VacationSelector
The cathedral and Great St. Martin on the Rhine, Cologne
CologneThe cathedral and Great St. Martin on the Rhine
The Blue Mosque, Istanbul
IstanbulThe Blue Mosque

Photos: Cologne by Jörg Braukmann, CC BY-SA 4.0, cropped; Istanbul by AXP Photography, Pexels License.

Cologne or Istanbul?

Our verdict in twelve categories, each scored against the same fixed benchmark cities, and the climate month by month, so you can choose for your trip.

Choose Cologne for

  • day trips
  • families
  • getting around

What lies behind each score is written up on Cologne’s own page.

Choose Istanbul for

  • food and drink
  • beaches
  • shopping

What lies behind each score is written up on Istanbul’s own page.

Scoreboard

Twelve categories on one fixed scale from 0 to 100. The shaded stretch is the gap between the two.

Beaches & swimming. Cologne 14, Istanbul 45: Istanbul leads by 31 points.
Food & drink. Cologne 52, Istanbul 87: Istanbul leads by 35 points.
Culture & sights. Cologne 67, Istanbul 90: Istanbul leads by 23 points.
Nightlife. Cologne 66, Istanbul 77: Istanbul leads by 11 points.
Nature & outdoors. Cologne 56, Istanbul 52: Cologne leads by 4 points.
Day trips. Cologne 80, Istanbul 55: Cologne leads by 25 points.
Good for families. Cologne 70, Istanbul 55: Cologne leads by 15 points.
Getting around. Cologne 74, Istanbul 62: Cologne leads by 12 points.
Shopping & style. Cologne 57, Istanbul 86: Istanbul leads by 29 points.
Affordability. Cologne 46, Istanbul 60: Istanbul leads by 14 points.
Live music & performing arts. Cologne 68, Istanbul 62: Cologne leads by 6 points.
Wellness & relaxation. Cologne 50, Istanbul 75: Istanbul leads by 25 points.
0255075100

What lies behind each score is written up on the two cities’ own pages: Cologne and Istanbul.

Your match

Pick a travel style or drag the sliders, and both match scores follow your weighting.

Cologne
58match

Wins on day trips and families with your weighting.

Istanbul
Best match
67match

Wins on food and drink and beaches with your weighting.

What matters to you?

When should you go?

Pick your month. The climate figures are measured averages, not a forecast.

Cologne in July

25 °Cdaytime high
16 °Cnight-time low
81 mmrain in the month
7 hsunshine a day
No seasea
16 hdaylight a day

Istanbul in July

30 °Cdaytime high
21 °Cnight-time low
23 mmrain in the month
11 hsunshine a day
23 °Csea
15 hdaylight a day

Daytime high, °C

0°10°20°30°JFMAMJJASOND

Rainfall in the month, mm

0255075100125JFMAMJJASOND
CologneIstanbul

Temperature and rainfall are climate normals, averaged over the years shown. Cologne: 1991-2020 normals, Köln-Stammheim (5.4 km from centre). Istanbul: 1991-2020 normals, Istanbul / Goztepe (9.9 km from centre).

Before you go

MeasureCologneIstanbul
Official languageGermanTurkish
CurrencyEuro (EUR)Turkish Lira (TRY)
SocketsCF230 V, 50 HzCF230 V, 50 Hz
Driving sideRightRight
Time zoneUTC+1, UTC+2 in summerUTC+3
Emergency number112112
Elevation59 m100 m
Main airportCologne Bonn Airport (CGN)15 km from centre115 non-stop destinationsİstanbul Airport (IST)36 km from centre343 non-stop destinations
Public holidays this year11 days14 days

By the numbers

MeasureCologneIstanbul
City population1,025,52315,655,924
People per km²2,5322,930
Museums within 10 km4073
UNESCO World Heritage sites within 50 km31
Swim season, months above 21 °C-3 months

Where else could you go?

Every comparison below shares a destination with this one, so you can follow Cologne or Istanbul somewhere new.

Browse every destination

Sources

Structured data from Wikidata (CC0). Weather data by Meteostat. Meteorological data provided by NOAA, DWD and others. Rainfall where no rain gauge is within 25 km is from the TerraClimate 1991-2020 climatology (Abatzoglou et al. 2018, Scientific Data), read at the city. Airport data from OurAirports (public domain). Tourism statistics from Eurostat, © European Union, reused under CC BY 4.0. Public holidays from Nager.Date (MIT). Non-stop route lists from the "Airlines and destinations" tables on English Wikipedia airport articles, by Wikipedia contributors, reused under CC BY-SA 4.0. Currency from the ISO 4217 register maintained by SIX, cross-checked against country data from GeoNames (CC BY 4.0). Price level from World Bank open data (PPP conversion factor for private consumption and official exchange rate), CC BY 4.0. Time zones from GeoNames (CC BY 4.0); clock offsets computed from the IANA time zone database. Sea surface temperature from NOAA OISST v2.1, NOAA Physical Sciences Laboratory. Exchange rates via Frankfurter, based on European Central Bank reference rates. Daylight hours computed from each destination's latitude using the NOAA solar position algorithm.

Category scores are our editorial verdict under rubric v3, each placed against the same fixed benchmark cities; the climate figures are measured. How the scores are set. Snapshot generated 2026-10-31. Daily budgets are estimates from country price levels.