What to do in Istanbul when it rains: 15 indoor ideas

When does it rain in Istanbul?

According to the climate normals of the Turkish State Meteorological Service (MGM), based on the period 1950-2025, December is the wettest month, with 99.2 mm of rain on average, ahead of January (88.8 mm), November (78.1 mm) and February (70.7 mm). January and December each have more than 15 rainy days on average. By contrast, July and August see only around twenty millimetres and fewer than 4 rainy days. October is the turning point, with 66.3 mm spread over 9 to 10 days. To choose your dates according to the weather, see our guide to the best time to visit Istanbul.

Sultanahmet: indoor monuments and museums

The old city has the most famous indoor sights, a few minutes' walk from one another: enough to spend a whole day with barely any need for an umbrella.

1. Hagia Sophia

Since January 2024, foreign visitors have entered Hagia Sophia through a separate entrance opposite the Fountain of Ahmed III and follow a route through the upper gallery, from which you look down on the great nave and the Byzantine mosaics. A ticket costs €25, free for children under 8; the Museum Pass is not valid here. As Hagia Sophia is a mosque, visits are suspended on Fridays in the late morning and early afternoon for the main weekly prayer, and modest dress is required, with a headscarf for women.

2. The Blue Mosque and the Süleymaniye

The Blue Mosque, opposite Hagia Sophia, and the Süleymaniye Mosque, the architect Sinan's masterpiece on the third hill, can be visited free of charge outside prayer times. Avoid Friday midday, cover shoulders and knees, and bring a bag for your shoes, wet or not: you take them off at the entrance.

3. The Basilica Cistern

Dug in the 6th century under Justinian, the Basilica Cistern is entirely underground: a forest of 336 lit columns, with the two reused Medusa heads at the foot of two of them. It is open daily from 9am to 10pm, with a break from 6:30pm to 7:30pm between the day and evening sessions. Entry is charged for foreign visitors, at a much higher rate than for Turkish citizens, and the evening session is sold separately. The Museum Pass is not valid here.

4. Topkapı Palace

Topkapı Palace alternates open-air courtyards and indoor rooms: in the rain, focus on the Harem, the Treasury and the relic rooms, and cross the courtyards quickly. The combined ticket for the palace, the Harem and Hagia Irene costs 2,750 TL for foreign visitors; the ticket office is open from 9am to 5pm and the palace is closed on Tuesdays.

5. The Archaeological Museums

Just below Topkapı, the Istanbul Archaeological Museums house among other treasures the Alexander Sarcophagus, discovered at Sidon. They are open daily from 9am to 6:30pm (ticket office closes at 5:30pm) and a ticket costs €15. Now restored, the Museum of the Ancient Orient and the Tiled Kiosk reopened in July 2026: all three buildings can be visited on the same ticket.

6. The Museum of Turkish and Islamic Arts

Housed in the Palace of Ibrahim Pasha, on the edge of the Hippodrome, the Museum of Turkish and Islamic Arts is known for its carpet collection, one of the most important in the world, as well as its manuscripts and works of art. It is open daily from 9am to 6:30pm (ticket office closes at 5:30pm); a ticket costs €17.

Covered bazaars and a hammam

7. The Grand Bazaar

With dozens of vaulted streets, its hans and thousands of shops, the Grand Bazaar is the natural refuge on a rainy day, and entry is free. Note that it is closed on Sundays and during religious holidays. For a break, its cafés serve tea and Turkish coffee right in the middle of the lanes.

8. The Spice Bazaar

The Spice Bazaar, or Egyptian Bazaar, in Eminönü, lines up spices, Turkish delight, dried fruit and teas under its 17th-century vaults. Unlike the Grand Bazaar, it also opens on Sundays, which makes it the best fallback that day. Free entry.

9. Cağaloğlu Hammam

Nothing warms you up like a hammam. Built in 1741 near Hagia Sophia, Cağaloğlu Hammam has separate sections for men and women and opens every day. Packages range from €95 to €400; booking is advisable on rainy days. What to expect at a first session is explained on our dedicated page.

