If you planning to travel to Las Baulas National Marine Park, Playa Grande, Costa Rica, 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 11:40 AM. The temperature feels like 79.55 with a humidity level of 91 so dress accordingly. Cloud coverage is 40 percent with visibility at 11.9 percent. Today’s UV index is 0, don’t forget the sunscreen if you need it! Today’s winds are traveling west at a speed of 5 MPH. At the end of the day don’t miss the sunset at 11:18 PM.