Current Conditions

Sultanbeyli, Istanbul

78°F26°C

Clear

Wind

NE 22 mph35 km/h

Humidity

75%

Cloud Cover

48%

As of Thursday, August 13, 2026 at 6:46 PM GMT+3

Today's Outlook

Night

Partly cloudy, with a low around 74°F24°C. Windy from the NE at 18 to 21 mph28 to 33 km/h.

7-Day Forecast

Condition	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Wind (mph)
Clear	High 79°F26°C	Low 74°F23°C	Precip 0.01 in0.2 mm9%	Cloud 37%	Wind NE 18 mph28 km/h	Friday: Partly cloudy and warm, with a high of 79°F26°C and morning low of 74°F23°C. Windy from the NE at 17 to 20 mph28 to 32 km/h. Friday Night: Partly cloudy, with a low around 74°F24°C. Windy from the NE at 18 to 21 mph28 to 33 km/h.
Clear	High 78°F26°C	Low 73°F23°C	Precip 0 in0 mm—	Cloud 27%	Wind NE 19 mph30 km/h	Saturday: Mostly clear and warm, with a high of 78°F26°C and morning low of 73°F23°C. Windy from the NE at 20 to 21 mph32 to 34 km/h. Saturday Night: Partly cloudy, with a low around 73°F23°C. Windy from the NE at 18 to 21 mph29 to 34 km/h.
Partly Cloudy	High 79°F26°C	Low 72°F22°C	Precip 0 in0.1 mm2%	Cloud 49%	Wind NE 16 mph25 km/h	Sunday: Mostly cloudy and warm, with a high of 79°F26°C and morning low of 72°F22°C. Windy from the NE at 16 to 17 mph25 to 27 km/h. Sunday Night: Partly cloudy, with a low around 72°F22°C. Windy from the NE at 15 to 17 mph25 to 28 km/h.
Clear	High 80°F27°C	Low 71°F22°C	Precip 0 in0 mm—	Cloud 34%	Wind NE 11 mph17 km/h	Monday: Partly cloudy and warm, with a high of 80°F27°C and morning low of 71°F22°C. Breezy from the NE at 11 to 12 mph17 to 19 km/h. Monday Night: Mostly clear, with a low around 72°F22°C. Breezy from the NE at 11 to 13 mph17 to 21 km/h.
Clear	High 83°F28°C	Low 68°F20°C	Precip 0 in0 mm—	Cloud 2%	Wind NE 5 mph8 km/h	Tuesday: Mostly clear and warm, with a high of 83°F28°C and morning low of 68°F20°C. Light wind from the NE around 4 mph7 km/h. Tuesday Night: Mostly clear, with a low around 69°F21°C. Light wind from the NE around 6 mph9 km/h.
Clear	High 85°F29°C	Low 70°F21°C	Precip 0.01 in0.2 mm5%	Cloud 10%	Wind NE 6 mph9 km/h	Wednesday: Mostly clear and warm, with a high of 85°F29°C and morning low of 70°F21°C. Breezy from the NW at 5 to 7 mph8 to 11 km/h. Humid. Wednesday Night: Mostly clear, with a low around 72°F22°C. Breezy from the ENE at 6 to 9 mph10 to 14 km/h.
Drizzle	High 84°F29°C	Low 72°F22°C	Precip 0.04 in0.9 mm11%	Cloud 18%	Wind NE 8 mph12 km/h	Thursday: Mostly clear and warm, with a high of 84°F29°C and morning low of 72°F22°C. Breezy from the NNE at 8 to 10 mph12 to 16 km/h. Humid. Thursday Night: Mostly clear, with a low around 73°F23°C. Breezy from the NE at 8 to 11 mph12 to 17 km/h. 11% chance of drizzle in the evening.

