14-day forecast — Istanbul
Updated hourly
Fri · Today · 4 Sep
Clear
+27°
+22°
4%
Sat · Tomorrow · 5 Sep
Clear
+29°
+21°
3%
Sunday · 6 Sep
Clear
+30°
+23°
2%
Monday · 7 Sep
Clear
+28°
+22°
3%
Tuesday · 8 Sep
Clear
+25°
+20°
3%
Wednesday · 9 Sep
Clear
+25°
+20°
5%
Thursday · 10 Sep
Clear
+26°
+20°
4%
Friday · 11 Sep
Clear
+29°
+22°
0,7 mm
Saturday · 12 Sep
Showers
+27°
+23°
5,3 mm
Sunday · 13 Sep
Clear
+26°
+23°
1,2 mm
Monday · 14 Sep
Clear
+29°
+22°
3%
Tuesday · 15 Sep
Clear
+25°
+19°
4%
Wednesday · 16 Sep
Cloudy
+24°
+20°
11%
Thursday · 17 Sep
Showers
+22°
+20°
12,0 mm
About Istanbul
Tyrkias metropol på to kontinenter ved Bosporos.
CountryTyrkia
RegionIstanbul
ContinentEuropa
Time zoneEurope/Istanbul (+03:00)
Latitude41.0082°
Longitude28.9784°
LuftkvalitetFair (EAQI 25)
Climate in Istanbul in september
Normals 8 years · best time to travel · Open-MeteoBest time to travel to Istanbul: april–october. With perfect weather, september is a recommended month to visit.
| August | September | October | |
|---|---|---|---|
| Average temperature | ▼ 25°C | 21°C | ▼ 17°C |
| Highest temperature | ▼ 30°C | 26°C | ▼ 21°C |
| Lowest temperature | ▼ 21°C | 18°C | ▼ 14°C |
| Sea temperature | ▼ 25,2°C | 24,2°C | ▼ 19,8°C |
| Precipitation | ▲ 19 mm | 44 mm | ▲ 55 mm |
| Precipitation days | ▲ 3 days | 8 days | ▼ 7 days |
| Humidity | ▲ 65% | 72% | ▲ 76% |
| Sun hours per day | ▼ 12,6 h | 10,9 h | ▼ 8,6 h |
| Cloud cover | ▲ 8% | 13% | ▲ 23% |
| UV index (midday) | ▼ 10 | 7 | ▼ 5 |
| Day length | 13:46 | 12:28 | 11:06 |
| Our rating | Perfect | Perfect | Good |
Temperature day by day in september average + moving average
Precipitation day by day in september mm
UV index day by day in september midday value, clear-sky
Climate normals calculated from Open-Meteo (ERA5 archive 8 years, sea temperature Marine API). UV estimated from solar elevation.
Other destinations in Europa
🌍
🌍
🌍
🌍
🌍
🌍
Gran Canaria
Spania
Tenerife
Spania
Kreta (Heraklion)
Hellas
Torrevieja
Spania
Alicante
Spania
Puerto Rico (Gran Canaria)
Spania
Data source
Global weather models — international forecasts
The weather for Istanbul is based on global weather models (ECMWF, GFS) and national meteorological institutes around the world. Forecasts are updated hourly; measurements every 15 minutes. For destinations with a large time difference from Norway, local time is shown above.