Greece Weather & Climate Guide 2025
Plan your trip with detailed weather information and seasonal tips for Greece.
Greece offers a captivating blend of ancient history, stunning islands, and Mediterranean culture. From the iconic Acropolis in Athens to the whitewashed villages of Santorini, this sun-soaked destination combines archaeological wonders with pristine beaches and world-class cuisine.
Best Time to Visit
Best Months
July-August
Months to Avoid
November-March
Climate Overview
Greece enjoys a classic Mediterranean climate with hot, dry summers and mild, wet winters. The country spans several climate zones: Athens and the Aegean islands have the archetypal dry summer (June-September virtually rain-free), while northern Greece and the Ionian islands receive more winter rainfall. Summer temperatures regularly reach 35-40C on the mainland and islands, with the Meltemi north wind moderating heat on the Aegean islands from July-August. Winters are mild in the south (Athens rarely below 5C) but northern mountains receive significant snowfall.
Month-by-Month Guide
What to expect each month of the year.
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Seasonal Planning Guide
Complete weather data, packing lists by season, and event calendars.
Seasonal Breakdown
Detailed information for each season.
🌸 Spring
March-May
The best season for culture and hiking. Wildflowers cover the hillsides, ancient sites are uncrowded, temperatures are pleasant (15-22C), and the famous Samaria Gorge opens in late April. Greek Easter (date varies) is the country's greatest celebration.
☀️ Summer
June-August
Peak season with long days, hot sun (30-38C), and the full tourist operation running on all islands. Santorini and Mykonos are at their most vibrant and expensive. The Meltemi wind cools the Cyclades from July onwards but can disrupt ferry services.
🍂 Fall
September-November
September and October are arguably the finest months in Greece: warm sea temperatures (still 23-25C), thinner crowds, lower prices, and some of the year's most beautiful light. November brings increasing rainfall and island businesses begin to close.
❄️ Winter
December-February
The Aegean islands largely shut down (especially Mykonos, Santorini, smaller Cyclades). Athens remains lively and excellent for culture without crowds. Northern mountains have good skiing. Crete and Rhodes remain warmer and partially open.
What to Pack
Seasonal packing recommendations.
Year-Round Essentials
- Modest clothing (cover shoulders and knees)
- Comfortable walking shoes
- Sun protection (hat, sunscreen, sunglasses)
- Light scarf or shawl (for religious sites)
- Reusable water bottle
- Power adapter
- Basic first aid kit
Hot Weather Additions
- Lightweight, breathable fabrics
- Extra sun protection
- Cooling towel
- Light colors to reflect heat
- Sandals with back straps
Cool Weather Additions
- Warm layers (fleece, sweater)
- Light jacket or coat
- Rain gear (umbrella, waterproof jacket)
- Closed-toe shoes
- Warm accessories (if winter)
Events & Crowd Levels
Plan around busy periods and special events.
🔴 High Season
July-August
Higher prices, advance booking essential, crowded attractions.
🟡 Shoulder Season
April-June and September-October
Good balance of weather and crowds. Reasonable prices.
🟢 Low Season
November-March
Best deals, fewer tourists. Some services may be limited.
Major Events & Holidays
Ancient Greek dramas and modern performances in historic venues including Epidaurus ancient theater and Odeon of Herodes Atticus beneath Acropolis. World-class productions in spectacular settings.
Major rock and alternative music festival near Athens. International and Greek acts. Three-day festival at Terra Vibe Park.
International jazz performances in Oia with caldera sunset backdrop. Intimate venues and world-renowned musicians.
Greece's most important holiday with midnight services, fireworks, candlelit processions, and Easter Sunday lamb roasts. Experience authentic traditions especially in villages.
Carnival celebrations throughout Greece with parades, costumes, and parties. Patras hosts Greece's largest carnival. Similar to Mardi Gras.
National holiday commemorating Greece's refusal to surrender to Italy in WWII. Military parades in Athens and major cities. Banks and most businesses closed.
Run the original marathon route from Marathon to Athens following Pheidippides' path. Finishes in Panathenaic Stadium. 50,000+ participants.
Grape harvest celebrations in wine regions. Santorini, Nemea, and Crete host festivals with tastings, traditional music, and vineyard tours.
Major film festival showcasing Greek and international cinema. Industry events, premieres, and retrospectives.
Electronic music and digital arts festival in Athens. Multiple venues, workshops, and performances across the city.
Celebrates 1821 revolution against Ottoman rule. Military parades in Athens, church services, and flag ceremonies. National holiday.
Thessaloniki's patron saint celebration with religious processions, traditional music, and street festivals. Most important day in Thessaloniki.
Plan Your Perfect Greece Trip
Get our complete seasonal guide with detailed packing lists, event calendars, and month-by-month planning tips.
Download Weather Guide