Average data for 10 years
1 January
Monday
+7°
+4°
2 January
Tuesday
+5°
+4°
3 January
Wednesday
+5°
+4°
4 January
Thursday
+5°
+3°
5 January
Friday
+6°
+4°
6 January
Saturday
+6°
+5°
7 January
Sunday
+6°
+5°
8 January
Monday
+6°
+5°
9 January
Tuesday
+6°
+4°
10 January
Wednesday
+6°
+4°
11 January
Thursday
+6°
+5°
12 January
Friday
+7°
+6°
13 January
Saturday
+5°
+4°
14 January
Sunday
+7°
+3°
15 January
Monday
+7°
+6°
16 January
Tuesday
+6°
+5°
17 January
Wednesday
+7°
+5°
18 January
Thursday
+7°
+5°
19 January
Friday
+5°
+4°
20 January
Saturday
+5°
+4°
21 January
Sunday
+7°
+4°
22 January
Monday
+6°
+5°
23 January
Tuesday
+7°
+4°
24 January
Wednesday
+7°
+4°
25 January
Thursday
+8°
+7°
26 January
Friday
+7°
+6°
27 January
Saturday
+7°
+6°
28 January
Sunday
+6°
+4°
29 January
Monday
+7°
+5°
30 January
Tuesday
+6°
+4°
31 January
Wednesday
+7°
+4°
January in Portlaoise is the windiest and the coldest month of the year. In January, the weather in Portlaoise is typically cold. Average daily high temperature in January is about 6 degrees above zero. On average, Portlaoise has 17 rainy, 9 cloudy, 4 sunny, and 1 partly cloudy day in January. The rains are usually moderate. January as well as February, March, April, and May is considered the most uncomfortable time to visit Portlaoise.