Spring and autumn are the best times to visit, since the climate will be perfect in İstanbul and on the Aegean and Mediterranean coasts. It will be cool in central Anatolia, but not unpleasantly so. Visiting before mid-June or after August may also help you avoid mosquitoes. The Black Sea coast is best visited between April and September; there will still be rain but not so much of it. With the exception of İstanbul, Turkey doesn’t really have a winter tourism season. Places catering to backpackers usually see Anzac Day as the official start of the season; those catering to package holiday-makers get going in early May. Peak season is from July to mid-September, when most Turks take their holidays. The best time to visit eastern Turkey is from late June to September. Don’t plan to venture east before May or after mid-October unless you’re prepared for snow. Try to avoid travelling during Kurban Bayramı, Turkey’s most popular public holiday; you may also want to avoid the fasting month of Ramadan.