The best times to visit Istanbul for ideal weather are
April 16th to July 1st
August 27th to November 25th
based on average temperature and humidity from NOAA (the National Oceanic and Atmospheric Administration). Read below for more weather and travel details.
Istanbul Travel Guide
Other Istanbul Travel Info
Weather in Istanbul
Average temperatures in Istanbul vary greatly. Considering humidity, temperatures feel nice most of the year, excluding some cold weeks in the winter, with a low chance of precipitation most of the year. The area is somewhat temperate — in the 44th percentile for pleasant weather — compared to tourist destinations worldwide. Weeks with ideal weather are listed above. If you’re looking for the very warmest time to visit Istanbul, the hottest months are August, July, and then June. See average monthly temperatures below. The warmest time of year is generally late July where highs are regularly around 89.1°F (31.7°C) with temperatures rarely dropping below 73.3°F (22.9°C) at night.
Istanbul Temperatures (Fahrenheit)
Istanbul Temperatures (Celsius)
The way we experience weather isn’t all about temperature. Higher temperatures affect us much more at higher humidity, and colder temperatures feel piercing with high winds. Our perceived temperatures factor in humidity and wind chill to better represent how hot or cold the day feels to a person.
Istanbul Perceived Temperature (F)
Istanbul Perceived Temperature (C)
Average Istanbul Temperatures by Month
Daily highs (averaged for the month) usually give the best indication of the weather. A significantly lower mean and low generally just means it gets colder at night.
|Month||Avg. High (°F)||Avg. Mean (°F)||Avg. Low (°F)|
|Month||Avg. High (°C)||Avg. Mean (°C)||Avg. Low (°C)|
Precipitation (Rain or Snow)
If dry weather is what you’re after, the months with the lowest chance of significant precipitation in Istanbul are July, August, and then May. Note that we define “significant precipitation” as .1 inches or more in this section. The lowest chance of rain or snow occurs around mid to late August. For example, on the week of August 20th there are no days of precipitation on average. By contrast, it’s most likely to rain or snow in late January with an average of 2 days of significant precipitation the week of January 22nd.
When can you find snow in Istanbul? Weather stations report a good amount of seasonal snow likely to be deepest around February, especially close to mid February. The best time to ski (if at all) in Istanbul is often around around January 22nd when fresh powder is deepest. Please note that a value of 0 for snow in the graph below may either mean there was no snow, or that snow is unreported.
Chance of Precipitation
The graph below shows the % chance of rainy and snowy days in Istanbul.
Snow on the Ground
The graph below shows the average snow on the ground in Istanbul (in).
Average Rain and Snow by Month
|Month||Daily Chance of Rain||Average Snow Depth (in)||Total Precipitation (in)|
|Month||Daily Chance of Rain||Average Snow Depth (cm)||Total Precipitation (cm)|
Humidity and Wind
Istanbul has some slightly muggy months, with moderately humid months on the other side of the year. The least humid month is July (49.6% relative humidity), and the most humid month is January (66.4%).
Wind in Istanbul is usually moderate. The windiest month is August, followed by February and July. August’s average wind speed of around 9.5 knots (10.9 MPH or 17.5 KPH) is considered “a gentle breeze.” Maximum sustained winds (the highest speed for the day lasting more than a few moments) are at their highest in late January where average top sustained speeds reach 17.1 knots, which is considered a fresh breeze.
Relative Humidity (%)
The graph below shows the average % humidity by month in Istanbul.
The graph below shows wind speed (max and average) in knots.
Average Wind Speeds
Show Wind Speeds
All wind speeds are in knots. 1 knot = 1.15 MPH or 1.85 KPH.
|Month||Avg. Wind||Avg. Wind Feel||Sustained High Wind||High Wind Feel|
|Jan||8.9||Gentle breeze||15.2||Significant breeze|
|Feb||9||Gentle breeze||15.5||Significant breeze|
|Mar||8||Gentle breeze||14.2||Significant breeze|
|Apr||7.7||Gentle breeze||13.7||Significant breeze|
|May||6.9||Light breeze||12.8||Significant breeze|
|Jun||7.9||Gentle breeze||13.7||Significant breeze|
|Jul||8.9||Gentle breeze||15||Significant breeze|
|Aug||9.5||Gentle breeze||15.6||Significant breeze|
|Sep||8.5||Gentle breeze||14.6||Significant breeze|
|Oct||8.5||Gentle breeze||14||Significant breeze|
|Nov||7.9||Gentle breeze||13.6||Significant breeze|
|Dec||8.8||Gentle breeze||15.2||Significant breeze|
Show Relative Humidity by Month
|Month||Avg. Relative Humidity|
Is it Safe to Travel to Istanbul?
Our best data indicates this area is somewhat safe, but with extra warnings in a few regions. As of Oct 07, 2019 there are travel warnings and regional advisories for Turkey; exercise a high degree of caution and avoid some areas. Check this page for any recent changes or regions to avoid: Travel Advice and Advisories. This advisory was last updated on Oct 02, 2019.
The Busiest and Least Crowded Months
The busiest month for tourism in Istanbul, Turkey is May, followed by June and July. Prices for hotels and flights will be most expensive during these months, though you can save if you purchase well in advance. Tourists are unlikely to visit Istanbul in October. Those willing to visit at these times will likely find it the least expensive month.
Estimated Tourism by Month
Most Popular Months to Visit
Overall Istanbul Travel Experience by Season
Spring (March through May)
Humidity and temperatures combine to make this season feel moderate. Highs range from 76.9°F (24.9°C) and 51.6°F (10.9°C) with warmer temperatures in the later months. Rain is somewhat common with 3 to 6 days of significant precipitation per month. Spring is the busiest for tourism, which makes it a good time for those looking for things to do.
Summer (June through August)
The middle-year months have very comfortable weather with high temperatures that are quite warm. These months see the least precipitation with 1 to 3 days of precipitation per month. June – August is the second busiest season for tourism in Istanbul, so lodging and other accommodations may cost slightly more.
Fall (September through November)
Fall daily highs range from 82.8°F (28.2°C) and 58.1°F (14.5°C), which will feel comfortable given the humidity and wind. It rains or snows a significant amount: 4 to 6 days per month. Tourism is the slowest during these months due to the weather, so hotels may be affordably priced.
Winter (December through February)
Weather is too cold this time of year in Istanbul to be enjoyable for warm weather travelers. The average high during this season is between 56.8°F (13.8°C) and 47.9°F (8.8°C). On average, it rains or snows a fair amount: 6 to 7 times per month. These times of year are fairly slow with tourists.