Istanbul — Turkey
A strait runs through the middle of Istanbul, and it does more than separate Europe from Asia: it organises the working day. Ferries are the quickest way across, the two airports sit on opposite continents at 12 and 33 km from the centre, and November alone brings 119.7 mm of rain.
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Why go
Istanbul is not laid out like a European capital with a centre and suburbs. It is a set of districts facing each other across water, and the commute between them is a boat. That single fact changes how you should plan: an itinerary organised by ferry piers works, one organised by map distance does not, because a crossing that looks trivial can take far longer by road at the wrong time of day. The other distinguishing feature is the layering. The same site served as a Roman capital, a Byzantine cathedral city and an Ottoman imperial seat, and the great buildings were converted rather than replaced, which is why a single interior can carry mosaics and calligraphy on the same wall.
The city rewards visitors who enjoy large, noisy, working cities and who will genuinely use public transport. It works far less well for anyone expecting a compact walkable centre, visitors sensitive to crowds and street selling around the main monuments, and short-trip travellers hoping to cover both continents in two days.
Month-by-month climate
Summer here is drier than most people expect. August recorded 1.3 mm of rain and not a single rainy day, July 6.8 mm over one day, and both months are hot: 31.8 °C in July, 30.7 °C in August, with nights above 23 °C. The rise into summer is abrupt, from 20.9 °C in May to 28.2 °C in June, the sharpest step in the year.
Autumn reverses it. November takes the year's rain, 119.7 mm over 8 rainy days, December brings 76 mm but spread over 13 days, and January 68.8 mm over 10. Winter is cool rather than cold, 11.4 °C by day in January and 10.3 °C in February, which closes the year at its lowest. Across the year we measure 558.1 mm over 81 rainy days.
What that means for a suitcase: humidity in summer, then wind and rain on the water in late autumn, when crossing the Bosphorus becomes an outdoor activity.
| Month | Avg. high (°C) | Avg. low (°C) | Rainfall (mm) | Days ≥ 1 mm | Days ≥ 5 mm |
|---|---|---|---|---|---|
| Jan | 11.4 | 6.1 | 69 | 10 | 5 |
| Feb | 10.3 | 5.0 | 42 | 10 | 2 |
| Mar | 13.7 | 7.3 | 57 | 10 | 4 |
| Apr | 16.9 | 10.3 | 56 | 8 | 3 |
| May | 20.9 | 13.7 | 45 | 7 | 3 |
| Jun | 28.2 | 20.0 | 10 | 3 | 1 |
| Jul | 31.8 | 23.1 | 7 | 1 | 0 |
| Aug | 30.7 | 23.4 | 1 | 0 | 0 |
| Sept | 27.5 | 20.3 | 20 | 5 | 1 |
| Oct | 21.9 | 15.3 | 56 | 6 | 3 |
| Nov | 16.6 | 10.8 | 120 | 8 | 5 |
| Dec | 12.9 | 8.2 | 76 | 13 | 6 |
Source: Meteostat — Istanbul (Turkey) station, 12.4 km away, 3 sample years. Monthly totals rebuilt from daily averages. Data partly modelled (Meteostat, DWD/met.no).
When to go
May, June, September and October. May gives 20.9 °C with 7 rainy days, September 27.5 °C with 5, October 21.9 °C with 6. June is already warm at 28.2 °C and almost dry, 10.2 mm. July and August are hot and humid, though rain is close to absent. November is the one month to avoid if the Bosphorus is the point: 119.7 mm, and the ferries feel it.
The most favourable months, on these records
- May
- June
- September
- October
What to see in 2, 4 and 7 days
In 2 days
- Take the historic peninsula first: the great domed church-mosque, the imperial mosque facing it, and the palace above the water.
- Go underground into the Roman cistern, then walk down through the covered bazaar towards the spice market.
- Cross the Golden Horn on foot over the bridge, past the fishermen, and climb to the Galata tower.
- Second day, take a public ferry to the Asian side and spend it in Kadıköy's market streets.
