14-day forecast — Istanbul
Updated every hour
Sat · Today
Clear
+25°
+19°
5%
Wind6 m/s NE
Gusts8 m/s
UV index6 – High
Chance of rain5%
Sunrise06:48
Sunset19:07
Sun · Tomorrow
Clear
+25°
+19°
8%
Wind7 m/s NE
Gusts9 m/s
UV index6 – Moderate
Chance of rain8%
Sunrise06:49
Sunset19:05
Monday 21/9
Clear
+26°
+20°
4%
Wind4 m/s E
Gusts7 m/s
UV index6 – Moderate
Chance of rain4%
Sunrise06:50
Sunset19:03
Tuesday 22/9
Cloudy
+22°
+15°
4.0 mm
Wind9 m/s N
Gusts12 m/s
UV index4 – Moderate
Chance of rain70%
Sunrise06:51
Sunset19:01
Wednesday 23/9
Showers
+19°
+15°
6.3 mm
Wind7 m/s NW
Gusts9 m/s
UV index5 – Moderate
Chance of rain66%
Sunrise06:52
Sunset19:00
Thursday 24/9
Clear
+20°
+17°
0.1 mm
Wind5 m/s SW
Gusts10 m/s
UV index6 – High
Chance of rain17%
Sunrise06:53
Sunset18:58
Friday 25/9
Clear
+22°
+18°
1%
Wind5 m/s E
Gusts7 m/s
UV index6 – High
Chance of rain1%
Sunrise06:54
Sunset18:56
Saturday 26/9
Clear
+24°
+17°
6%
Wind5 m/s NE
Gusts7 m/s
UV index6 – High
Chance of rain6%
Sunrise06:55
Sunset18:55
Sunday 27/9
Cloudy
+20°
+17°
17%
Wind8 m/s N
Gusts8 m/s
UV index4 – Moderate
Chance of rain17%
Sunrise06:56
Sunset18:53
Monday 28/9
Clear
+20°
+16°
5%
Wind6 m/s N
Gusts11 m/s
UV index5 – Moderate
Chance of rain5%
Sunrise06:57
Sunset18:51
Tuesday 29/9
Clear
+20°
+16°
0.1 mm
Wind5 m/s NE
Gusts8 m/s
UV index5 – Moderate
Chance of rain17%
Sunrise06:58
Sunset18:50
Wednesday 30/9
Clear
+22°
+16°
2%
Wind2 m/s E
Gusts5 m/s
UV index6 – High
Chance of rain2%
Sunrise06:59
Sunset18:48
Thursday 1/10
Cloudy
+23°
+19°
9%
Wind3 m/s SW
Gusts5 m/s
UV index5 – Moderate
Chance of rain9%
Sunrise07:00
Sunset18:46
Friday 2/10
Partly cloudy
+21°
+16°
22%
Wind10 m/s N
Gusts13 m/s
UV index5 – Moderate
Chance of rain22%
Sunrise07:01
Sunset18:44
About Istanbul
Turkiets metropol på två kontinenter vid Bosporen.
CountryTurkey
RegionIstanbul
ContinentEurope
Time zoneEurope/Istanbul (+03:00)
Latitude41.0082°
Longitude28.9784°
Air qualityFair (EAQI 21)
Climate in Istanbul in May
Normals 8 years · best time to visit · Open-MeteoBest time to visit Istanbul: April–October. With good weather, May is a recommended month to visit.
| April | May | June | |
|---|---|---|---|
| Average temperature | ▲ 12°C | 17°C | ▲ 22°C |
| Highest temperature | ▲ 17°C | 21°C | ▲ 27°C |
| Lowest temperature | ▲ 9°C | 13°C | ▲ 18°C |
| Precipitation | ▲ 60 mm | 62 mm | ▼ 49 mm |
| Days with precipitation | → 9 d | 9 d | ▼ 8 d |
| Humidity | ▼ 72% | 71% | ▼ 61% |
| Sunshine hours per day | ▲ 9,8 h | 11,5 h | ▲ 13,1 h |
| Cloud cover | ▼ 27% | 20% | ▼ 13% |
| UV index (midday) | ▲ 9 | 10 | ▲ 11 |
| Day length | 13:20 | 14:29 | 15:04 |
| Our rating | Good | Good | Perfect |
Temperature day by day in May mean + moving average
Precipitation day by day in May mm
UV index day by day in May 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.