Today, 13 October, Tuesday, in Istanbul (Republic of Türkiye): cloudy, light rain in places, moderately warm. During the day the air will warm up to +19°, at night around +17°. Due to the wind it feels like +16°. Wind up to 23 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 +20° — you can swim. The sun will rise at 07:13 and set at 18:27 — daylight lasts 11 hours.
Hourly weather in Istanbul
38%21
33%22
58%23
75%00
85%01
98%02
85%03
83%04
58%05
63%06
53%07
50%08
50%09
45%10
53%11
75%12
78%13
88%14
85%15
88%16
85%17
88%18
95%19
98%20
💧 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 13.10
🌦️
💧 93%
+17°+19°
Morning
🌦️
+18°
Day
🌦️
+19°
Evening
🌇
+19°
Night
🌙
+17°
Rain showers · precipitation 93% · wind up to 23 km/h. 🙂 Mild, pleasant weather. A light sweater will come in handy in the evening.
▶
Tomorrow 14.10
🌦️
💧 98%
+16°+19°
Morning
🌦️
+17°
Day
🌦️
+19°
Evening
🌇
+17°
Night
🌙
+16°
Rain showers · precipitation 98% · wind up to 44 km/h. 🙂 Mild, pleasant weather. A light sweater will come in handy in the evening.
▶
Thu 15.10
🌧️
💧 93%
+15°+17°
Morning
🌦️
+15°
Day
🌧️
+17°
Evening
🌇
+15°
Night
🌙
+15°
Rain · precipitation 93% · wind up to 35 km/h. 🙂 Mild, pleasant weather. A light sweater will come in handy in the evening.
▶
Fri 16.10
🌦️
💧 35%
+13°+16°
Morning
🌦️
+14°
Day
🌦️
+16°
Evening
🌇
+15°
Night
🌙
+13°
Rain showers · precipitation 35% · wind up to 20 km/h. 🙂 Mild, pleasant weather. A light sweater will come in handy in the evening.
▶
Sat 17.10
🌦️
💧 95%
+11°+14°
Morning
🌦️
+12°
Day
🌦️
+14°
Evening
🌇
+13°
Night
🌙
+11°
Rain showers · precipitation 95% · wind up to 23 km/h. 🧥 Cool. You'll need a warm jacket; it can get chilly in the evening.
▶
Sun 18.10
🌦️
💧 71%
+12°+17°
Morning
🌦️
+14°
Day
🌦️
+17°
Evening
🌇
+16°
Night
🌙
+12°
Light rain · precipitation 71% · wind up to 22 km/h. 🙂 Mild, pleasant weather. A light sweater will come in handy in the evening.
▶
Mon 19.10
⛅
💧 15%
+15°+18°
Morning
⛅
+16°
Day
⛅
+18°
Evening
🌇
+17°
Night
🌙
+15°
Partly cloudy · precipitation 15% · wind up to 15 km/h. 🙂 Mild, pleasant weather. A light sweater will come in handy in the evening.
▶
Tue 20.10
☁️
💧 34%
+14°+19°
Morning
☁️
+16°
Day
☁️
+19°
Evening
🌇
+18°
Night
🌙
+14°
Overcast · precipitation 34% · wind up to 11 km/h. 🙂 Mild, pleasant weather. A light sweater will come in handy in the evening.
▶
Wed 21.10
🌦️
💧 35%
+13°+17°
Morning
🌦️
+14°
Day
🌦️
+17°
Evening
🌇
+16°
Night
🌙
+13°
Drizzle · precipitation 35% · wind up to 14 km/h. 🙂 Mild, pleasant weather. A light sweater will come in handy in the evening.
▶
Thu 22.10
🌦️
💧 25%
+14°+18°
Morning
🌦️
+15°
Day
🌦️
+18°
Evening
🌇
+17°
Night
🌙
+14°
Drizzle · precipitation 25% · wind up to 14 km/h. 🙂 Mild, pleasant weather. A light sweater will come in handy in the evening.
▶
Fri 23.10
🌦️
💧 25%
+13°+17°
Morning
🌦️
+14°
Day
🌦️
+17°
Evening
🌇
+16°
Night
🌙
+13°
Drizzle · precipitation 25% · wind up to 21 km/h. 🙂 Mild, pleasant weather. A light sweater will come in handy in the evening.
▶
Sat 24.10
☁️
💧 31%
+11°+14°
Morning
☁️
+12°
Day
☁️
+14°
Evening
🌇
+13°
Night
🌙
+11°
Overcast · precipitation 31% · wind up to 18 km/h. 🧥 Cool. You'll need a warm jacket; it can get chilly in the evening.
▶
Sun 25.10
🌤️
💧 29%
+10°+14°
Morning
🌤️
+11°
Day
🌤️
+14°
Evening
🌇
+13°
Night
🌙
+10°
Mostly clear · precipitation 29% · wind up to 15 km/h. 🧥 Cool. You'll need a warm jacket; it can get chilly in the evening.
▶
Mon 26.10
☁️
💧 29%
+10°+16°
Morning
☁️
+12°
Day
☁️
+16°
Evening
🌇
+15°
Night
🌙
+10°
Overcast · precipitation 29% · wind up to 11 km/h. 🙂 Mild, pleasant weather. A light sweater will come in handy in the evening.
🗺️ 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 20° · Bad
🏃 Running
0 / 100
comfort for running · Bad
🧴 UV
0%
moderate · low
☂️ Rain
93%
likely · high
✨ Stars
23 / 100
evening visibility · So-so
🧺 Laundry drying
0 / 100
will dry outside · Bad
🚗 Car wash
0 / 100
better to wait · Bad
🌫️ Air quality
37
Good air
European AQI
PM2.5: 11PM10: 12O₃: 46NO₂: 23
The air is clean — you can walk and exercise outside.
🌅 Sun, moon and sea
Sunrise
07:13
Sunset
18:27
Golden hour
17:50
Daylight
11 h (-3 min vs yesterday)
Sea temperature
+20°
🌊 calm, waves 0.3 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
+19°
Normal for October
+19°
Deviation
0° within normal
A year ago on this day
+18°
Record for this date
+26° (2020)
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”.