As Bright As The Sun / When Is The Best Time To Visit Istanbul? / By Jennifer Hattam / Publisher Lonely Planet

The bustling streets of Istanbul are rarely quiet. This vibrant city bridges two continents and continues to attract flocks of visitors every year as there is never a shortage of incredible things to do.

But the city’s seasons will impact your visit quite dramatically. Wet and dark winters mean everyone flocks to indoor attractions, whereas the hot, sun-drenched summers see the beaches fill up and drinking and dining in the great outdoors.

When planning a trip, it’s worth noting the upcoming dates of the two biggest Muslim holidays, Ramazan Bayramı (Ramadan, or Eid Al Fitr) and Kurban Bayramı (Eid Al Adha), which shift by about 10 days each year.

Both are big travel periods in Türkiye, comparable to Thanksgiving or Christmas in the United States, with corresponding effects on costs, crowds and vacation-related closures.

Here are our picks for the best times to enjoy Türkiye’s largest city.

Summer is all about dining al fresco in Istanbul. paul prescott/Shutterstock

June to August is best for outdoor dining and concerts in Istanbul

Summer is the peak tourism season in Istanbul. Many residents decamp to vacation or family homes elsewhere in Türkiye, so accommodation costs can be high and lines long at major attractions.

The weather is hot and humid, but the sun sparkling off the Bosphorus is glorious, and a slew of outdoor seating at cafes, restaurants and bars makes for a lively urban scene.

The summer festival season kicks off in June with the classical-heavy Istanbul Music Festival and the Opera and Ballet Festival. Weekends see droves of locals heading to the Princes’ Islands, the Belgrad Forest, and parks and picnic areas around the city.

As the temperatures rise in July, those who can escape the city while the tourists pour in. The city sways as artists arrive for the Istanbul Jazz Festival and rooftop bars and Bosphorus-side cafes are the place to be.

Come August, you can hang by the river and cheer on the hardy souls taking part in the Bosphorus Cross-Continental Swimming Race. If the humidity becomes too much, take a ferry ride and enjoy the cooling breeze.

Shoulder seasons are perfect for sightseeing at Suleymaniye mosque in Istanbul. ozgurdonmaz/Getty Images

March to May and September to November are best for sightseeing

The long, mostly pleasant shoulder seasons are ideal for seeing the sights and wandering the neighborhoods of Istanbul, a city that rewards exploration by foot. There’s a drop off in tourist crowds, and local urban life is in full swing, including a busy calendar of arts and cultural events.

The Newroz festival in March marks the beginning of spring and the Kurdish (and Persian) new year, and indeed, things are starting to wake up in general throughout the city, with warmer days and livelier nights.

Tulips planted in parks across the city come into bloom in April, and the fair weather starts luring people outside, while the annual film festival draws them into cinemas as well.

Warm and sunny but not yet sweltering, May is an ideal time to visit Istanbul, with outdoor eating and drinking coming into full swing. Festival season starts to creep in before the packed schedule of June with Sonar Istanbul and Chill-Out Festival.

The start of the school year in September is also when Istanbul’s cultural calendar begins to get crowded again, especially in the alternating years when the Istanbul Biennial is held. Just about every gallery, museum and arts organization in the city takes that as an opportunity to open its own new exhibits and events as well. Sailors take to the river to battle it out in the Bosphorus Cup Regatta.

October’s still generally decent weather, with cooler evenings, means it’s the last hurrah of the year for most outdoor activities. Cinephiles are celebrated during the Filmekimi and Republic Day on the 29th sees hundreds of events pop up across the entire city.

November in Istanbul is not totally devoid of nice days, but you may be happy to see the ever-present şemsiye (umbrella) sellers who pop up – seemingly out of nowhere – at the first sign of rain.

The cooler weather is a blessed relief to the runners taking part in the Istanbul Marathon.

Istanbul’s museums are best visited inwinter without the crowds. Czgur/Getty Images

Winter in Istanbul is ideal for travelers on a budget

The gray, rainy and surprisingly chilly winter months aren’t the most appealing time to visit Istanbul, though they do lend the city a certain romantically melancholy mood. On the plus side, it won’t be difficult or expensive to find accommodations, and the city’s many museums, mosques and other sights provide plenty of indoor activities.

Istanbul becomes surprisingly festive during December even though Christmas isn’t celebrated by most of the city.

Come in from the cold to a steamy hammam and then spend the evening by the hot grill of an ocakbaşı, a traditional type of restaurant serving hearty plates of grilled meats.

January in Istanbul is usually quiet and cold with a chance of snow, though there’s always plenty of hot tea around to warm you up. Keep an eye out for salep, a creamy, cinnamon-topped hot drink served mainly in winter.

The winds off the Bosphorus are still bracing in February, but the meyhanes (taverns) are cozy, and their tables continue to be filled with the winter’s bounty of fresh fish.