Celebrate National Guacamole Day September 16. It’s the holiday you've all been waiting for! September 16 is National Guacamole Day and November 14 is National Spicy Guacamole Day. Show your true green colors and impeccable good taste with Hass Avocados, the choice of professional chefs and guacamole connoisseurs. Serve them proudly throughout the day and for the remaining 363 days for breakfast, lunch, dinner and more. The possibilities are endless with always in season Hass Avocados. Try our tips and recipes for a perfect guacamole celebration.