If you planning to travel to Guernsey Harbour, St. Peter Port, Channel Islands, 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 8:04 AM. The temperature feels like 49 with a humidity level of 79 so dress accordingly. Cloud coverage is 70 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 west-northwest at a speed of 15 MPH. At the end of the day don’t miss the sunset at 4:15 PM.