Climate & Weather in Greece

Greece enjoys a Mediterranean climate - one of the world's most pleasant. Hot summers, mild winters, and over 300 days of sunshine make it attractive for sun-seekers.

Climate Overview

Southern Greece & Islands:

Summer (Jun-Sep): 30-35°C, very dry
Winter (Dec-Feb): 10-15°C, rainy periods
Spring/Autumn: 18-25°C, pleasant

Northern Greece (Thessaloniki, mainland):

Summer: 28-33°C, more humid
Winter: 5-12°C, occasional snow
More distinct seasons

Mountains:

Significantly cooler
Ski resorts operate in winter
Dramatic temperature drops at altitude

Seasonal Guide

Summer (June-September):

Peak tourist season
Temperatures 30-40°C
Very dry - no rain
Sea temperature 24-27°C (perfect)
AC essential
August: extreme heat, locals flee to islands

Autumn (October-November):

Ideal weather: 18-25°C
Sea still warm for swimming
Some rain begins
Fewer tourists
Great hiking weather

Winter (December-February):

Mild by European standards: 10-15°C
Rainy periods
Heating needed (can be expensive)
Northern areas colder
Tourist sites uncrowded
Short days

Spring (March-May):

Beautiful weather: 18-25°C
Wildflowers everywhere
Easter celebrations
Sea warming up
Perfect for exploration

Regional Variations

Athens:

Hot summers with some smog
Urban heat island effect
Winters mild but rainy

Thessaloniki:

More continental climate
Hotter summers, colder winters
More humid

Cyclades (Mykonos, Santorini):

Strong summer winds (Meltemi)
Keeps islands cooler
Can disrupt ferries

Crete:

Warmest large island
South coast drier
Mountains create microclimates

Ionian (Corfu):

Greener, more rain
Lusher vegetation
Less extreme summer heat

Living with the Climate

Summer survival:

AC is essential (budget €100-200/month electricity)
Siesta culture exists for a reason
Avoid outdoor activity 12-5pm
Stay hydrated
Beach culture from June-September

Winter considerations:

Heating needed (oil, gas, or AC units)
Budget €150-300/month heating costs
Some older buildings are poorly insulated
Rainy days - have indoor activities planned
Daylight shorter (sunset ~5pm in December)

Weather Challenges

Heat waves:

Increasingly common
Temperatures 40°C+
Public cooling centers open
Stay indoors during peaks

Wildfires:

Major summer risk
Avoid dry forested areas
Follow evacuation orders
Air quality affected during fires

Storms:

Autumn/winter storms can be intense
Ferry disruptions common
Flooding in some areas

Meltemi winds:

Strong northerly summer winds
July-August peak
Affect ferry schedules
Good for windsurfing, challenging for sailing

Pro Tips

•Air conditioning is essential for summer - factor into housing costs
•Shoulder seasons (Apr-May, Sep-Oct) offer ideal weather
•August is extremely hot - consider escaping to mountains or northern islands
•Winter heating costs can be high in older buildings
•Meltemi winds in summer keep Cyclades cooler but can disrupt ferries

Climate & Weather