Average data for 10 years
1 May
Wednesday
+18°
+13°
2 May
Thursday
+20°
+14°
3 May
Friday
+19°
+14°
4 May
Saturday
+18°
+14°
5 May
Sunday
+18°
+14°
6 May
Monday
+19°
+14°
7 May
Tuesday
+19°
+14°
8 May
Wednesday
+19°
+15°
9 May
Thursday
+17°
+13°
10 May
Friday
+18°
+13°
11 May
Saturday
+20°
+15°
12 May
Sunday
+22°
+16°
13 May
Monday
+22°
+16°
14 May
Tuesday
+22°
+17°
15 May
Wednesday
+23°
+18°
16 May
Thursday
+22°
+18°
17 May
Friday
+20°
+16°
18 May
Saturday
+20°
+16°
19 May
Sunday
+21°
+16°
20 May
Monday
+21°
+17°
21 May
Tuesday
+22°
+17°
22 May
Wednesday
+23°
+18°
23 May
Thursday
+22°
+17°
24 May
Friday
+23°
+18°
25 May
Saturday
+23°
+18°
26 May
Sunday
+21°
+18°
27 May
Monday
+22°
+17°
28 May
Tuesday
+23°
+18°
29 May
Wednesday
+22°
+19°
30 May
Thursday
+23°
+18°
31 May
Friday
+24°
+18°
In May, the weather in Istanbul is typically warm. Average daily high temperature in May is about 21 degrees above zero. On average, Istanbul has 19 sunny, 10 partly cloudy, and 2 rainy days in May. May as well as June, July, and August is considered the most comfortable time to visit Istanbul.