Weather and Climate in Istanbul

The climate of Istanbul is transitional. Due to its geographical location of being nearby the black sea, the humid Balkan peninsula and Mediterranean climate from the south-west, the weather in Istanbul is hot and humid in summer and mild, relatively rainy in winter. The monthly average temperature ranges from 8 °C in January to 28 °C in July and August.


Weather and Climate in Istanbul

Above you may see the Istanbul’s average temperatures. The temperatures in the table above are the average temperatures and they can vary somewhat around these values.

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Istanbul Weather by Month

Istanbul Weather in January

January is the coldest month in Istanbul, together with February, and with an average temperature of 8°C and precipitation 105 mm. Although you will face low temperatures, you can be sure that there are not much snow and it rarely gets below freezing in Istanbul. The snow is low and rainfall is medium. You can also see the sunshine half of the month. We recommend you to bring a winter coat and portable umbrella when traveling to Istanbul in January. The days are shorter than the summer months, the sun set around 17:30.
(Average Max Temp.: 8°C – Average Max Temp.: 3°C)


Istanbul Weather in February

February is still the coldest month in Istanbul after January, and with an average temperature of 8°C and precipitation 78 mm. Although you will face low temperatures, you can be sure that there are not much snow and it rarely gets below freezing in Istanbul. The snow and rainfall is also lower than January. You can also see the sunshine half of the month. We recommend you to bring a winter coat and portable umbrella when traveling to Istanbul in February. The days are shorter than the summer months, the sun set around 18:00.
(Average Max Temp.: 8°C – Average Max Temp.: 3°C)

Istanbul Weather in March

March is the coolest of the spring months in Istanbul, and with an average temperature of 11°C and precipitation 72 mm. It snows in the recent years, but it rarely gets below freezing in Istanbul. Although March is the start of the spring months, it passes cold and you should precaution before traveling to Istanbul in March. You can enjoy more sunny and clear days compared to winter months. We recommend you to bring a medium coat and portable umbrella. Also take sweater for some warmer days. The days are started to get longer than the winter months, the sun set around 18:45.
(Average Max Temp.: 11°C – Average Max Temp.: 4°C)

Istanbul Weather in April

April is a very nice spring month in Istanbul, and with an average temperature of 16°C and precipitation 46 mm. The temperature gradually rises through the month. The city becomes lively on the shore, outdoor cafes and terrace bars, enjoying the weather, parades and festivals. Great for strolling and exploring in the city. The sun is mild, the weather has cooled down but still it is not time for summer dressings. You can enjoy sunny and clear days. But April also has rainfall mostly in the afternoons. We recommend you to bring shorts, dresses, t-shirts for warm afternoons, long pants for cooler nights and light coat in case of rainfalls. The days are longer enough, the sun set around 19:20.
(Average Max Temp.: 16°C – Average Max Temp.: 8°C)

Istanbul Weather in May

May can be considered as the unofficial start of the summer in Istanbul, and with an average temperature of 20°C and precipitation 34 mm. May is great for city sightseeing and museum hopping, staying outdoors, and a good month for some popular festivals and events. You can enjoy sunny and clear days. We recommend you to bring shorts, dresses, t-shirts for warm afternoons. Also take long pants for some cooler nights, and umbrella just in case. The days are started to get longer than the winter months, the sun set around 20:15.
(Average Max Temp.: 20°C – Average Max Temp.: 12°C)

Istanbul Weather in June

June is the official start of the summer in Istanbul, and with an average temperature of 26°C and precipitation 36 mm. June is also great for city sightseeing, outdoors activities, and a good month for some popular festivals and events. You can enjoy sunny and clear days. Rain is very less. We recommend you to bring summer clothing, shorts, dresses, t-shirts for warm afternoons and nights. Also take long pants for some cooler nights. The days are longer, the sun set around 20:40.
(Average Max Temp.: 25°C – Average Max Temp.: 17°C)

