If you planning to travel to Portstewart Strand, Portstewart, Northern Ireland, 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 5:53 AM. The temperature feels like 47.9 with a humidity level of 75 so dress accordingly. Cloud coverage is 31 percent with visibility at 14.8 percent. Today’s UV index is 4, don’t forget the sunscreen if you need it! Today’s winds are traveling northwest at a speed of 11 MPH. At the end of the day don’t miss the sunset at 6:47 PM.