Istanbul, Annual Weather Averages

Istanbul, bridging Europe and Asia, experiences a temperate climate with distinct seasons. Summers are warm and humid, whilst winters are cool and wet. Understanding Istanbul’s monthly weather patterns can help you plan your visit effectively.

• • Warmest Months: July and August, with average highs around 29°C.
  • Coolest Months: January and February, with average lows near 3°C.
  • Driest Month: July, receiving approximately 34 mm of rainfall over 5 rainy days.
  • Wettest Month: December, with about 116 mm of rainfall over 17 rainy days.
  • Sunniest Month: July, offering 12 hours of sunshine daily.
  • Best Sea Temperatures: August, when the sea reaches up to 21°C.

  Istanbul’s diverse climate offers a range of experiences throughout the year. Whether you’re interested in warm summer days or cooler autumn months, understanding the city’s weather patterns will help you plan the perfect visit.