Weather in Istanbul — today
Now in Istanbul
☁️
+14°
Overcast
Feels like +11° · humidity 81%
Today 27.10: +17° / +12°
🕐 12:25
Wind
25 km/h
UV index
1
Air (AQI)
23 · Good
Precipitation
100%
Humidity
81%
Pressure
1013 hPa
Sunrise / sunset
07:29 / 18:06
Sea temperature
🌊 +18°
👕 What to wear today
Comfortable — a T-shirt, a light sweater for the evening.
☂️ Take an umbrella💨 WindyFeels colder by 3°
Weather for an activity:
Detailed weather information for Istanbul
Today, 27 October, Tuesday, in Istanbul (Republic of Türkiye): cloudy, light rain in places, moderately warm. During the day the air will warm up to +17°, at night around +12°. Due to the wind it feels like +11°. Wind up to 27 km/h. High chance of rain — be sure to take an umbrella or a raincoat. A T-shirt is comfortable during the day, but take a light sweater or windbreaker for the evening. Water temperature is +18° — you can swim. The sun will rise at 07:29 and set at 18:06 — daylight lasts 11 hours.Hourly weather in Istanbul
💧 The bars at the bottom show the hourly precipitation probability. Shaded areas of the chart are the dark hours (before sunrise 🌅 and after sunset 🌇).
Weather in Istanbul for 14 days
Tap a day to expand it by time of day and open the full forecast. The bar shows the range from the night low (left) to the day high (right).
▶
Today 27.10
🌦️
💧 100%
+12° +17°
Morning
🌦️
+14°
Day
🌦️
+17°
Evening
🌇
+16°
Night
🌙
+12°
▶
Tomorrow 28.10
🌦️
💧 38%
+11° +17°
Morning
🌦️
+13°
Day
🌦️
+17°
Evening
🌇
+16°
Night
🌙
+11°
▶
Thu 29.10
⛈️
💧 96%
+15° +17°
Morning
⛈️
+16°
Day
⛈️
+17°
Evening
🌇
+17°
Night
🌙
+15°
▶
Fri 30.10
🌦️
💧 85%
+13° +15°
Morning
🌦️
+14°
Day
🌦️
+15°
Evening
🌇
+15°
Night
🌙
+13°
▶
Sat 31.10
☁️
💧 18%
+12° +16°
Morning
☁️
+13°
Day
☁️
+16°
Evening
🌇
+15°
Night
🌙
+12°
▶
Sun 1.11
🌦️
💧 24%
+12° +18°
Morning
🌦️
+14°
Day
🌦️
+18°
Evening
🌇
+17°
Night
🌙
+12°
▶
Mon 2.11
🌦️
💧 43%
+14° +21°
Morning
🌦️
+17°
Day
🌦️
+21°
Evening
🌇
+19°
Night
🌙
+14°
▶
Tue 3.11
🌦️
💧 44%
+6° +19°
Morning
🌦️
+11°
Day
🌦️
+19°
Evening
🌇
+16°
Night
🌙
+6°
▶
Wed 4.11
🌦️
💧 45%
+5° +12°
Morning
🌦️
+8°
Day
🌦️
+12°
Evening
🌇
+10°
Night
🌙
+5°
▶
Thu 5.11
🌦️
💧 47%
+6° +10°
Morning
🌦️
+7°
Day
🌦️
+10°
Evening
🌇
+9°
Night
🌙
+6°
▶
Fri 6.11
⛅
💧 36%
+5° +10°
Morning
⛅
+7°
Day
⛅
+10°
Evening
🌇
+9°
Night
🌙
+5°
▶
Sat 7.11
🌤️
💧 36%
+5° +11°
Morning
🌤️
+7°
Day
🌤️
+11°
Evening
🌇
+10°
Night
🌙
+5°
▶
Sun 8.11
☁️
💧 29%
+6° +13°
Morning
☁️
+9°
Day
☁️
+13°
Evening
🌇
+11°
Night
🌙
+6°
▶
Mon 9.11
🌦️
💧 24%
+9° +14°
Morning
🌦️
+11°
Day
🌦️
+14°
Evening
🌇
+13°
Night
🌙
+9°
🗺️ Precipitation radar
Precipitation radar (RainViewer) over a clean base map — updates every 5–10 minutes. Colours show nearby precipitation; if there is none, the map is simply clear — that is normal. Zoom with + / −.
