Average data for 10 years
1 January
Monday
+4°
0°
2 January
Tuesday
+2°
0°
3 January
Wednesday
+2°
0°
4 January
Thursday
+2°
+1°
5 January
Friday
+2°
0°
6 January
Saturday
+3°
+1°
7 January
Sunday
+4°
+1°
8 January
Monday
+4°
+2°
9 January
Tuesday
+4°
+2°
10 January
Wednesday
+4°
+3°
11 January
Thursday
+3°
+2°
12 January
Friday
+3°
+2°
13 January
Saturday
+4°
+2°
14 January
Sunday
+3°
+2°
15 January
Monday
+3°
+1°
16 January
Tuesday
+2°
0°
17 January
Wednesday
+2°
0°
18 January
Thursday
+2°
0°
19 January
Friday
+2°
0°
20 January
Saturday
+1°
+1°
21 January
Sunday
+2°
0°
22 January
Monday
+2°
0°
23 January
Tuesday
+2°
0°
24 January
Wednesday
+1°
0°
25 January
Thursday
+1°
0°
26 January
Friday
+2°
0°
27 January
Saturday
+3°
+1°
28 January
Sunday
+3°
+1°
29 January
Monday
+3°
+1°
30 January
Tuesday
+2°
+1°
31 January
Wednesday
+2°
0°
Cities with similar weather in January
Netherlands
Amsterdam
Belgium
Brussels
Germany
Frankfurt am Main
Germany
Dusseldorf
United Kingdom
Manchester
January in Aarau is the coldest month of the year. In January, the weather in Aarau is typically cold. Average daily high temperature in January is about 3 degrees above zero. On average, Aarau has 16 rainy, 6 sunny, 5 partly cloudy, and 4 cloudy days in January. The rains are usually moderate. January as well as February, March, November, and December is considered the most uncomfortable time to visit Aarau.