Eyüp Sultan Mosque
One of Istanbul’s holiest sites, the mosque and adjacent tomb draw pilgrims and visitors seeking quiet reflection amid Ottoman architecture and golden-horn views.

Visa, seasons, climate, currency, fast facts and public holidays for Istanbul visitors.
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Visitor InformationEntry to Türkiye depends on nationality, passport type, travel purpose and permitted stay. Some visitors are visa-exempt, while others must obtain an e-Visa or apply through a Turkish mission; the official e-Visa system is valid for tourism or commerce only. Check your nationality on the Ministry of Foreign Affairs and e-Visa websites before paying any third-party service.
Visitor InformationApril to May and September to October are usually the most balanced periods for Istanbul's historic peninsula, Bosphorus ferries, neighbourhood walks and family itineraries. June can be pleasant but busy, while July and August bring stronger heat, humidity and peak demand. Ramadan and Eid can change dining rhythms, mosque visitation patterns and evening traffic; verify dates and venue notices each year.
Visitor InformationIstanbul has a transitional climate influenced by the Black Sea and the Sea of Marmara. Summers are generally warm and humid, winters are cool with regular rain and occasional snow, and spring and autumn can change quickly within a single day. Pack layers, comfortable waterproof shoes, sun protection and a light outer layer for mosques, ferries and heavily air-conditioned interiors.
Visitor InformationIstanbul uses the Turkish lira (TRY). Cards and contactless payments are common in hotels, modern restaurants, malls and ticketed attractions, while cash remains useful for small bakeries, market stalls, tips, local ferries and contingency purchases. Exchange rates and foreign-card charges depend on your bank; compare the final amount and decline unrequested dynamic currency conversion when your card provider offers a better rate.
Visitor InformationIstanbul is Türkiye's largest city, divided by the Bosphorus between European and Asian districts. Turkish is the official language, Istanbul uses Türkiye Time (UTC+3), and the principal international gateways are Istanbul Airport (IST) and Sabiha Gökçen Airport (SAW). The historic peninsula, Beyoğlu, Beşiktaş, Kadıköy and Üsküdar are different planning zones connected by rail, buses, ferries and bridges.
Visitor InformationTürkiye's public holidays include national days and religious holidays whose Gregorian dates move each year. Ramadan and Eid can change meal hours, mosque attendance, family schedules and evening traffic, while Republic Day and other national holidays can increase demand at major museums, squares and transport hubs. Check the official annual holiday calendar before fixing a museum-heavy itinerary.
Keep exploring Istanbul
Keep exploring Istanbul and add more stops to your plan.
Keep exploring Istanbul and add more stops to your plan.
Keep exploring Istanbul and add more stops to your plan.