Mexico’s power grid conforms to US-standards and electricity is 110 Volts. The outlets are for the American type 2 flat male plugs so if you have European appliances be sure to bring the plug adapter. But if you have American appliances take into account that many of the outlets may be 2-prong, so if you have appliances with a 3-prong plug be sure to take an adapter (the orange 3-prong to 2-prong adapter).
The most convenient currency to carry is the Mexican Peso in cash. US Dollars in cash are in northern Mexico also widely accepted in northern Mexico but each business applies their own exchange rate which normally means a slight disadvantage to you.
Changing US to Mexican currency should be done at convenient locations such as a major airport for the entire duration of the trip since money changing en route in Baja California and the Copper Canyon is often quite complicated and not always possible.
We do not encourage the use of travellers’ cheques which are difficult to cash and do not recommend that you carry Euros, British Pounds, Swiss Francs or other currencies which are only recognized in larger cities and virtually unknown in smaller towns.
Both US Dollars and Mexican Pesos should be carried in small denominations. Payment by credit card is generally accepted although not from all card issuing companies. ATMs are widespread and cash can be withdrawn using foreign credit and even some debit cards in combination with your PIN number.
Citizens from all western European countries, Canadians and US citizens do not require a visa to enter Mexico. In Central America and South America citizens from Belize, El Salvador, Costa Rica and Panama as well as from Argentina, Chile, and Venezuela do not require a visa for Mexico either.
Citizens from those countries are required though to carry a passport valid at least for six months and upon entry a tourist card is issued for 30-90 days but the length of stay can later extended up to 180 days. There is a charge of about $ 25.00 USD for the tourist card.