Μake us preferred on Google Greece’s traditional summer tourism calendar is beginning to change. July and August remain the undisputed peak of the Greek summer, but a second tourism period is steadily growing around them, with April and May on one side and September and October on the other.
Several factors are driving the shift, including lower prices outside the peak season, less congestion, increased air connectivity and changing travel habits. In recent years, however, another factor has become increasingly important: the climate crisis and the extreme temperatures experienced across the Mediterranean during summer.
According to research by the European Travel Commission (ETC), 75% of European travelers say changing climate conditions — from heat waves and wildfires to heavy rainfall and a lack of snow — have affected the way they travel. The figure rises to 81% among people ages 18 to 24.
The change does not mean Europeans are abandoning the Mediterranean. Instead, they are increasingly reconsidering when to visit it.
This is strengthening demand during the so-called “shoulder seasons,” the months immediately before and after the summer peak — April and May, and September and October. Data increasingly suggests that extending Greece’s tourism season is no longer simply a policy objective but a trend that is already visible in tourism revenues and travel demand.
Shoulder seasons gain ground
A comparison of Bank of Greece data between 2019, the last full year before the pandemic, and 2025 is revealing.
In 2019, travel receipts during April, May, September and October totaled about 6.43 billion euros. Six years later, those same four months generated approximately 8.88 billion euros in 2025, an increase of about 38%.
Over the same period, total annual travel receipts increased by approximately 30%.
This means the months on the edges of the traditional summer season grew faster than the tourism market as a whole. The share of total tourism receipts generated in April, May, September and October increased from about 35.4% in 2019 to 37.6% in 2025.
The 2.2-percentage-point increase may appear modest, but in a tourism market worth more than 23 billion euros, it represents a significant shift in economic activity.
Early data for 2026 suggests the trend is continuing, at least on the spring side of the season.
In April, travel receipts reached approximately 1.12 billion euros, up 9.5% from the same month in 2025, while inbound travel increased by 10.6%.
May was even stronger. Travel receipts reached about 2.43 billion euros, an increase of 10.9%, while inbound travel rose 12.2%.
Together, April and May generated approximately 3.54 billion euros this year, compared with 3.21 billion euros last year — an increase of about 10.4% in a single year.
The comparison with June is particularly striking. Travel receipts during the first month of summer reached 3.48 billion euros, but increased by just 1.2%, even though arrivals rose 6.9%. Average spending per trip fell by 6.2%.
In other words, tourism revenues in April and May grew several times faster this year than they did in June.
October emerges as a major winner
The shift is even more pronounced at the other end of the season, particularly in September and October.
According to scheduled airline seats recorded by INSETE’s Airdata Tracker, approximately 3.6 million international airline seats to Greece have been scheduled for October 2026. That represents a 19% increase from last year.
The contrast with the peak summer months is significant.
Scheduled capacity is expected to increase by about 6.6% in July, around 6% in August and 5.7% in September. October’s increase is therefore roughly three times the growth rate recorded during the heart of summer.
The trend raises questions about how much of the shift is being driven by the climate crisis. Travel behavior surveys indicate that climate has become an increasingly important factor in travelers’ decisions.
According to the European Travel Commission, heat waves, wildfires, extreme rainfall and other consequences of climate change are increasingly being considered alongside the price of flights and hotels when travelers choose both their destination and the timing of their trip.
The development could have implications across the Mediterranean.
A study by the European Commission’s Joint Research Centre (JRC) indicates that rising temperatures could gradually redistribute tourism demand across Europe. Under the most extreme warming scenarios, southern coastal areas could lose some demand during the hottest months while gaining visitors in spring and fall.
Under a scenario in which temperatures rise by 4 degrees Celsius, the JRC estimates that European tourism demand in April could increase by 8.9%, while July would face the greatest pressure.
Greece still depends heavily on July and August
The data does not suggest that Greek tourism is abandoning July and August. Instead, the traditional peak appears to be developing longer “tails” before and after it.
In 2026, October is emerging as the biggest winner in terms of airline capacity, with almost 19% more scheduled seats compared with the previous year, while increases in the two hottest months remain around 6%.
Greece nevertheless remains one of Europe’s most seasonal tourism markets.
According to Eurostat, 41.6% of all overnight stays in Greece in 2025 took place in July and August, compared with an average of 31.1% across the European Union.
There are important reasons for this concentration. Tourism demand is not determined by temperatures alone. School vacations, workers’ annual leave, tour operator schedules and seasonal air connections continue to direct millions of travelers toward July and August.
For Greece’s tourism industry, however, the gradual shift in when people take their vacations could represent a major opportunity: moving beyond the traditional model of roughly 100 peak tourism days and generating tourism activity across a much larger part of the year.
The numbers suggest that Greece is already beginning to move in that direction.
