Well, the rest of the UK seems to have taken a lot of rain yesterday (Sun) but we only managed just 1mm. Too often "Wales" is branded as a very wet country when, in fact, it is Capel Curig that gets most of it!

Being so close to Snowdon, Capel Curig is a racing certainty to collect rain from the predominantly wet south-westerly air streams from the Atalantic. The laws of physics dictate that the moist air will become super saturated when it is forced to increase it's height (which lowers the pressure) to get over the mountain. 

Here on the Peninsula, apart from Rhiw, we are a modest 100 metres above sea level so the moist air is much less affected. Rhiw, being just about 320M ASL, does cause local "fogs" sometimes which is quite sppoky to see.