If you planning to travel to Ko Similan National Park, Thailand, 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 11:21 PM. The temperature feels like 91.85 with a humidity level of 78 so dress accordingly. Cloud coverage is 6 percent with visibility at 14.5 percent. Today’s UV index is 0, don’t forget the sunscreen if you need it! Today’s winds are traveling east at a speed of 6 MPH. At the end of the day don’t miss the sunset at 11:08 AM.