If you planning to travel to Arenal Natura Ecological Park, La Fortuna, 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 11:50 AM. The temperature feels like 73 with a humidity level of 90 so dress accordingly. Cloud coverage is 52 percent with visibility at 1 percent. Today’s UV index is 0, don’t forget the sunscreen if you need it! Today’s winds are traveling southeast at a speed of 5 MPH. At the end of the day don’t miss the sunset at 11:23 PM.