14-day forecast — Istanbul
Updated hourly
Sat · Today · 3 Oct
Clear
+20°
+17°
0,3 mm
Sun · Tomorrow · 4 Oct
Clear
+20°
+16°
3%
Monday · 5 Oct
Clear
+21°
+16°
5%
Tuesday · 6 Oct
Clear
+21°
+16°
7%
Wednesday · 7 Oct
Cloudy
+21°
+16°
12%
Thursday · 8 Oct
Cloudy
+20°
+16°
16%
Friday · 9 Oct
Clear
+22°
+18°
4%
Saturday · 10 Oct
Clear
+23°
+18°
6%
Sunday · 11 Oct
Clear
+22°
+17°
11%
Monday · 12 Oct
Cloudy
+22°
+18°
14%
Tuesday · 13 Oct
Cloudy
+18°
+13°
3,6 mm
Wednesday · 14 Oct
Clear
+17°
+13°
1,2 mm
Thursday · 15 Oct
Clear
+18°
+14°
3%
Friday · 16 Oct
Partly cloudy
+18°
+15°
0,1 mm
About Istanbul
Tyrkias metropol på to kontinenter ved Bosporos.
CountryTyrkia
RegionIstanbul
ContinentEuropa
Time zoneEurope/Istanbul (+03:00)
Latitude41.0082°
Longitude28.9784°
LuftkvalitetFair (EAQI 28)
Climate in Istanbul in august
Normals 8 years · best time to travel · Open-MeteoBest time to travel to Istanbul: april–october. With perfect weather, august is a recommended month to visit.
| July | August | September | |
|---|---|---|---|
| Average temperature | → 25°C | 25°C | ▼ 21°C |
| Highest temperature | ▲ 29°C | 30°C | ▼ 26°C |
| Lowest temperature | → 21°C | 21°C | ▼ 18°C |
| Sea temperature | ▼ 25,4°C | 25,2°C | ▼ 24,2°C |
| Precipitation | ▼ 32 mm | 19 mm | ▲ 44 mm |
| Precipitation days | ▼ 5 days | 3 days | ▲ 8 days |
| Humidity | ▲ 64% | 65% | ▲ 72% |
| Sun hours per day | ▼ 13,5 h | 12,6 h | ▼ 10,9 h |
| Cloud cover | ▼ 9% | 8% | ▲ 13% |
| UV index (midday) | ▼ 11 | 10 | ▼ 7 |
| Day length | 14:47 | 13:46 | 12:28 |
| Our rating | Perfect | Perfect | Perfect |
Temperature day by day in august average + moving average
Precipitation day by day in august mm
UV index day by day in august 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
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.