14-day forecast — Istanbul
Updated hourly
Sun · Today · 4 Oct
Clear
+20°
+16°
3%
Mon · Tomorrow · 5 Oct
Clear
+21°
+15°
4%
Tuesday · 6 Oct
Cloudy
+21°
+16°
10%
Wednesday · 7 Oct
Clear
+22°
+16°
6%
Thursday · 8 Oct
Cloudy
+20°
+17°
7%
Friday · 9 Oct
Clear
+22°
+18°
2%
Saturday · 10 Oct
Cloudy
+23°
+19°
12%
Sunday · 11 Oct
Clear
+23°
+19°
0,3 mm
Monday · 12 Oct
Cloudy
+23°
+18°
7%
Tuesday · 13 Oct
Cloudy
+24°
+19°
9%
Wednesday · 14 Oct
Cloudy
+22°
+19°
18,7 mm
Thursday · 15 Oct
Showers
+23°
+17°
37,4 mm
Friday · 16 Oct
Clear
+17°
+15°
16,9 mm
Saturday · 17 Oct
Showers
+16°
+12°
5,5 mm
About Istanbul
Tyrkias metropol på to kontinenter ved Bosporos.
CountryTyrkia
RegionIstanbul
ContinentEuropa
Time zoneEurope/Istanbul (+03:00)
Latitude41.0082°
Longitude28.9784°
LuftkvalitetFair (EAQI 21)
Climate in Istanbul in december
Normals 8 years · best time to travel · Open-MeteoBest time to travel to Istanbul: april–october. With poor weather, december is a possible month to visit.
| November | December | January | |
|---|---|---|---|
| Average temperature | ▼ 13°C | 9°C | ▼ 7°C |
| Highest temperature | ▼ 17°C | 12°C | ▼ 10°C |
| Lowest temperature | ▼ 10°C | 7°C | ▼ 4°C |
| Sea temperature | ▼ 16,2°C | 13,0°C | ▼ 10,2°C |
| Precipitation | ▲ 84 mm | 91 mm | ▲ 97 mm |
| Precipitation days | ▲ 9 days | 13 days | ▼ 12 days |
| Humidity | ▲ 77% | 82% | ▼ 80% |
| Sun hours per day | ▼ 6,9 h | 5,3 h | ▲ 5,5 h |
| Cloud cover | ▲ 30% | 43% | → 43% |
| UV index (midday) | ▼ 3 | 2 | ▲ 3 |
| Day length | 9:54 | 9:17 | 9:37 |
| Our rating | Acceptable | Poor | Poor |
Temperature day by day in december average + moving average
Precipitation day by day in december mm
UV index day by day in december 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.