Water temperature and wave height on the beaches of Kos

Beach and sea characteristics in the Kos area

📍 Kos – Coastal Overview:

Kos, part of the Dodecanese islands in the southeastern Aegean Sea, offers diverse beaches, from wide sandy stretches to volcanic black pebbles and thermal springs. The island is ideal for beach lovers, with over 100 km of coastline, a mix of lively resort areas, and quiet, natural bays. The sea here is warm, shallow in many parts, and very family-friendly, while also offering windsurfing and snorkeling opportunities.

🏖️ Main Beach Areas in Kos:

1. Tigaki Beach

  • One of the most popular beaches on the island’s north coast

  • Long stretch of soft, white sand and shallow, calm waters

  • Ideal for families and beginner swimmers

  • Fully organized: sunbeds, umbrellas, beach bars, water sports

  • Close to Kos Town (approx. 15 min drive)

2. Kardamena Beach

  • Lively beach near the resort village of Kardamena

  • Soft golden sand and clear waters

  • Popular with young crowds – beach bars and nightlife

  • Water sports available: jet skis, banana boats, parasailing

  • Great mix of relaxation and entertainment

3. Paradise Beach

  • Located on the south coast near Kefalos

  • Famous for its soft white sand and turquoise water

  • Shallow entry, great for children and snorkeling

  • Known for "bubble beach" section with natural underwater gas bubbles

  • Organized facilities + natural areas for relaxation

4. Therma Beach (Agios Fokas)

  • Unique beach with natural hot springs flowing into the sea

  • Located in a rocky cove surrounded by cliffs

  • Mix of hot and cold water – a natural spa experience

  • Pebbly shore, bring water shoes

  • Not ideal for long beach days but perfect for wellness and evening visits

5. Lambi Beach

  • Close to Kos Town, easily accessible by bike or walk

  • Long pebbly-sandy stretch with clear water

  • Beach clubs, restaurants, and a relaxed atmosphere

  • Excellent for sunsets and a quick swim while staying in the city

6. Agios Stefanos Beach

  • Scenic beach near Kefalos with views of an ancient basilica and islet

  • Calm waters, soft sand, and a peaceful vibe

  • Good snorkeling around the small island just offshore

  • Not crowded, ideal for couples or quiet relaxation

🌊 Sea & Beach Characteristics (Kos Coast):

  • Sea: Aegean Sea

  • Water color: Light turquoise to deep blue, often very clear

  • Water clarity: Excellent – perfect for snorkeling and diving

  • Beach types:

    • East/North: Sandy with organized resorts (Tigaki, Lambi)

    • South/West: Wild, natural beaches (Paradise, Agios Stefanos)

    • East coast near Agios Fokas: Rocky and therapeutic (Therma)

  • Depth: Mostly shallow in resort areas; deeper and clearer in west/south

  • Waves: Generally calm; windier areas suitable for windsurfing (e.g., Mastichari)

  • Marine life: Small fish, occasional turtles, sea urchins (water shoes advised)

  • Facilities: Many beaches are fully organized; others remain wild and natural

☀️ Best Time to Visit the Beaches:

SeasonSea TempBeach Experience
🌸 Spring17–20°CGreat weather for exploration, sea may still be cool
☀️ Summer23–26°CIdeal beach season – perfect for swimming, sports, sunbathing
🍂 Autumn22–24°CWarm waters linger, quieter beaches, great sunsets
❄️ Winter15–17°CToo cold to swim, but beach walks and thermal baths possible

Why Choose Kos for the Beach?

🏖️ Huge variety – sandy, pebbly, hot springs, snorkeling spots
👨‍👩‍👧‍👦 Family-friendly: shallow, calm waters and organized beaches
🏄‍♂️ Water sports, especially in Kardamena and Mastichari
🌿 Natural beauty and ancient ruins near the shore
🛥️ Easy day trips to nearby islands like Kalymnos or Nisyros

 

Water temperature in Kos by month
 
MonthAvg. Water Temp
January16°C
February15.5°C
March16°C
April17°C
May20.5°C
June23.5°C
July25.5°C
August26.5°C
September25°C
October22.5°C
November20°C
December17.5°C

✅ Notes:

  • 🏊‍♂️ Ideal swimming months: June through October

  • 💨 Water on the west coast of Kos can feel cooler due to wind exposure

  • 🌅 September offers the warmest water with fewer tourists

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