Should you go to Istanbul in December?

The fact that decides it

Turkey’s public holidays are set by law, and the list is short: New Year’s Day, the two religious holidays, and six national days across April, May, July, August and October. Run your eye down it and you will notice something.

December is empty. There is no statutory public holiday anywhere in the month, in 2026 or 2027.

That includes Christmas. Turkey is not a Christian country and 25 December is an ordinary working day — a Friday in 2026, a Saturday in 2027 — with showrooms open, workshops running and cargo companies collecting. The same goes for 31 December: a full working day, not even a half day. The only day that stops is 1 January.

Your dead week is their working week. That is the entire argument, and it is worth more than any discount you will negotiate.

Think about what that means practically. Between 22 and 31 December most European buyers are not at their desks. Suppliers who spend the rest of the year juggling fifteen conversations at once have a thinner inbox. You get attention, you get appointments at the time you asked for, and you get the owner rather than whoever was free.

One caveat worth taking seriously: the statutory list is the floor, not the ceiling. Turkey can declare administrative holidays or bridge days by decision, and individual companies close when they like. So get each supplier’s own yılbaşı dates in writing rather than assuming either a European-style shutdown or an uninterrupted month.

What December actually costs you

Here is the bill, from the Turkish meteorological service’s own long-run averages for Istanbul, measured over 1950 to 2025. Five months shown; December’s 99 mm is the highest of all twelve.

December is the wettest month of the Istanbul year. January has slightly more rainy days but less rain overall, which tells you something useful: December rain arrives in heavier bursts rather than drizzling all month. Roughly one working day in two will see some. It is not cold — around 12°C by day, 6°C at night — but it is a wet cold, and the discomfort is your feet, not your hands.

Lying snow in central Istanbul in December is uncommon; it is more a January and February thing. Cold snaps with sleet do happen in the last week.

The second cost is traffic, and this one is worse than people expect. Istanbul ranks first in the world on TomTom’s congestion index, and December is among its worst months — around 70% congestion in the 2025 figures against 56% in August, with November much the same. Add rain and the city seizes: on one wet December morning the city’s own traffic-density index hit 78%, and 87% on the Asian side. A taxi from Merter to Osmanbey on a rainy December evening is not a twenty-minute journey.

The fix is simple and worth planning around: cluster your appointments by district. A Merter day and an Osmanbey day, not three crossings a day. Use the metro and Marmaray rather than taxis, and do not schedule anything that needs a cross-city hop at five in the afternoon. If a ferry is part of your route, have a rail fallback — the lodos storms cancel sailings at no notice.

The light problem nobody warns you about

This is the December detail that actually affects what you buy, and I have never seen it written down anywhere.

Istanbul gets about nine and a quarter hours of daylight in late December, and only about two hours of sunshine within it. Most of your working day is under a grey sky. Then you step into a showroom lit by fluorescents. You are assessing colour in the worst conditions of the year, which is how a navy that looked right in Merter turns out to be a slightly purple navy when it lands in your shop in February.

Two things help. Carry a colour reference — a swatch of something you already sell, or a garment in the shade you are trying to match — and check against it rather than against memory. And take the piece to a window before you commit, or photograph it in daylight outside the door. It takes thirty seconds and it is the single most useful habit for a winter buying trip.

The other half of the daylight story is counter-intuitive and genuinely useful. Turkey has been on permanent UTC+3 since 2016, so the clock is pushed late against the sun. In late December the sun does not rise in Istanbul until about 08:25 — later than in London — but it does not set until about 17:40. So the problem is the morning, not the evening. A 09:00 appointment is in poor, low light. The back end of the day holds up far better than you would fear, and you can still be walking the Bosphorus at half five.

What is on the rails in December

Be clear-eyed about this, because it is the real argument against going.

December sits in the trough. Autumn and winter stock has been selling since September, so what is on the rails has been there a while. The next-season moment — new spring and summer ranges, the samples, the buzz — happens in February and March, not December. IFCO, the main Istanbul apparel fair, runs 3 to 6 February 2027, and Texhibition, the fabric and trims fair, follows on 3 to 5 March 2027.

No adult-apparel or fabric fair runs in Istanbul in December. The exception worth knowing is childrenswear: CBME Türkiye, the children’s, baby and maternity fair, sits just before the window on 11 to 13 November 2026. Aggregator sites still list a December children’s fashion fair, but it does not appear on the venue’s own calendar, so check with the organiser before booking around it. If a trade fair is the point of your trip, December is the wrong month and February is the right one.

So December is a showroom and factory trip, not a discovery trip. That makes it good for some things and poor for others:

• Good for: restocking winter lines that are already selling for you, buying carryover and end-of-run stock, meeting suppliers properly for the first time, walking districts and building the list you will buy from in spring.
• Poor for: seeing next season first, placing production orders you need delivered before spring, or anything where you want the newest thing on the market.