Rain intensity:lightmoderateheavy
🎯 What to do in this weather — indices of the day
Comfort score from 0 (bad) to 100 (excellent), calculated from the day's weather. For “rain” and “UV” a percentage/risk level is shown.
🏖️ Beach
0 / 100
for sea and sun · Bad
🏊 Swimming
0 / 100
water 18° · Bad
🏃 Running
0 / 100
comfort for running · Bad
🧴 UV
9%
moderate · low
☂️ Rain
100%
likely · high
✨ Stars
18 / 100
evening visibility · Bad
🧺 Laundry drying
0 / 100
will dry outside · Bad
🚗 Car wash
0 / 100
better to wait · Bad
🌫️ Air quality
23
Good air
European AQI
PM2.5: 6PM10: 8O₃: 56NO₂: 9
The air is clean — you can walk and exercise outside.
🌅 Sun, moon and sea
Sunrise
07:29
Sunset
18:06
Golden hour
17:27
Daylight
11 h (-2 min vs yesterday)
Sea temperature
+18°
🌊 slight, waves 0.8 m.
Istanbul climate by month
Long-term averages. Hover over a bar for details. The forecast for a specific month is a combination of the climate normal and the model forecast for the coming weeks.
+8°
+4°
Jan
+9°
+4°
Feb
+11°
+6°
Mar
+15°
+9°
Apr
+20°
+14°
May
+25°
+18°
Jun
+28°
+21°
Jul
+28°
+22°
Aug
+24°
+18°
Sep
+19°
+14°
Oct
+14°
+10°
Nov
+10°
+6°
Dec
swipe sideways →
Bar color shows temperature:frostcoolcomfortablewarmhot— best months to visit
| Month | Day | Night | Sea | Precipitation | What to pack and what makes the month notable (events, nuances) |
|---|---|---|---|---|---|
| January | +8° | +4° | +11° | 85 mm | Winter weather: about +8° daytime, you need a warm coat and hat. Frequent rain (85 mm over the month) — keep indoor backup plans. 🧥 a warm jacket. The water is cold (+11°) — swimming is for the brave. This is the coldest month of the year. Low season: no museum queues, occasional snow over the Bosphorus. |
| February | +9° | +4° | +9° | 71 mm | A cold month: +9° by day, long walks get uncomfortable. One of the wettest months (71 mm): downpours can derail plans. 🧥 a warm jacket. The water is cold (+9°) — swimming is for the brave. The quietest month with the lowest hotel prices. |
| March | +11° | +6° | +9° | 72 mm | Cool: around +11° by day, you'll need a warm layer. It's a rainy month (72 mm) — an umbrella is a must. 🧥 a warm jacket. The water is cold (+9°) — swimming is for the brave. The city wakes up; first warm strolling days. |
| April | +15° | +9° | +11° | 47 mm | A fresh month — +15° daytime, take a jacket for walks. 🧥 a warm jacket. The water is cold (+11°) — swimming is for the brave. Tulip Festival — millions of blooms in Emirgan Park. |
| May | +20° | +14° | +15° | 36 mm | The most pleasant season: +20° by day, comfortable all day long. 🙂 a sweater for the evening. The water is cold (+15°) — swimming is for the brave. Best month: warm, green, Bosphorus ferries. |
| June | +25° | +18° | +21° | 35 mm | One of the best times to visit: +25° by day, fresh nights. 😊 light summer clothing. Sea at +21° — swimmable, refreshing. The longest daylight hours of the year — more time for everything. Summer music festivals and open-air venues begin. |
| July | +28° | +21° | +25° | 19 mm | Gentle warmth — about +28° daytime, great walking weather. 😊 light summer clothing. Water at +25° — great for swimming. One of the driest months — rain is very unlikely. Istanbul Jazz Festival; ferries beat the heat. |
