Cardiff weather in May 2026
Mon
Tue
Wed
Thu
Fri
Sat
Sun
26 April
+12°+6°
27 April
+13°+6°
28 April
+12°+7°
29 April
+14°+7°
30 April
+14°+8°
1 May
+14°+8°
2 May
+13°+7°
3 May
+14°+7°
4 May
+14°+7°
5 May
+15°+8°
6 May
+16°+9°
7 May
+15°+10°
8 May
+14°+9°
9 May
+15°+9°
10 May
+14°+9°
11 May
+14°+8°
12 May
+14°+7°
13 May
+14°+8°
14 May
+15°+8°
15 May
+15°+9°
16 May
+15°+8°
17 May
+15°+9°
18 May
+15°+9°
19 May
+16°+10°
20 May
+17°+10°
21 May
+18°+11°
22 May
+17°+10°
23 May
+17°+10°
24 May
+18°+10°
25 May
+18°+11°
26 May
+17°+11°
27 May
+17°+11°
28 May
+17°+11°
29 May
+17°+12°
30 May
+18°+11°
Forecast in other regions
London
+15°
Birmingham
+12°
Liverpool
+14°
Sheffield
+12°
Glasgow
+14°
Bristol
+13°
Manchester
+13°
Leeds
+12°
Leicester
+12°
Edinburgh
+14°
Cardiff
+12°
Lampeter
+14°
Coventry
+12°
Belfast
+15°
Sunderland
+14°
Nottingham
+11°
Birkenhead
+14°
Reading
+13°
Kingston upon Hull
+11°
Preston
+14°
