Istanbul climate
Turkey
First-time visitors often notice “tiring weather” before they label it as hot or cold in Istanbul.
In Istanbul, seasonality tends to show up in mornings/evenings and indoor-outdoor gaps more than in a single number.
Climate facts
Mar · Apr · May
Avg low 6–14°C / high 12–23°C · Often 6–10 rain days/month (variable)
Jun · Jul · Aug
Avg low 18–22°C / high 27–31°C · Less frequent, with occasional showers
Sep · Oct · Nov
Avg low 10–18°C / high 16–28°C · Rain increases as the season progresses
Dec · Jan · Feb
Avg low 3–7°C / high 8–12°C · Frequent wet days
How it tends to feel for travel
For travel, what you remember is often variability (rain patterns, humidity, daily swings), not the average.
When it tends to fit
- • Once you see the year-round pattern, it’s easier to judge whether a month fits your style.
- • If you revisit the city, separating “seasonal itineraries” can save a lot of planning time.
When it may not fit
- • If you rely only on averages, you may be surprised by variability (squalls, wind, indoor AC).
- • In monsoon-like periods, the more your itinerary depends on outdoor walking, the higher the risk.
- • If you’re fine with cold but hate damp chill, it can feel colder than you expect.
Outfit notes
This connects climate patterns to packing—without over-interpreting.
- • 🧩 Key idea: Istanbul’s **Bosphorus wind** can change how it feels—windy days can feel much colder than the temperature suggests.
- • 🌧️ Wet streets: late autumn and winter bring more rain, so **waterproof shoes + an umbrella** improve day-to-day comfort.
- • 🧥 Layering: spring and autumn swings are common; layers make day-to-night transitions easy.
It looks simple on paper, but the day-to-day texture can vary.
Explore Istanbul
These pages are connected so you can compare conditions and decide for yourself.