Weather in Kos in September

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temperature
Temp

25° C

average

rain
Rain

12 mm

per month

sun
Sun

87 %

chance

humidity
Humidity

64 %

average

Weather in Kos in September

In September, Kos, Greece experiences a gentle transition from the intense summer heat, offering pleasant temperatures ideal for outdoor activities. Travellers can expect warm days with minimal rainfall, abundant sunshine, and moderate humidity. September in Kos is perfect for those looking to explore and enjoy the natural beauty of the island.

September Climate Overview

  • Average Temperature: 20°C to 30°C
  • Rainfall: Approximately 20mm
  • Sunshine Hours: Up to 10 hours per day
  • Sea Temperature: 24°C
  • Humidity: Moderate, around 65%
  • Wind Speed: Typically light, 10-15 km/h

What to Expect in September

Daytime Conditions

During the day, temperatures often reach up to 30°C, tempered by refreshing sea breezes. The abundant sunshine and relatively low humidity make for comfortable exploration conditions without the oppressive heat of midsummer.

Rainfall Patterns

Rain is quite rare in September in Kos, with the island experiencing brief, scattered showers at times. Such showers are usually not intense and are unlikely to disrupt outdoor plans significantly.

Evening Conditions

Evenings in September tend to cool down to around 20°C, creating a pleasant atmosphere for outdoor dining and activities. Light breezes may occur, adding to the comfortable evening conditions that suit outdoor leisure.

Best Activities in Kos in September

  • Outdoor Activities: Excellent for hiking, exploring archaeological sites, and enjoying local markets.
  • Seasonal Highlights: September offers the harvesting of wine grapes and olives, providing a unique glimpse into local agricultural traditions.
  • Water-based or Nature-based Activities: With warm sea temperatures, swimming, snorkelling, and sailing are highly recommended.

What to Pack for September

  • Lightwear and layers suitable for warm days and cooler evenings
  • Sun protection gear including a hat, sunglasses, and sunscreen
  • Rain jacket or umbrella in case of brief showers
  • Comfortable walking shoes or hiking boots
  • Reusable water bottle to stay hydrated

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