Beyoğlu and the Bosphorus: art museums and palaces

10. Istanbul Modern

In its Renzo Piano building on the Bosphorus in Karaköy, Istanbul Modern presents art from Türkiye since 1945, photography and temporary exhibitions, with an open-access library, a cinema and a restaurant facing the water. It is open Tuesday to Sunday from 10am to 6pm, until 8pm on Fridays, and closed on Mondays. A ticket costs 1,000 TL for foreign visitors, 650 TL at the reduced rate; free for children under 12. Also in Karaköy, Salt Galata, housed in the former headquarters of the Imperial Ottoman Bank, offers free exhibitions from Tuesday to Sunday.

11. Pera Museum

Near İstiklal Avenue, Pera Museum displays a collection of Orientalist painting, including Osman Hamdi Bey's "The Tortoise Trainer", alongside temporary exhibitions. It is open Tuesday to Saturday from 10am to 7pm, until 10pm on Fridays, and on Sundays from noon to 6pm; it is closed on Mondays. A ticket costs 450 TL (250 TL reduced) and entry is free on Fridays from 6pm to 10pm.

12. The Museum of Innocence

In Çukurcuma, Orhan Pamuk's Museum of Innocence extends his novel of the same name: display cases of everyday Istanbul objects from the 1950s to the 1980s. Open Tuesday to Sunday from 10am to 6pm (last entry 5:30pm), closed on Mondays; a ticket costs 800 TL for foreign visitors, an audio guide 50 TL. The ticket printed in the novel is stamped at the desk and gets you in.

13. Dolmabahçe Palace

Dolmabahçe Palace, the residence of the last sultans in the 19th century, is visited almost entirely indoors: the state rooms of the Selamlık, the Harem, then the Painting Museum. The ticket covering all three costs 2,000 TL for foreign visitors; the ticket office is open from 9am to 5pm and the palace is closed on Mondays. Entry is free up to the age of 6.

14. Galata Tower, when the rain lets up

The balcony of Galata Tower is exposed to wind and rain, but inside, the tower presents its history over several floors. Save it for a dry spell: the view over a city washed by the shower is often the clearest of the week. Tickets cost €30, daily from 8:30am to 10pm (last entry).

On the water, under cover

15. A ferry with an enclosed saloon

The city's public ferries have enclosed, glazed saloons: crossing from Karaköy or Eminönü to Kadıköy, on the Asian shore, is still a lovely outing even in a downpour, with a tea in hand, served on board. You pay with the Istanbulkart, at the standard public transport fare. For a longer trip, our page on the Bosphorus cruise compares public ferries and private boats, and our guide to transport in Istanbul explains how the Istanbulkart works.

Summary table

Prices checked in October 2026 on the official websites of each place; prices in Turkish lira change often because of inflation.

Our tips for a rainy day

• On Mondays: Istanbul Modern, Pera Museum, the Museum of Innocence and Dolmabahçe are closed. Stay in Sultanahmet: Topkapı, the Archaeological Museums, the Turkish and Islamic Arts Museum and the cistern are open.
• On Tuesdays: Topkapı is closed; go for the Archaeological Museums, Hagia Sophia and the Beyoğlu museums.
• On Sundays: the Grand Bazaar is closed, but the Spice Bazaar stays open.
• On Fridays: the mosques and Hagia Sophia are closed to visitors during the main midday prayer; it is a good time for Istanbul Modern or Pera Museum, both open late that day.
• The Museum Pass Istanbul (€105, valid for 5 days from the first visit) covers Topkapı, the Archaeological Museums, the Museum of Turkish and Islamic Arts and Galata Tower, but neither Hagia Sophia nor the Basilica Cistern.
• Shoes: the cobblestones and steep streets of Sultanahmet and Galata get slippery in the rain; wear soles with good grip, and bring a bag to carry them in the mosques.
• Cafés: between two visits, a tea in a tea house or a Turkish coffee in one of the Grand Bazaar's cafés is a good way to wait out a shower.

Further reading

To fit these visits into a trip, follow our Istanbul in 2 days itinerary, which groups the sights by area. If the rain gives you a break, our guide to Galata and Karaköy suggests a walk between two museums, and our free things to do in Istanbul lists mosques, parks and neighbourhoods to explore without a ticket.