Average data for 10 years
1 September
Sunday
+17°
+15°
2 September
Monday
+18°
+15°
3 September
Tuesday
+18°
+16°
4 September
Wednesday
+18°
+16°
5 September
Thursday
+17°
+15°
6 September
Friday
+18°
+16°
7 September
Saturday
+18°
+16°
8 September
Sunday
+18°
+16°
9 September
Monday
+18°
+16°
10 September
Tuesday
+19°
+16°
11 September
Wednesday
+18°
+16°
12 September
Thursday
+17°
+15°
13 September
Friday
+17°
+15°
14 September
Saturday
+18°
+16°
15 September
Sunday
+17°
+15°
16 September
Monday
+17°
+15°
17 September
Tuesday
+17°
+15°
18 September
Wednesday
+16°
+15°
19 September
Thursday
+16°
+14°
20 September
Friday
+16°
+14°
21 September
Saturday
+17°
+15°
22 September
Sunday
+17°
+14°
23 September
Monday
+15°
+14°
24 September
Tuesday
+16°
+14°
25 September
Wednesday
+15°
+14°
26 September
Thursday
+16°
+14°
27 September
Friday
+16°
+14°
28 September
Saturday
+15°
+14°
29 September
Sunday
+15°
+13°
30 September
Monday
+14°
+13°
In September, the weather in Rosario is typically warm. Average daily high temperature in September is about 17 degrees above zero. On average, Rosario has 14 sunny, 8 rainy, and 8 partly cloudy days in September. The rains are usually heavy.