If you planning to travel to Plaza San Martin, Buenos Aires, Argentina, 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 8:35 AM. The temperature feels like 74.19999999999999 with a humidity level of 52 so dress accordingly. Cloud coverage is 9 percent with visibility at 14.9 percent. Today’s UV index is 8, don’t forget the sunscreen if you need it! Today’s winds are traveling north-northeast at a speed of 8 MPH. At the end of the day don’t miss the sunset at 10:34 PM.