Planning a trip to Istanbul in October? You are in luck! The weather is generally good, with an average maximum temperature of +66°F and approximately 12 sunny days. Just be prepared for some rain, as there are usually around 10 rainy days and 57 mm of precipitation. Expect good weather and pack accordingly to enjoy the outdoors. Search flightsin one click on Avionero.
Average weather
☀️
+66°F
Avg. max. temperature
+41°F
Min.
+88°F
Max.
57 mm
Total precipitation
73%
Avg. humidity
3 m/s
Avg. wind
12 ☀️
Sunny Days
8 ⛅️
Cloudy
10 🌦
Rainy
Our opinion: Istanbul has good weather in October.
Avionero – A better way to search for flights:
Cheapest prices on the market!
Check all your dates and date combinations in a single search!
Want inspiration, set your dates and find the cheapest destinations!
Saves your searches in the browser so you can easily return to them!
Average temperature in Istanbul in October
Here are the expected maximum, average and minimum temperatures in Istanbul for October based on the historical data.
Last Year
Historical Data
Going from a maximum of +77°F during the day to a minimum of +57°F during the night, the temperature in October averages around +72°F.
The average maximum temperature goes down 9% by the end of the month, compared with the beginning of the month, from +72°F to +70°F.
Is Istanbul warm or cold in October?
Istanbul is typically mild in October.
Maximum temperatures go down compared to the previous month from +75°F to +66°F. The minimum temperature also goes down from +66°F to +57°F.
Pack a light jacket as it will be warm in the day and cool in the evenings.
Take a look at how October is compared to other months in Istanbul:
Water temperature in Istanbul in October
Water in Istanbul in October is Fresh. It varies from +60°F to +71°F, with an average of +66°F.This is almost similar to the air temperature, which averages +66°F.
In October, water temperatures are average relative to the rest of the year:
The warmest water temperatures in Istanbul are reached in August, when the average sea temperature rises to +77°F. The coldest water temperatures are in February, with an average of +46°F.
Can you swim in Istanbul in October?
Water temperature (+66°F) in Istanbul in October might be suited for short swims and acclimatized swimmers might find it refreshing.
🦭
Cold
Below +61°F
🏄♂️
Fresh
61°F - 70°F
🏊
Comfortable
70°F - 77°F
👙
Warm
77°F - 82°F
🔥
Very warm
+82°C and up
Think of bringing a full-body or shorty wetsuit (3mm-5mm thickness) to provide insulation and maintain body heat.
Climate in Istanbul in October
Istanbul weather looks like this, on average, in October and the surrounding months.
September
October
November
Avg. temperature
+75°F
+66°F
+59°F
Min. temperature
+54°F
+41°F
+34°F
Max. temperature
+97°F
+88°F
+81°F
Rainfall
31 mm
57 mm
69 mm
Wind
3 m/s
3 m/s
3 m/s
Avg. water temperature
+73°F
+66°F
+58°F
Humidity
67%
73%
75%
Air pressure
1015 HPa
1018 HPa
1018 HPa
Sunny days
17
12
9
Cloudy days
5
8
8
Rainy days
6
10
12
Snowy days
0
0
0
October typically has worse weather conditions compared to September.It’s getting colder in October. From +75°F in the day, the average maximum temperature lowers to +66°F.Prepare for more rain. Average rainfall goes from 31 mm to 57 mm.Humidity rises from 67% to 73%.The average wind speed doesn’t change much during October, staying around 3 m/s.The days becoming less sunny, going from 17 sunny days in September to 12 in October.
Next month (November) brings a further decline in the weather.
Wind speed in Istanbul in October based on historical data.
Last Year
Historical Data
The average wind speed is 4 m/s getting up to 6 m/s which is a medium breeze. You can feel it, especially getting out of the water.
The average wind speed in Istanbul is gradually decreasing during October, going from 5 m/s to 2 m/s over the course of the month.
Rain
Amount of rainfall in mm during October in Istanbul based on historical data.
Last Year
Historical Data
Typically, there is a 13% chance of rain on an average day in October, with total rainfall of approximately 36 mm. The maximum amount of rainfall per day is around 24 mm, which is considered light rain.Istanbul is amazing in October with as little as 4 rainy days on average, so plan adventures in the great outdoors.
Here’s how October is compared with other months in the amount of precipitation, total mm:
Istanbul wettest month is December, where a typical day has a 45% chance of precipitation and 81 mm of rainfall per day. August, on the other hand, is the driest month with a mere 16% chance of precipitation and 14 mm of rainfall per day.
How was the weather last October in Istanbul?
This is the weather in Istanbul in October 2023:
1 October
🌧️
+71°F
2 October
☀️
+71°F
3 October
☀️
+72°F
4 October
☀️
+72°F
5 October
☀️
+73°F
6 October
☀️
+73°F
7 October
☀️
+74°F
8 October
☀️
+74°F
9 October
☁️
+66°F
10 October
☀️
+69°F
11 October
☁️
+66°F
12 October
☀️
+71°F
13 October
☀️
+70°F
14 October
☀️
+71°F
15 October
☀️
+70°F
16 October
🌧️
+65°F
17 October
☁️
+65°F
18 October
🌧️
+61°F
19 October
☀️
+66°F
20 October
☀️
+71°F
21 October
☀️
+75°F
22 October
☀️
+76°F
23 October
☀️
+76°F
24 October
☀️
+71°F
25 October
☀️
+72°F
26 October
☀️
+75°F
27 October
☀️
+75°F
28 October
☀️
+76°F
29 October
☀️
+74°F
30 October
☀️
+72°F
31 October
☀️
+70°F
In October 2023 Istanbul had 25 sunny days, 3 cloudy days, and 3 rainy days. The average maximum temperature was +72°F, with an absolute maximum of +77°F and a minimum of +61°F. The average humidity was 77%, with a maximum of 100% and a minimum of 52%. The average wind speed was 4 m/s, with a maximum of 11 m/s and a minimum of 0 m/s.
Are you planning a trip in October?
Climate Change Over the Years
This is how Istanbul climate has changed over the last 43 years.
The climate in Istanbul in October has not changed that much over the last 43 years.
The average temperature was the lowest in 1997 (+61°F) and the highest in 2019 (+68°F). The driest year was 1984 with only 361 mm of rainfall, and the wettest year was 2010 with 859 mm.
FAQ
Frequently asked questions about the weather in Istanbul in October:
Is October a good time to visit Istanbul?
October is a really good time to go to Istanbul. The weather is nice so plan your packing around outdoor activities and exploring. Check out other good time to visit Istanbul.
Can you sunbathe in Istanbul in October?
October has mild temperatures in Istanbul. Not ideal for sunbathing, but still good for daytime outdoor activities, but plan for cool evenings. Pack a light jacket and shorts!
Can you swim in Istanbul in October?
In general, you can swim in Istanbul in October, if you want to, at an average water temperature of +66°F. But it will feel quite cool, and some precautions are necessary to ensure your comfort and safety.
Is Istanbul rainy in October?
Istanbul is often rainy in October. You may get a bit damp when outside, so pack an umbrella, and maybe even a raincoat.
Is it sunny in Istanbul in October?
The amount of sunny days in Istanbul during October varies; prepare for a mix of clouds and sun.
For this page, we’ve looked at the typical weather in Istanbul, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.
