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Weather in Istanbul - 14-day forecast

Detailed weather forecast for Istanbul, Turkey: daytime and night temperature, rain, sunrise and sunset - today and for the next two weeks.
Forecast for the next days in Istanbul
today☀️ 26°💧 0.6 mm
Thu☁️ 24°💧 1.2 mm
Fri☀️ 27°💧 1.2 mm
Sat☀️ 29°💧 1.5 mm
Sun☀️ 31°night 29°
Mon☀️ 29°💧 0.3 mm
Tue☀️ 29°💧 0.6 mm
Wed🌤️ 29°💧 0.2 mm

14-day forecast - Istanbul

WEATHER FORECAST · 15 DAYSIstanbulTurkey · 16-day forecast26°☀️Todaynight 30° · wind 4 m/s · humidity 37%🌅 05:39 🌇 20:39 · daylight 14 h 59 min26°30°24°27°24°29°31°29°29°25°29°25°29°25°28°25°29°26°29°30°26°30°26°30°27°31°27°RAIN (MM)0.61.21.21.50.30.60.21.42.90.34.5Wed8.07Thu9.07Fri10.07Sat11.07Sun12.07Mon13.07Tue14.07Wed15.07Thu16.07Fri17.07Sat18.07Sun19.07Mon20.07Tue21.07Wed22.07AVERAGE29°MAX.31° (12.07)MIN.24° (9.07)TOTAL RAIN14.6 mmSUNNY DAYS10world-prices.com · updated 2026-07-08

📅 Istanbul 30 & 45-day weather - long-range outlook

Next 16 days · forecast
29°
around 27° at night · days with rain: 6
Weeks 3-4 · avg for July
29°
around 20° at night · rain chance 12%
Weeks 5-7 · avg for August
29°
around 22° at night · rain chance 14%
The 30 & 45-day outlook for Istanbul: the next 16 days are a numerical forecast updated daily - on average 29° by day and 27° at night. Further out we rely on multi-year climate averages: around 29° in July, and about 29° in August. Forecasts beyond two weeks are indicative only.

Day-by-day forecast for Istanbul

Wednesday8 July 2026
☀️26°clear sky
sunrise 05:39 · sunset 20:39 · night 30° · evening 29° · rain 0.63 mm · humidity 37% · wind 4 m/s · clouds 8%
Thursday9 July 2026
☁️24°overcast clouds
sunrise 05:40 · sunset 20:38 · night 22° · evening 22° · rain 1.2 mm · humidity 54% · wind 7 m/s · clouds 100%
Friday10 July 2026
☀️27°clear sky
sunrise 05:41 · sunset 20:38 · night 24° · evening 27° · rain 1.17 mm · humidity 43% · wind 5 m/s · clouds 2%
Saturday11 July 2026
☀️29°clear sky
sunrise 05:41 · sunset 20:37 · night 27° · evening 31° · rain 1.47 mm · humidity 30% · wind 5 m/s · clouds 2%
Sunday12 July 2026
☀️31°clear sky
sunrise 05:42 · sunset 20:37 · night 29° · evening 33° · humidity 27% · wind 4 m/s · clouds 57%
Monday13 July 2026
☀️29°clear sky
sunrise 05:43 · sunset 20:36 · night 25° · evening 28° · rain 0.3 mm · humidity 39% · wind 7 m/s · clouds 4%
Tuesday14 July 2026
☀️29°clear sky
sunrise 05:44 · sunset 20:36 · night 25° · evening 28° · rain 0.57 mm · humidity 38% · wind 8 m/s · clouds 1%
Wednesday15 July 2026
🌤️29°scattered clouds
sunrise 05:44 · sunset 20:35 · night 25° · evening 27° · rain 0.18 mm · humidity 43% · wind 9 m/s · clouds 25%
Thursday16 July 2026
🌧️28°light rain
sunrise 05:45 · sunset 20:35 · night 25° · evening 27° · rain 1.38 mm · humidity 53% · wind 7 m/s · clouds 100%
Friday17 July 2026
🌧️29°light rain
sunrise 05:46 · sunset 20:34 · night 26° · evening 29° · rain 2.94 mm · humidity 56% · wind 5 m/s · clouds 43%
Saturday18 July 2026
☀️29°clear sky
sunrise 05:47 · sunset 20:33 · night 29° · evening 33° · humidity 45% · wind 5 m/s · clouds 33%
Sunday19 July 2026
☀️30°clear sky
sunrise 05:48 · sunset 20:33 · night 26° · evening 29° · humidity 49% · wind 9 m/s · clouds 1%
Monday20 July 2026
🌤️30°scattered clouds
sunrise 05:48 · sunset 20:32 · night 26° · evening 29° · rain 0.3 mm · humidity 51% · wind 9 m/s · clouds 29%
Tuesday21 July 2026
☀️30°clear sky
sunrise 05:49 · sunset 20:31 · night 27° · evening 29° · rain 4.5 mm · humidity 45% · wind 8 m/s · clouds 3%
Wednesday22 July 2026
☀️31°clear sky
sunrise 05:50 · sunset 20:30 · night 27° · evening 30° · humidity 43% · wind 7 m/s
Thursday23 July 2026
☀️31°clear sky
sunrise 05:51 · sunset 20:30 · night 31° · evening 31° · humidity 43% · wind 7 m/s

☀️ UV index in Istanbul - is it safe to sunbathe?