15-Day Forecast

	Day	High	Low	Precip	Cloud Cover	Condition	Wind
	FridayAug 14	79°F26°C	74°F23°C	0.01 in0.2 mm· 9%	37%	Clear	NE 18 mph28 km/h
DayPartly cloudy and warm, with a high of 79°F26°C and morning low of 74°F23°C. Windy from the NE at 17 to 20 mph28 to 32 km/h. NightPartly cloudy, with a low around 74°F24°C. Windy from the NE at 18 to 21 mph28 to 33 km/h.
	SaturdayAug 15	78°F26°C	73°F23°C	0 in0 mm· —	27%	Clear	NE 19 mph30 km/h
DayMostly clear and warm, with a high of 78°F26°C and morning low of 73°F23°C. Windy from the NE at 20 to 21 mph32 to 34 km/h. NightPartly cloudy, with a low around 73°F23°C. Windy from the NE at 18 to 21 mph29 to 34 km/h.
	SundayAug 16	79°F26°C	72°F22°C	0 in0.1 mm· 2%	49%	Partly Cloudy	NE 16 mph25 km/h
DayMostly cloudy and warm, with a high of 79°F26°C and morning low of 72°F22°C. Windy from the NE at 16 to 17 mph25 to 27 km/h. NightPartly cloudy, with a low around 72°F22°C. Windy from the NE at 15 to 17 mph25 to 28 km/h.
	MondayAug 17	80°F27°C	71°F22°C	0 in0 mm· —	34%	Clear	NE 11 mph17 km/h
DayPartly cloudy and warm, with a high of 80°F27°C and morning low of 71°F22°C. Breezy from the NE at 11 to 12 mph17 to 19 km/h. NightMostly clear, with a low around 72°F22°C. Breezy from the NE at 11 to 13 mph17 to 21 km/h.
	TuesdayAug 18	83°F28°C	68°F20°C	0 in0 mm· —	2%	Clear	NE 5 mph8 km/h
DayMostly clear and warm, with a high of 83°F28°C and morning low of 68°F20°C. Light wind from the NE around 4 mph7 km/h. NightMostly clear, with a low around 69°F21°C. Light wind from the NE around 6 mph9 km/h.
	WednesdayAug 19	85°F29°C	70°F21°C	0.01 in0.2 mm· 5%	10%	Clear	NE 6 mph9 km/h
DayMostly clear and warm, with a high of 85°F29°C and morning low of 70°F21°C. Breezy from the NW at 5 to 7 mph8 to 11 km/h. Humid. NightMostly clear, with a low around 72°F22°C. Breezy from the ENE at 6 to 9 mph10 to 14 km/h.
	ThursdayAug 20	84°F29°C	72°F22°C	0.04 in0.9 mm· 11%	18%	Drizzle	NE 8 mph12 km/h
DayMostly clear and warm, with a high of 84°F29°C and morning low of 72°F22°C. Breezy from the NNE at 8 to 10 mph12 to 16 km/h. Humid. NightMostly clear, with a low around 73°F23°C. Breezy from the NE at 8 to 11 mph12 to 17 km/h. 11% chance of drizzle in the evening.
	FridayAug 21	83°F29°C	72°F22°C	0.02 in0.5 mm· 6%	16%	Clear	NE 9 mph15 km/h
DayMostly clear and warm, with a high of 83°F29°C and morning low of 72°F22°C. Breezy from the NE at 9 to 11 mph15 to 18 km/h. Humid. NightMostly clear, with a low around 73°F23°C. Breezy from the NE at 9 to 12 mph15 to 20 km/h.
	SaturdayAug 22	83°F28°C	72°F22°C	0 in0.1 mm· 3%	15%	Clear	NE 10 mph16 km/h
DayMostly clear and warm, with a high of 83°F28°C and morning low of 72°F22°C. Breezy from the NE at 10 to 12 mph16 to 19 km/h. Humid. NightMostly clear, with a low around 73°F23°C. Breezy from the NE at 10 to 13 mph16 to 21 km/h.
	SundayAug 23	83°F28°C	72°F22°C	0 in0.1 mm· 3%	16%	Clear	NE 11 mph17 km/h
DayMostly clear and warm, with a high of 83°F28°C and morning low of 72°F22°C. Breezy from the NE at 11 to 13 mph17 to 21 km/h. Humid. NightMostly clear, with a low around 73°F23°C. Breezy from the NE at 11 to 14 mph17 to 23 km/h.
	MondayAug 24	83°F28°C	72°F22°C	0 in0.1 mm· 2%	18%	Clear	NE 11 mph17 km/h
DayMostly clear and warm, with a high of 83°F28°C and morning low of 72°F22°C. Breezy from the NE at 11 to 13 mph17 to 21 km/h. Humid. NightMostly clear, with a low around 73°F23°C. Breezy from the NE at 11 to 14 mph17 to 23 km/h.
	TuesdayAug 25	83°F28°C	73°F23°C	0.01 in0.2 mm· 5%	21%	Clear	NE 10 mph17 km/h
DayPartly cloudy and warm, with a high of 83°F28°C and morning low of 73°F23°C. Breezy from the NE at 10 to 13 mph17 to 20 km/h. Humid. NightMostly clear, with a low around 73°F23°C. Breezy from the NE at 10 to 13 mph17 to 22 km/h.
	WednesdayAug 26	83°F28°C	72°F22°C	0.02 in0.5 mm· 6%	22%	Clear	NE 10 mph16 km/h
DayPartly cloudy and warm, with a high of 83°F28°C and morning low of 72°F22°C. Breezy from the NE at 10 to 13 mph16 to 21 km/h. Humid. NightMostly clear, with a low around 73°F23°C. Breezy from the NE at 10 to 14 mph16 to 22 km/h.
	ThursdayAug 27	83°F28°C	72°F22°C	0.01 in0.2 mm· 3%	18%	Clear	NE 10 mph16 km/h
DayMostly clear and warm, with a high of 83°F28°C and morning low of 72°F22°C. Breezy from the NE at 10 to 12 mph16 to 20 km/h. Humid. NightMostly clear, with a low around 73°F23°C. Breezy from the NE at 10 to 13 mph16 to 21 km/h.
	FridayAug 28	82°F28°C	72°F22°C	0.04 in1.1 mm· 11%	27%	Drizzle	NE 9 mph14 km/h
DayPartly cloudy and warm, with a high of 82°F28°C and morning low of 72°F22°C. Breezy from the NE at 9 to 11 mph15 to 18 km/h. 11% chance of drizzle throughout the day. Humid. NightMostly clear, with a low around 73°F23°C. Breezy from the NE at 8 mph13 km/h.

