It's National Sangria Day on December 20th.
More on Sangria Day and the other days on the 20th below.
= Total National Day Mentions
We detected 658 references to national Sangria day on 20th the December. There were also a total of 37 other national days mentioned including: Press, Championship, Hard Candy and Snake Day.
The day shown for 'National Sangria Day' is shown as we detected that day mentioned the most out of all the references to national days there were on December the 20th across social media. Our algorithms examine all of the references to National Days across social media and updates whatnationaldayisit.com hourly, with our homepage displaying the current national day. This crowdsourcing of data method to assess the National Day date is used as opposed to being connected with any Government sacntioned lists :D Hurrah for democracy by concensus!