14-day forecast — Istanbul Updated every hour
Sun · Today · 13 Sep
Showers
+24°
+20°
0,6 mm
Mon · Tomorrow · 14 Sep
Showers
+20°
+18°
117,4 mm
Tuesday · 15 Sep
Clear
+24°
+18°
8%
Wednesday · 16 Sep
Clear
+25°
+19°
0,1 mm
Thursday · 17 Sep
Clear
+25°
+19°
4%
Friday · 18 Sep
Clear
+25°
+20°
5%
Saturday · 19 Sep
Clear
+25°
+21°
6%
Sunday · 20 Sep
Clear
+26°
+20°
3%
Monday · 21 Sep
Clear
+25°
+19°
4%
Tuesday · 22 Sep
Clear
+26°
+19°
5%
Wednesday · 23 Sep
Clear
+23°
+20°
8%
Thursday · 24 Sep
Cloudy
+23°
+20°
15%
Friday · 25 Sep
Showers
+24°
+20°
0,8 mm
Saturday · 26 Sep
Clear
+22°
+18°
17%
About Istanbul
À cheval sur deux continents, entre Bosphore et bazars.
Country Turkey
Region Marmara
Continent Europe
Time zone Europe/Istanbul (+03:00)
Latitude 41.0082°
Longitude 28.9784°
Air quality Fair (EAQI 22)
Climate in Istanbul in May
Normals 8 years · best time to visit · Open-Meteo
Best time to visit Istanbul : April–October . With good weather, May is a recommended month to visit.
Photo: Wikimedia
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
Sea temperature
▲ 11,4°C
15,2°C
▲ 21,2°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
13° 15° 17° 19° 21° 1 6 11 16 21 26 31
Precipitation day by day in May mm
0 2.4 4.8 1 6 11 16 21 26 31
UV index day by day in May midday value, clear-sky
0 5.5 11 1 6 11 16 21 26 31
Climate normals calculated from Open-Meteo (ERA5 archive 8 years, sea temperature Marine API). UV estimated from solar elevation.
Other destinations in Europe
Data source
Global weather models — international forecasts
Météo de Istanbul (Turkey) : conditions actuelles et prévisions à 24 h et 14 jours pour préparer votre voyage. Sur place actuellement, il fait +21°, clear, vent 12 km/h. Sur les 7 prochains jours, les températures varient de 18 à 25 °C avec 5 belles journées et 118 mm de pluie. Heure locale (fuseau Europe/Istanbul). Données Open-Meteo et WeatherAPI.