If you planning to travel to Cachoeira do Arua, Santarem, Brazil, 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 9:20 AM. The temperature feels like 87.65 with a humidity level of 69 so dress accordingly. Cloud coverage is 4 percent with visibility at 14.9 percent. Today’s UV index is 2, don’t forget the sunscreen if you need it! Today’s winds are traveling east at a speed of 5 MPH. At the end of the day don’t miss the sunset at 9:36 PM.