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