The Ionian Islands are a group of seven main islands scattered along the western coast of Greece, known for their lush green landscapes, crystal-clear turquoise waters, and rich Venetian heritage. Unlike the arid Aegean islands, the Ionians enjoy a wetter climate that keeps them verdant year-round, creating a unique Mediterranean paradise. From the cosmopolitan charm of Corfu to the dramatic coastlines of Kefalonia and the famous shipwreck beach of Zakynthos, these islands offer an unparalleled blend of natural beauty and cultural richness.
The Ionian Islands have a classic Mediterranean climate with hot, dry summers and mild, wet winters. The region is the wettest part of Greece due to its westerly position and the influence of the Adriatic, making the islands exceptionally green and lush compared to the Aegean islands. Summers (June-September) are reliably sunny with temperatures reaching 28-32°C. Spring (April-May) and autumn (September-October) offer warm, pleasant weather ideal for sightseeing and hiking. Winters are mild with temperatures rarely below 8-10°C, but rainfall is frequent from November to February.
Best time to visit
Overall Best: May-June and September-October — warm enough for beaches and water, fewer crowds than peak summer, significantly lower prices
For Beaches: June through September (July-August for warmest water but most crowded)
For Hiking: March-May and October-November (cooler temperatures, wildflowers in spring)
For Diving: May-October (best visibility and water temperature)
For Culture: Year-round for Corfu Old Town; April for Easter celebrations
Avoid: November through March for beach holidays — most facilities closed and weather can be wet
Month-by-month weather
Typical conditions throughout the year.
Items
The seasons
What to expect in each part of the year.
Summary
Four distinct seasons with a long warm season from May to October and a mild wet winter from November to March.
Items
Spring (Wildflowers bloom across the islands, temperatures reach 18-22°C, and rain is possible but increasingly rare. Excellent for hiking, sightseeing, and photography. Crowds are minimal, prices are low.), Summer (Hot, dry, and sunny with temperatures 26-32°C and almost guaranteed sunshine. Sea temperatures reach 24-27°C, ideal for swimming. Peak tourist season — high prices and crowds.), Autumn (Temperatures cool to 18-24°C in October; still warm enough for swimming. Crowds thin rapidly after mid-September. October is often considered the best month for non-beach tourism.), Winter (Mild (10-15°C) but wet. Most tourist facilities close. The islands are quiet and authentic but ferry schedules reduce and some attractions close. Christmas and New Year celebrations are local and atmospheric.)
Crowds & peak times
When to expect tourists and when to avoid them.
- Peak
- Months
- July - August
- Description
- Maximum tourist arrivals. Beaches packed, roads congested, accommodation prices at highest, ferry bookings essential weeks in advance.
- Shoulder
- Months
- May - June and September - October
- Description
- Ideal balance of warm weather and manageable crowds. Prices 20-40% lower than peak season. Most beaches and facilities open but not overwhelmed.
- Low
- Months
- November - April
- Description
- Very quiet. Authentic local experience but many hotels, restaurants, and attractions closed. Ferry services reduced. Lower prices throughout.
Major events & festivals
Time your visit around what matters.
Corfu Carnival (Apokries)
One of Greece's biggest carnival celebrations with elaborate floats, masked balls, costumes, and street parties in the weeks before Orthodox Lent. Dates move with the Easter calendar.
Orthodox Easter (Megali Evdomada)
The most important Greek Orthodox celebration. Midnight Resurrection mass with candlelit processions is especially spectacular in Corfu Town where pots are thrown from windows at midnight on Holy Saturday.
Ionian Regatta
An international sailing race through the Ionian Islands attracting yachts from across Europe, with Corfu as a major stop.
Feast of Agios Spyridon
The feast day of Corfu's patron saint, with a major religious procession carrying the saint's relics through the old town, accompanied by Corfu's philharmonic bands.
Assumption of the Virgin (Dekapentavgoustos)
One of the most important Greek religious holidays. Celebrated across all islands with church services, local festivities, and family gatherings. Many Greeks return home for the holiday.
Feast of Agios Dionysios
The feast day of Zakynthos's patron saint, with a religious procession and community celebration in the town.