Town, lush green Ionian climate (milder and greener than the Aegean), the Spianada and Mon Repos shaded walks, gateway airport CFU 2 km south of the centre, and the standard ferry routes to Igoumenitsa (1h30) and Brindisi/Bari Italy (8–10h overnight). Main constraints are summer humidity and the absence of a 24h vet hospital.
April–June and September–October are ideal: 18–26 °C, dry, sea at swimmable temperature, dog-tolerant beaches less crowded, lush green island still in flower. Avoid July–August (28–32 °C with humidity, peak crowds, Paleokastritsa packed) and November–February (heaviest rainfall in Greece, some seasonal tavernas closed).
The 1890 Achilleion Palace 10 km south of Corfu Town was built by Empress Sissi of Austria and later owned by Kaiser Wilhelm II. The neo-classical villa interior bans dogs but the formal gardens with statues of Achilles, panoramic terraces and the famous bronze 'Dying Achilles' are dog-accessible on lead. KTEL Astiko bus 10 from San Rocco square (1.70 EUR, 30 min).
Greece uses the euro. Corfu Town is mid-priced among Greek islands (similar to Chania): meal 16–28 EUR, taverna mezedes 4–9 EUR/plate, mid-range pet-friendly hotel 95–170 EUR/night, taxi airport to centre 10–15 EUR fixed fare. Italy ferry adds 60–150 EUR per car including pet cabin.