Nearby Cities

Sancaktepe4 mi6 km Maltepe6 mi10 km Ataşehir8 mi13 km Umraniye9 mi14 km Gebze14 mi22 km Çubuklu14 mi22 km

About This Forecast

This forecast is powered by WeatherMesh, the world's most advanced and accurate weather model powered by AI. WeatherMesh is built on proprietary data from WindBorne's Global Sounding Balloon constellation — the world's largest fleet of autonomous, long-duration weather balloons — collecting observations across 100% of Earth, including over oceans and remote regions where no other data exists.

WeatherMesh consistently outperforms legacy models in independent benchmarks. View Benchmarks →

Access WeatherMesh forecasts programmatically via our API. API Documentation →

How to Access Weather Forecasts

Pattern	Example	Description
/weather/{country}/{city}/	/weather/united-states/san-francisco/	City forecast (canonical URL)
/weather/{city}/	/weather/tokyo/	Shorthand — redirects to most populous match
/weather/{country}/{region}/{city}/	/weather/united-states/california/san-francisco/	With region — redirects to canonical
/weather/nearby?lat={lat}&lon={lon}	/weather/nearby?lat=48.1&lon=11.5	Find nearest city by coordinates
/weather/{country}/	/weather/germany/	Country index — all cities by region

Country and city names use lowercase slugs with hyphens (e.g. united-states, san-francisco). Arbitrary city names are supported — if not in our database, we geocode the name and serve the forecast for that location.

For programmatic access, use theWindBorne Forecast APIwhich returns structured JSON for any coordinates worldwide.

Coordinates: 40.9607°N, 29.2707°E·Elevation: 151m·Timezone: Europe/Istanbul·Population: 358,201