City in Tyrkia

Istanbul Vær Værmelding

Istanbul weather: 18°C, delvis skyet. Time for time forecast, 14-day outlook, UV, air quality and the best time til visit.

⛅ 18°C now🕔 11:42 AM local📅 Best: juni, juli and august👥 15.6 million

Istanbul weather in januar

11°
average high · low 5°C
★★★☆☆
ranked #12 of 12 months

A workable month, med trade-offs.

Average high11°C
Average low5°C
Mean8°C
Regnfall110 mm

januar runs 8°C cooler than the annual average in Istanbul.

Vær map for Istanbul

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Animated layers by Vindy. For pin-level detail and nearby places, see the interactive map below.

Klima in Istanbul month by month

Average high, average low and total rainfall, based on three years of reanalysis data.

janfebmaraprmaijunjulaugsepoktnovdesLine: average high · Bars: rainfall
MånedAvg highAvg lowRegnfallRating
januar11°5°110 mm★★★☆☆
februar11°5°71 mm★★★☆☆
mars14°6°81 mm★★★☆☆
april18°9°56 mm★★★★☆
mai22°13°67 mm★★★★☆
juni29°19°7 mm★★★★★
juli31°21°23 mm★★★★★
august30°22°12 mm★★★★★
september26°18°45 mm★★★★☆
oktober21°14°65 mm★★★★☆
november17°11°128 mm★★★☆☆
desember12°7°103 mm★★★☆☆

Klima type: Mediterranean. Kilde: Open-Meteo archive (ERA5).

Beste tid å besøke Istanbul

Go in juni, juli and august. These months score highest on comfortable temperatures, low rainfall and useful daylight.

Hardest months: januar, februar and desember - expect the least comfortable mix of heat, cold or rain.

januar★★★☆☆
februar★★★☆☆
mars★★★☆☆
april★★★★☆
mai★★★★☆
juni★★★★★
juli★★★★★
august★★★★★
september★★★★☆
oktober★★★★☆
november★★★☆☆
desember★★★☆☆

What til pack, what til skip

Pack for the next 7 days
  • Normal seasonal clothing - nothing unusual is needed this week
Worth avoiding
  • If your dates are flexible, avoid januar, februar and desember - historically the least comfortable months here.

How Istanbul compares med nearby places

Annual averages, and the difference against Istanbul.

PlaceDistanceAvg tempvs hereAnnual rain
Romania447 km14°C3°C cooler626 mm
Bulgaria505 km12°C4°C cooler567 mm
Mykonos506 km19°C+3°C warmer402 mm
Rhodes513 km21°C+5°C warmer469 mm
Athens International Airport551 km18°C+2°C warmer487 mm

Se prognosen for Istanbul etter tidsintervall

Istanbul weather - more answers

Explore Istanbul

Every topic we hold for this place, and the same topic for the places around it.

Vær for related places

Frequently asked questions

Where is Istanbul?

Istanbul is a city in Tyrkia. Its coordinates are 41.0082, 28.9784. It lies in Europa.

What is the weather like in Istanbul akkurat nå?

It is currently 18°C (64°F) med delvis skyet. Luftfuktighet is 68% and wind is 20 km/h.

When is the best time til visit Istanbul?

juni, juli and august offer the most comfortable conditions in Istanbul, which has a Mediterranean climate. januar, februar and desember are usually the hardest months for outdoor plans.

What time zone is Istanbul in?

Istanbul observes Europe/Istanbul (UTC+03:00). The local time is 11:42 AM.

How many people live in Istanbul?

Istanbul has a population of approximately 15.6 million.

What is the nearest airport til Istanbul?

The closest airports are Istanbul Airport (IST), 35 km away.

What are the top things til do in Istanbul?

Popular options include Blue Mosque and Hagia Sophia.

What places are in Istanbul?

Istanbul covers 3 places in this atlas, including Blue Mosque, Hagia Sophia and Istanbul Airport.

Related articles

Data sources and methodology

Place dataUSPOTUS Atlas dataset (cities-world) - coordinates, hierarchy and facts.
Værmelding and observationsOpen-Meteo (ECMWF and national models).
Luftkvalitet and pollenCopernicus CAMS via Open-Meteo. US AQI scale.
Klima averagesERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years.
MethodScores, comparisons and advice on this page are computed from the inputs above. Distances are straight-line. Nothing is estimated where data is missing - the block is simply not shown.

Last updated oktober 1, 2026 at 11:42 AM local time. Live blocks refresh every 15 minutes; climate averages monthly.

Davil Hofile
Written byWriter at USPOTUS

Davil Hofile is a writer at USPOTUS covering breaking news, NFL updates, viral stories, entertainment, pets, and lifestyle. He specializes in transforming complex news into clear, trustworthy, and engaging articles that help readers quickly understand what's happening across the United States. His reporting follows Google's E-E-A-T guidelines, emphasizing accuracy, credible sources, and practical value for readers.

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