14-day forecast — Istanbul
Updated every hour
Sat · Today · 1 Aug
Clear
+27°
+22°
4%
Sun · Tomorrow · 2 Aug
Clear
+28°
+23°
6%
Monday · 3 Aug
Clear
+31°
+23°
5%
Tuesday · 4 Aug
Clear
+31°
+23°
3%
Wednesday · 5 Aug
Clear
+33°
+24°
2%
Thursday · 6 Aug
Clear
+30°
+23°
4%
Friday · 7 Aug
Clear
+32°
+24°
5%
Saturday · 8 Aug
Clear
+31°
+24°
4%
Sunday · 9 Aug
Clear
+33°
+24°
3%
Monday · 10 Aug
Clear
+31°
+24°
4%
Tuesday · 11 Aug
Clear
+29°
+25°
6%
Wednesday · 12 Aug
Clear
+28°
+23°
7%
Thursday · 13 Aug
Clear
+27°
+22°
3%
Friday · 14 Aug
Clear
+27°
+22°
3%
About Istanbul
Turkiets metropol på två kontinenter vid Bosporen.
CountryTurkey
RegionIstanbul
ContinentEurope
Time zoneEurope/Istanbul (+03:00)
Latitude41.0082°
Longitude28.9784°
Air qualityFair (EAQI 32)
Climate in Istanbul in August
Normals 8 years · best time to visit · Open-MeteoBest time to visit 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 |
| Precipitation | ▼ 32 mm | 19 mm | ▲ 44 mm |
| Days with precipitation | ▼ 5 d | 3 d | ▲ 8 d |
| Humidity | ▲ 64% | 65% | ▲ 72% |
| Sunshine 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 mean + 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 update every hour; current measurements every 15 minutes. For destinations with a larger time difference from Sweden, local time is shown above.