If you planning to travel to San Juan Cathedral, San Juan, 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 9:21 AM. The temperature feels like 76 with a humidity level of 55 so dress accordingly. Cloud coverage is 6 percent with visibility at 14.6 percent. Today’s UV index is 12, don’t forget the sunscreen if you need it! Today’s winds are traveling south-southeast at a speed of 8 MPH. At the end of the day don’t miss the sunset at 11:18 PM.