Yes, there are several Mexican restaurants in Boston that offer outdoor patios. Here are a few examples:

• Temazcal Tequila Cantina: Located in the Seaport District, Temazcal Tequila Cantina is a popular Mexican restaurant with a spacious outdoor patio. They offer a wide range of Mexican dishes, including tacos, enchiladas, and fajitas. You can find more information on their official website.
• Papagayo: With multiple locations in Boston, Papagayo is known for its vibrant atmosphere and delicious Mexican cuisine. Some of their locations, such as the one in Downtown Crossing, have outdoor seating options. You can visit their website for more details.
• Masa: Situated in the South End neighborhood, Masa is a Mexican restaurant that offers a cozy outdoor patio. They serve a variety of dishes inspired by the flavors of Mexico and the American Southwest. You can check out their official website for menu options and more information.

Please note that availability of outdoor seating may vary depending on weather conditions and restaurant policies. It's always a good idea to call ahead or check the restaurant's website for the most up-to-date information.

I hope this helps you find the perfect Mexican restaurant in Boston with an outdoor patio!