If you planning to travel to National Slate Museum, Caernarfon, Wales, United Kingdom, here is your 6-day travel weather forecast to make sure you have all the essentials needed during your stay. Start your day when the sunrises at 7:15 AM. The temperature feels like 50.599999999999994 with a humidity level of 87 so dress accordingly. Cloud coverage is 85 percent with visibility at 14.9 percent. Today’s UV index is 0, don’t forget the sunscreen if you need it! Today’s winds are traveling south-southeast at a speed of 3 MPH. At the end of the day don’t miss the sunset at 4:40 PM.