| August | +28° | +22° | +25° | 20 mm | A comfortable month: +28° by day without exhausting heat. 😊 light summer clothing. Water at +25° — great for swimming. This is the hottest month of the year in Istanbul. Hot, busy peak; rooftop dinners. |
| September | +24° | +18° | +24° | 45 mm | One of the best times to visit: +24° by day, fresh nights. 😊 light summer clothing. Water at +24° — great for swimming. Velvet season — warmth without crowds. |
| October | +19° | +14° | +20° | 78 mm | Ideal weather: +19° daytime — neither hot nor cold. Frequent rain (78 mm over the month) — keep indoor backup plans. 🙂 a sweater for the evening. Sea at +20° — swimmable, refreshing. Republic Day on 29 October: parades and fireworks. |
| November | +14° | +10° | +17° | 72 mm | Cool weather: +14° by day, noticeably colder in the evening. One of the wettest months (72 mm): downpours can derail plans. 🧥 a warm jacket. The water is cold (+17°) — swimming is for the brave. Rains return; fish restaurant season. |
| December | +10° | +6° | +13° | 97 mm | Cool: around +10° by day, you'll need a warm layer. It's a rainy month (97 mm) — an umbrella is a must. 🧥 a warm jacket. The water is cold (+13°) — swimming is for the brave. Statistically the wettest month of the year. Festive lights along Istiklal Avenue. |
When to visit Istanbul
✅ Recommended time to visit
🌟 Best time: June, July, August
Daytime air+25…+28°
Sea temperature+21…+25°
Precipitationrare
Why: comfortable +25…+28° by day, little rain.
⚠️ Doable, with caveats
🌤️ Shoulder season: March, April, May, September, October, November
Daytime air+11…+24°
Sea temperature+9…+24°
Precipitationoften
Why: cool (+11…+24°) — not beach season, but great for city sights and museums.
🔴 Not the best time
❄️ Cold season: January, February, December
Daytime air+8…+10°
Sea temperature+9…+13°
Precipitationoften
Why: cold and dark (+8…+10° by day, 9 h of daylight) — only if frost and short days don’t put you off.
Bottom line: the best time to visit Istanbul is June – August, and the most comfortable months are June, July, August. The toughest months to visit are January, February, December: frequent rain.
🌡️ Today vs the climate normal
Today's high
+17°
Normal for October
+19°
Deviation
2° colder than normal
A year ago on this day
+24°
Record for this date
+25° (2023)
The normal, “a year ago” and the record come from the weather archive since 1940 (Open-Meteo / ERA5).
Weather archive for Istanbul
📅 See what the weather was like on any day since 1940. For example: “what was the weather on March 2, 2021”.
Show the archive for the selected day →
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Weather in cities near Istanbul
Frequently asked questions about the weather in Istanbul
What is the weather in Istanbul right now?＋
Overcast, +14°, feels like +11°.
Will it rain in Istanbul today?＋
Yes: 100% chance, 15 mm.
When is the best time to visit Istanbul?＋
Best time to visit — June – August.
Can you swim in Istanbul in summer?＋
In winter the water is around +11° — swimming is for the brave. In summer the sea warms up to +24°.
What time are sunrise and sunset in Istanbul?＋
Sunrise 07:29, sunset 18:06.
Does it snow in Istanbul in winter?＋
No, it practically never snows.
What is the climate in Istanbul by month?＋
Summers up to +28° in August, winters around +4° in January; the wettest month is December.
Is it cold in Istanbul in winter?＋
🧥 Cool. You'll need a warm jacket; it can get chilly in the evening.