yearly average london
Month Mean Temperature oC Mean Total Rainfall (mm) Mean Number of Rain Days
Daily
Minimum Daily
Maximum
Jan 2.4 7.2 53 14.8
Feb 2.5 7.6 36 10.8
Mar 3.8 10.3 48 13.4
Apr 5.6 13.0 47 12.7
May 8.7 17.0 51 12.5
Jun 11.6 20.3 50 10.5
Jul 13.7 22.3 48 10.1
Aug 13.4 21.9 54 10.9
Sep 11.4 19.1 53 10.5
Oct 8.9 15.2 57 11.6
Nov 5.1 10.4 57 14.0
Dec 3.4 8.2 57 13.2
yearly average Lugano southern switzerland
Month Mean Temperature oC Mean Total Precipitation (mm) Mean Number of Precipitation Days
Daily
Minimum Daily
Maximum
Jan 0.1 6.1 76 6
Feb 1.3 7.8 71 7
Mar 3.9 11.6 106 8
Apr 7.2 15.1 152 10
May 11.0 18.9 194 13
Jun 14.2 22.9 171 11
Jul 16.7 25.8 133 9
Aug 16.0 24.7 166 10
Sep 13.3 21.4 153 8
Oct 9.1 16.5 140 8
Nov 4.4 10.6 120 8
Dec 1.0 7.1 63 6
The difference is that in UK the rainy days are frequent but often the total sum low, in southern switzerland rainy days are much lower than in england but the total amount much more higher thant in England, that's mean heavy rain in very short time here. Weak rain, fog or drizzle is very rare.
