14-day forecast — Istanbul
Updated every hour
Sun · Today · 13 Sep
Showers
+24°
+20°
0,6 mm
Mon · Tomorrow · 14 Sep
Showers
+20°
+18°
117,4 mm
Tuesday · 15 Sep
Clear
+24°
+18°
8%
Wednesday · 16 Sep
Clear
+25°
+19°
0,1 mm
Thursday · 17 Sep
Clear
+25°
+19°
4%
Friday · 18 Sep
Clear
+25°
+20°
5%
Saturday · 19 Sep
Clear
+25°
+21°
6%
Sunday · 20 Sep
Clear
+26°
+20°
3%
Monday · 21 Sep
Clear
+25°
+19°
4%
Tuesday · 22 Sep
Clear
+26°
+19°
5%
Wednesday · 23 Sep
Clear
+23°
+20°
8%
Thursday · 24 Sep
Cloudy
+23°
+20°
15%
Friday · 25 Sep
Showers
+24°
+20°
0,8 mm
Saturday · 26 Sep
Clear
+22°
+18°
17%
About Istanbul
À cheval sur deux continents, entre Bosphore et bazars.
CountryTurkey
RegionMarmara
ContinentEurope
Time zoneEurope/Istanbul (+03:00)
Latitude41.0082°
Longitude28.9784°
Air qualityFair (EAQI 22)
Climate in Istanbul in September
Normals 8 years · best time to visit · Open-MeteoBest time to visit 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 |
| Days with precipitation | ▲ 3 d | 8 d | ▼ 7 d |
| Humidity | ▲ 65% | 72% | ▲ 76% |
| Sunshine 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 mean + 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.
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Data source
Global weather models — international forecasts
Météo de Istanbul (Turkey) : conditions actuelles et prévisions à 24 h et 14 jours pour préparer votre voyage. Sur place actuellement, il fait +21°, clear, vent 12 km/h. Sur les 7 prochains jours, les températures varient de 18 à 25 °C avec 5 belles journées et 118 mm de pluie. Heure locale (fuseau Europe/Istanbul). Données Open-Meteo et WeatherAPI.