Weather in Greece in September

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temperature
Temp

21° C

average

rain
Rain

6 mm

per month

sun
Sun

88 %

chance

humidity
Humidity

50 %

average

Weather in Greece in September

September in Greece is a beautiful transition from summer to autumn, characterised by warm days and mildly cooler nights. Travellers can expect average temperatures to be comfortably warm, making it suitable for outdoor exploration and enjoying Greece’s natural beauty. The month generally offers plenty of sunshine with minimal rainfall, providing ideal conditions for sightseeing and activities unique to the season.

September Climate Overview

  • Average Temperature: 20°C to 29°C
  • Rainfall: Approximately 20 mm
  • Sunshine Hours: Around 10 hours per day
  • Sea Temperature: 24°C
  • Humidity: Moderate, around 60%
  • Wind Speed: Light to moderate, about 10 km/h

What to Expect in September

Daytime Conditions

During the day, Greece in September enjoys warm temperatures with highs reaching up to 29°C. The sun is strong, but the moderate humidity ensures it feels comfortable rather than oppressive. It’s perfect for enjoying prolonged periods outdoors, with light clothing recommended to stay comfortable.

Rainfall Patterns

Rainfall in September is relatively low, with occasional brief showers that rarely disrupt plans. Rain tends to be scattered and light, meaning it shouldn’t significantly impact outdoor adventures or exploring picturesque towns and historical sites.

Evening Conditions

Evenings in September cool down pleasantly, with temperatures dropping to around 20°C. A gentle breeze often accompanies the cooler air, making it comfortable for evening walks or enjoying al fresco dining without feeling chilled.

Best Activities in Greece in September

  • Outdoor Activities: Hiking in the mountains, exploring archaeological sites like Delphi, and enjoying local markets are great ways to immerse in Greece’s culture and landscapes during September.
  • Seasonal Highlights: September marks the beginning of the grape and olive harvest, offering a chance to experience local traditions and produce.
  • Water-based or Nature-based Activities: With warm sea temperatures, swimming and snorkelling remain popular, especially around idyllic islands and coastal areas.

What to Pack for September

  • Appropriate clothing for daytime and evening temperatures
  • Protection from sun or rain (hat, sunscreen, umbrella, etc.)
  • Footwear suitable for local terrain (e.g., walking, hiking, city streets)
  • Reusable water bottle

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