Istanbul Weather in July

July is the hottest month in Istanbul, together with August and with an average temperature of 28°C and precipitation 34 mm. July can be hot and muggy, though it is the best time for spending your days in the beaches and outdoors. The extra humidity can make the temperature seem even hotter. You can enjoy very sunny and clear days. is also time for outdoor concerts, parades, and variety of music concerts and festivals. The city is very crowded and busy with the tourists and with the locals in all around. We recommend you to bring summer clothing, shorts, dresses, t-shirts, beachwear, sandals for hot days and nights. The days are started to get little shorter but still very long, the sun set around 20:25.
(Average Max Temp.: 28°C – Average Max Temp.: 20°C)

Istanbul Weather in August

August is still the hottest month in Istanbul after July, and with an average temperature of 28°C and precipitation 40 mm. August can be hot and muggy, though it is the best time for spending your days in the beaches and outdoors. The extra humidity can make the temperature seem even hotter. You can enjoy very sunny and clear days. is also time for outdoor concerts, parades, and variety of music concerts and festivals. The city is crowded and busy with the tourists and with the locals in all around. We recommend you to bring summer clothing, shorts, dresses, t-shirts, beachwear, sandals for hot days and nights. The days are started to get little shorter but still very long, the sun set around 20:00.
(Average Max Temp.: 28°C – Average Max Temp.: 20°C)


Istanbul Weather in September

September is the start of Autumn, a great month after very hot summer season, and with an average temperature of 25°C and precipitation 64 mm. The early September can still be hot and muggy, but it starts to cool down after the first week and it becomes very ideal for strolling and exploring the city on foot. The weather also becomes unpredictable that while one week is sunny, it can be rainy with thunderstorms. The city is less crowded with locals due the school fervor of the parents. We recommend you to bring shorts, dresses, t-shirts for warm afternoons, long pants for cooler nights and light coat and portable umbrella in case of rainfalls. The days are more shorter than in August, the sun set around 19:25.
(Average Max Temp.: 24°C – Average Max Temp.: 17°C)

Istanbul Weather in October

October is a lovely month for the ones who like to enjoy and explore the city in a cool weather, but still shining. October is also a shoulder season, which is perfect for travelers wishing to explore Istanbul without so much crowds and queues. Average temperature is 19°C and precipitation 87 mm. The weather is more rainy compared to September. We recommend you to bring a medium coat and portable umbrella. Also take sweater for some warmer days. The days are shorter now, the sun set around 18:30.
(Average Max Temp.: 19°C – Average Max Temp.: 13°C)

Istanbul Weather in November

November becomes a more harder month for both locals and travelers due to its being the early start of winter, and with an average temperature of 14°C and precipitation 102 mm. The weather is gradually become colder and the city quiets down. We recommend you to bring a balancing wear in between cold and little cold, like a medium coat and portable umbrella. The days are short, the sun set around 17:50.
(Average Max Temp.: 15°C – Average Max Temp.: 9°C)

Istanbul Weather in December

December is the start of winter, as well as a fantastic month with Christmas and New Year fervor in the city. Average temperature is 10°C and precipitation 123 mm. The weather is cold, little snow. We recommend you to bring a winter coat and portable umbrella. Also take sweater for some warmer days. The days are still short but started to get longer, the sun set around 18:30.
(Average Max Temp.: 11°C – Average Max Temp.: 5°C)

Best Time to Visit Istanbul

We can say that, the best time to visit Istanbul is from late April to early September as the weather will be good for the ones to enjoy sightseeing, beaches, outdoor events and festivals. Summer, from July to August, can be hot and muggy, though it is the best time for spending the time in the beaches around Istanbul. The extra humidity in July and August make the temperature seem even hotter. If you decide to visit Istanbul in July or August, you should make sure to choose a hotel room with air conditioning. Winter is usually mild and rainy, but sometimes it can get a bit cold and it can snow. Read more on our Best time to visit Istanbul page.