- Finish with a Bosphorus ferry at dusk, on a scheduled service rather than a tourist cruise.
In 4 days
- Give a morning to the mosque complex on the third hill, with its terrace view over the Golden Horn.
- Walk Balat and Fener: painted houses, steep lanes, and the Greek and Jewish traces along the shore.
- See the mosaics in the former church near the land walls, the finest Byzantine work left in the city.
- Take a full Bosphorus ferry run to the top of the strait, with a fish lunch at the turnaround village.
- Book a hamam for a late afternoon, and eat that night at a meyhane rather than at a restaurant.
In 7 days
- Base yourself once and do not move hotel; crossing the city with luggage costs more than a night's saving.
- Ride out to the Princes' Islands, where private cars are banned and the pace drops abruptly.
- Walk a stretch of the land walls, the fortification that kept the city for a thousand years.
- Spend a full day on the Asian side: waterfront at Moda, tea gardens, and dinner where residents eat.
- Add the small palaces and pavilions along the strait, reachable by ferry and far less crowded.
- Keep an indoor day in reserve for late autumn, when 119.7 mm can arrive in November over 8 days.
- Leave the last morning free of plans: airport transfer times vary hugely with traffic and with the continent.
Getting there and around
Istanbul's main airport (IST) is 12 km from the centre on the European side, connected by metro and airport buses; Sabiha Gökçen (SAW) is 33 km away on the Asian side, which changes the transfer completely and can double the journey at peak hours. Check which one your ticket uses before booking anything. A third option, Yenişehir (YEI) at 100 km, is not a realistic entry point. In the city, a single rechargeable card covers metro, trams, buses and ferries, and the ferry is usually both the fastest and the best-value option.
Nearest airports
- ISTIstanbul New Airport12 km from the centre
- SAWSabiha Gokcen International Airport33 km from the centre
- YEIYenisehir Airport100 km from the centre
Budget
Country price level compared with France : −37 %
Price index for restaurants and hotels, France = 1000, from European purchasing power parities. It is a country average: it says nothing about one hotel in particular.
Estimates, and they move faster here than elsewhere. Eating and getting around cost visibly less than in western Europe, while hotels in the tourist districts are priced internationally. Near the historic peninsula or Galata, a comfortable double runs 70 to 160 € a night; the same standard on the Asian side costs less. Street food and neighbourhood restaurants run to a few euros a dish, a meyhane dinner far more. Public transport is cheap enough not to plan around.
Common mistakes
- Confusing the two airports. They are on different continents, 12 and 33 km from the centre, with very different transfers.
- Planning by map distance. A short crossing on paper becomes a long drive, while the ferry takes a fraction of the time.
- Staying only in the historic peninsula, and missing the Asian side, which is where the city actually lives.
- Ignoring mosque etiquette: shoes off, covered shoulders, a headscarf for women, and no visits during Friday prayers.
- Assuming a summer trip needs rain plans. August produced 1.3 mm and no rainy day at all.
Frequently asked questions
Is the Asian side worth crossing for?
Yes, and not as a curiosity. Kadıköy and the streets behind it have the food market, the bookshops and the bars that residents actually use, with far less pressure on visitors than the historic districts. The crossing itself is one of the best things in the city: a public ferry, a few minutes on deck, gulls and tea. Allow an evening rather than a quick hop.
How long does it take to see the main monuments?
Give the historic peninsula two full days and nothing is rushed: the great domed interior, the imperial mosque, the palace, the cistern and the bazaars. Add a third for the Byzantine mosaics near the land walls and the mosque complex on the hill. Queues at the main sites are the constraint, not distance, so start early and keep the afternoons for districts rather than monuments.
Is summer too hot?
It is hot and humid rather than dry: 31.8 °C in July and 30.7 °C in August, with nights above 23 °C, and almost no rain to break it. The water helps, and so do ferries, shaded courtyards and the covered markets. If you have the choice, September at 27.5 °C over 5 rainy days gives the same long days with a gentler middle of the day.
Updated on 21 September 2026