Best Time to Visit Istanbul (Bosphorus)
April, May, June, September, October
The best months to visit Istanbul (Bosphorus): April, May, June, September, October. Use this window for the best balance of weather, cost, and activities.
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Climate Overview
Mediterranean-influenced climate; warm summers (28–32°C) and cool winters. Best April–June and September–October.
Month-by-Month Calendar
The Four Seasons
Spring is prime time for Istanbul (Bosphorus). Mediterranean-influenced climate; warm summers (28–32°C) and cool winters. Best April–June and September–October.
Summer is prime time for Istanbul (Bosphorus). Mediterranean-influenced climate; warm summers (28–32°C) and cool winters. Best April–June and September–October.
Autumn / Fall is prime time for Istanbul (Bosphorus). Mediterranean-influenced climate; warm summers (28–32°C) and cool winters. Best April–June and September–October.
Winter in Istanbul (Bosphorus): Mediterranean-influenced climate; warm summers (28–32°C) and cool winters. Best April–June and September–October.
What to Pack?
Smart casual. Modest dress required for mosques (head covering for women, no shorts). Comfortable walking shoes essential.