And if you are going specifically to meet people rather than to buy, December is arguably the best month of the year for it, for the reason at the top of this post.

Year-end, and the price reset in January

Two things happen in Turkey at the end of December that a buyer should know about.

The first is the accounting close. Turkish companies have to take a full inventory at the end of their accounting period, which for most of them is 31 December, along with reconciling cash, revaluing foreign currency and agreeing balances with customers and suppliers. The obligation is real, if less rigid than it sounds — some firms run a different accounting year, large stores may count physically only every third year, and in practice the 31 December count is often done on 2 January. Whether it makes a given Merter showroom slower to pick and invoice in the last week of the month, I honestly do not know — I could not find anyone who has written it down, and I am not going to invent it. Ask your supplier directly what their last shipping day is. It is a normal question and they will have an answer.

The second is more interesting. Turkey announces its minimum wage for the following year in the second half of December — the 2026 rate came on 23 December 2025, and it has landed as early as the 16th. That resets the labour cost underneath every price you have just been quoted. Whether and how fast it feeds through to wholesale prices in January is not something I can show you data for, but it is a legitimate thing to raise, and a legitimate reason to pin a price before the year turns rather than after. If you are planning a repeat order for January anyway, December is the month to agree it.

Two things people get wrong about December

Both of these get repeated in travel write-ups and both are wrong, and knowing that saves you money.

“December is the cheapest time to fly.” It is not. On the fare data I could find for UK routes, January comes out cheapest, not December — almost certainly because the New Year week drags the December average up. This varies a lot by departure city, so check your own route rather than trusting any month-by-month ranking, including mine. What is worth doing either way is pricing the first three weeks and the last week of December separately, because they are not the same market.

“December is Istanbul’s quiet month.” Also not true. Istanbul took about 1.49 million foreign visitors in December 2025, which is more than January, February, March or November took. The genuine tourist trough is January to March, with March the quietest. December sits in the bottom third — eighth of twelve, quieter than every month from April to October, but busier than November, January, February and March. Book accommodation with that in mind, and price 30 December to 2 January as its own thing.

How to work a December week

• Go in the third or fourth week. That is where the advantage is. If you can work between 22 and 31 December, you are in front of suppliers at the one time of year when almost no European buyer is.
• Waterproof shoes, and a second pair. This is the most important thing in this list. Half your working days will see rain, you will be on foot between buildings all day, and wet shoes do not dry overnight in a hotel room.
• A shell, not a parka. Twelve degrees and wet is jacket weather. You will be indoors most of the day, so layers you can take off beat insulation you cannot.
• Something waterproof for the paper. Order sheets, swatches, business cards. A dry bag or even a zip folder.
• A colour reference. See above. The one professional habit that December specifically demands.
• Cluster by district, travel by rail. December traffic is the worst of the year and rain makes it worse.
• Ask about yılbaşı early. Each supplier’s own closing dates, in writing, before you book flights around them.
• Agree January prices in December if you intend to reorder, given the wage announcement at the end of the month.

And one thing that is simply pleasant rather than useful: the sun sets over the Bosphorus at about twenty to six, the city is not at tourist pitch, and after a day of showrooms you can sit somewhere warm by the water without queueing for it. That is not why you are going. It is a decent way to end a buying day all the same.

Common questions

Is December a good time to buy wholesale in Istanbul?

Yes, with one trade-off. There is no Turkish public holiday in December, and 25 December is an ordinary working day, so the week most European buyers are off is a full working week in Merter and Osmanbey. The cost is weather: December is Istanbul's wettest month, around 99 mm of rain across about 15 rainy days, and its worst month for traffic.

Do Turkish suppliers close for Christmas?

No. Christmas is not a public holiday in Turkey and 25 December is a normal working day. The only statutory holiday in this period is 1 January. 31 December is a full working day. Individual companies may close for longer around New Year, so ask each supplier for their own dates in writing.

What is the weather like in Istanbul in December?

Mild but wet. Average high around 11.8°C and low around 6.5°C, with roughly 99 mm of rain over about 15 rainy days — the wettest month of the year in Istanbul. Snow in the city centre is uncommon in December and more likely in January or February. Expect about nine and a quarter hours of daylight, with sunrise near 08:25 and sunset near 17:40 in late December.

Are there any clothing trade fairs in Istanbul in December?

No adult-apparel or fabric fair runs in Istanbul in December. The main apparel fair, IFCO (Istanbul Fashion Connection), runs 3 to 6 February 2027 at the Istanbul Expo Center, and Texhibition, for fabric and trims, follows on 3 to 5 March 2027. For childrenswear, CBME Türkiye runs 11 to 13 November 2026. A December trip is a showroom and factory trip rather than a fair trip.

Is December the cheapest month to fly to Istanbul?

No. On aggregated fare data January and November are cheaper, most likely because the New Year period raises the December average. Early and mid-December is low season and cheaper than spring or autumn, but the last week of the month is not. Price the two halves of the month separately.