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 7:26 AM. The temperature feels like 54.15 with a humidity level of 90 so dress accordingly. Cloud coverage is 94 percent with visibility at 6.7 percent. Today’s UV index is 1, don’t forget the sunscreen if you need it! Today’s winds are traveling west at a speed of 21 MPH. At the end of the day don’t miss the sunset at 4:22 PM.