Passports and Visas
To enter Mexico, you will need a passport that is valid/unexpired as of your entry. U.S. passport holders do not need a visa to visit for tourist purposes.
Currency and Payments
Mexico's currency is the Mexican peso. U.S. dollars are generally not accepted in San Miguel de Allende. Most establishments (especially those frequented by tourists) accept credit cards. Check with your bank about using your card in Mexico; some banks charge foreign transaction fees. When paying with a card, we choose to pay in pesos rather than in dollars; the exchange rate offered by your bank is generally more favorable than that used by the card processor.
Some places (especially street vendors) only accept cash, and other establishments charge a card fee/offer a cash discount. We do not recommend carrying large amounts of cash around. When we visit San Miguel, we typically withdraw small amounts from ATMs frequently. There are multiple 24/7 ATMs in or near the Jardín Allende, the main plaza, which is only a few minutes' walk from the hotel.
What to Pack
Typical February weather in San Miguel is highs in the mid-70s and lows in the high-40s, with rare precipitation - definitely pack a jacket or warm layer for evenings. Despite the mild temperatures, the UV index can be high, so consider bringing sunscreen, a hat, and sunglasses.
The main tourist area of San Miguel is not very large, but almost all streets are cobblestone and the city is set on a hill, so comfortable shoes are recommended. On our first visit, Audrey bought "emergency Birkenstocks" after a long day of walking.
Mexico uses the same electrical outlet as the U.S., so converters/adapters are not necessary for U.S. devices.
Food and Water Safety
Tap water in Mexico is generally not safe to drink - opt for filtered or bottled water for drinking and brushing your teeth. The hotel will provide plentiful bottled/filtered water in your room. At the hotel and other tourist-focused establishments, ice will also be made with filtered water and is safe. Consider avoiding ice in items purchased from street vendors or more casual establishments.
At restaurants and hotels, all food, including uncooked fruit and vegetables, is fine to eat for most people. If you have a very sensitive stomach or are cautious, consider avoiding raw foods like salads and opting for fruit that you can peel yourself (oranges, bananas). We advise avoiding uncooked street food, but haven't had a problem with cooked food (tacos, etc.).
Following this guidance, we have never had any problems with food and water safety in San Miguel! It is a popular destination for Americans and food establishments are aware of the need for food and water safety.