☀️ UV INDEX · 16-DAY FORECASTIstanbul03681111+7.6UV HIGHtoday, daily maxSPF 30-50, a hat and sunglasses are a must. Betterstay in shade between 11:00 and 15:00.⏱ Unprotected fair skin may burn in about 25 min8Wed8.077Thu9.078Fri10.078Sat11.078Sun12.078Mon13.078Tue14.078Wed15.078Thu16.077Fri17.077Sat18.077Sun19.078Mon20.078Tue21.078Wed22.078Thu23.070-2 low3-5 moderate6-7 high8-10 very high11+ extremeworld-prices.com · 2026-07-08
Today the UV index in Istanbul is 8 (high) - unprotected fair skin can burn in about 25 minutes. SPF 30-50, a hat and sunglasses are a must. Better stay in shade between 11:00 and 15:00.

🌿 Pollen in Istanbul - info for allergy sufferers

🌿 PLANT POLLEN · 4-DAY FORECASTIstanbulHighest pollen today: 🌾 Grasses8 grains/m³ · low leveltoday8.07tomorrow9.07Fri10.07Sat11.07🌾Grasses8742nonelowmoderatehighvery highoff season: alder, birch, mugwort, olive, ragweed · values in grains/m³ (daily peak)pogodapodroze.pl · 2026-07-08
Today grasses pollen is highest in Istanbul - about 8 grains/m³, low level. Most allergy sufferers should not feel strong symptoms. Pollen levels are a CAMS model forecast and are indicative.

🌊 Sea temperature - Istanbul

Water today
26°C
Week avg
26°C
Waves today
0 m
How's the water?
warm
16-day sea temperature forecast:
8.07 26°C9.07 26°C10.07 26°C11.07 26°C12.07 27°C13.07 26°C14.07 26°C15.07 26°C16.07 26°C
Average sea temperature through the year:
Jan 11°CFeb 9°CMar 10°CApr 12°CMay 15°CJun 21°CJul 25°CAug 25°CSep 24°COct 20°CNov 17°CDec 13°C
Sea-surface temperature from marine models, updated daily. See also: where the sea is warmest right now.

Air quality and smog in Istanbul

CityPM2.5 (µg/m³)PM10 (µg/m³)Air quality
Adana12.920.7very good
Van10.113.8very good
Bursa9.913very good
Kahramanmaraş8.811.1very good
Gaziantep7.812.1very good
Stambul7.613.6very good
Izmir7.413.8very good
Sultangazi710.7very good
Samsun6.810.1very good
Antalya5.37very good
Erzurum5.26.1very good
Ankara4.97.2very good
Konya4.66.8very good
Kayseri4.16.4very good
Edessa3.64.4very good
Based on PM2.5 thresholds. Station readings, updated daily (last reading: 2026-07-08, 04:00).

Istanbul weather through the year

WEATHER THROUGH THE YEARIstanbul9°3°11°13°18°8°22°13°26°17°29°20°29°22°26°20°13°16°9°11°5°CHANCE OF RAIN (%)33050252221121433323137JanFebMarAprMayJunJulAugSepOctNovDecWARMESTJul (29°)COLDESTJan (9°)DRIESTFeb (0%)WETTESTMar (50%)world-prices.com · 2026-07-08 · ★ best months

Warmest, driest months on average: February, March, April, May.

🎉 Public holidays in Istanbul - when are the long weekends?

Next long weekend in Istanbul: Republic Day (29 October, Thursday) - Thursday–Sunday if you take Friday off (4 days).
15 JulyWednesday
Democracy and National Unity Day
30 AugustSunday
Victory Day
falls on a weekend
29 OctoberThursday
Republic Day
🎈 long weekend + bridge day
1 JanuaryFriday 2027
New Year's Day
🎈 long weekend
23 AprilFriday 2027
National Independence & Children's Day
🎈 long weekend
1 MaySaturday 2027
Labour Day
falls on a weekend
19 MayWednesday 2027
Atatürk Commemoration & Youth Day
15 JulyThursday 2027
Democracy and National Unity Day
🎈 long weekend + bridge day
30 AugustMonday 2027
Victory Day
🎈 long weekend
29 OctoberFriday 2027
Republic Day
🎈 long weekend
Public holidays (statutory days off) - shops, offices and some attractions may be closed. A "bridge day" is a workday between a holiday and the weekend worth taking as leave.

Nearby places

BursaEskişehir

FAQ - Istanbul weather

What is the weather like in Istanbul today?
Today it is about 26° during the day and 30° at night, clear sky.
How far ahead can I check the forecast for Istanbul?
This page shows a detailed 14-day forecast plus the long-term monthly climate, so you can plan both a short trip and a holiday months ahead.