14-day forecast — Istanbul
Updated hourly
Tue · Today · 4 Aug
Clear
+32°
+23°
3%
Wed · Tomorrow · 5 Aug
Clear
+30°
+24°
4%
Thursday · 6 Aug
Clear
+30°
+23°
5%
Friday · 7 Aug
Clear
+30°
+23°
6%
Saturday · 8 Aug
Clear
+31°
+24°
4%
Sunday · 9 Aug
Clear
+27°
+24°
13%
Monday · 10 Aug
Clear
+28°
+23°
4%
Tuesday · 11 Aug
Clear
+28°
+23°
4%
Wednesday · 12 Aug
Clear
+29°
+22°
4%
Thursday · 13 Aug
Clear
+29°
+23°
5%
Friday · 14 Aug
Clear
+29°
+23°
4%
Saturday · 15 Aug
Clear
+27°
+22°
3%
Sunday · 16 Aug
Clear
+27°
+22°
2%
Monday · 17 Aug
Clear
+28°
+21°
2%
About Istanbul
Tyrkias metropol på to kontinenter ved Bosporos.
CountryTyrkia
RegionIstanbul
ContinentEuropa
Time zoneEurope/Istanbul (+03:00)
Latitude41.0082°
Longitude28.9784°
LuftkvalitetFair (EAQI 32)
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.