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Istanbul weather in January

Istanbul in January averages 7°C (44°F), 74 mm of rain and 2.5 hours of sun a day.

Of the twelve months in Istanbul, January is the fourth wettest and the second dullest.

Istanbul
Average temp
7°C (44°F)

4–9°C · 39–49°F

Rainfall
74 mm

Showers likely

Sunshine
2.5 h

hours per day

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What is Istanbul like in January?

Daytime

Days are cool.

Rain

Some rain is likely; pack for showers.

Evening

Evenings are cooler. A layer helps after sunset.

What should I pack for Istanbul in January?

  • A light rain jacket

    About 74 mm falls this month — showers rather than washouts.

  • A warm mid-layer

    Nights drop to around 4°C (39°F).

January compared with December and February

January in Istanbul is 1.7°C cooler than December and 26 mm drier than it, which averages 8°C (47°F).

January in Istanbul is about the same temperature as February and about as wet as it, which averages 7°C (44°F).

Daylight in Istanbul in January

On 15 January the sun is up for 9 hours 33 minutes in Istanbul, rising about 08:27 and setting about 17:59 local time.

January ends 46 minutes longer than it begins, so the last week of the month is a different length of day from the first.

That is 5 hours 34 minutes short of June, the longest-lit month here.

Where to stay in Istanbul

Dates are a starting point for January.

All hotels in Istanbul

Istanbul weather by month

TemperatureRainfall

Source: MeteostatPeriod: 1991-2020Checked: 2 Sept 2026358 places covered

How January compares with the rest of the year

January is highlighted. Every other month links to its own page.

Istanbul weather by month: average temperature, rainfall, sunshine for each month, from 1991–2020 climate normals
MonthAverageRainfall
January7°C / 44°F74 mm
February7°C / 44°F74 mm
March9°C / 47°F66 mm
April13°C / 55°F47 mm
May18°C / 64°F29 mm
June22°C / 72°F29 mm
July25°C / 77°F23 mm
August25°C / 78°F29 mm
September21°C / 70°F43 mm
October17°C / 62°F85 mm
November12°C / 54°F79 mm
December8°C / 47°F101 mm

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FAQs about Istanbul in January

January climate averages for Istanbul, 1991–2020.

Istanbul averages 7°C (44°F) in January, ranging from about 4°C (39°F) at night to 9°C (49°F) in the afternoon. That is a 1991–2020 average, so an individual week can run either side of it.

Some. About 74 mm falls across January, enough to need a light jacket but not enough to reshape a trip.

They are about the same. January averages 7°C (44°F) and February 7°C (44°F), so temperature alone will not decide between them.

January is 1.7°C cooler than December, and 26 mm drier.

It is outside the easiest window. The most comfortable stretch here is May to October; January sits outside it, which usually means more heat, more rain, or both — worth it if you would rather have the place to yourself.

About 2.5 hours of sun a day on the 1991–2020 average, so daylight is short on useful sun.

This page does not show today's weather. It is a 1991–2020 climate normal from Meteostat — a long-run average of what January is usually like, which is what you want when booking months ahead. For today or the coming week, check a live forecast.

About 9 hours 33 minutes of daylight in mid-January, against 15 hours 7 minutes in June and 9 hours 15 minutes in December.

On 15 January, sunrise is about 08:27 and sunset about 17:59 local time. Both shift across the month — the month ends 46 minutes longer than it starts.