The currency in Cancun is the Mexican Peso (MXN), but U.S. dollars are also commonly accepted in tourist areas. Credit and debit cards are widely used, though it's good to carry pesos. Currency exchange services are readily available throughout the city.

When to go

With fall being Cancun's hurricane season, the ideal time to visit Cancun is from December to April, when the weather is warm and dry. This period is also peak tourist season, so expect higher prices and larger crowds. If you prefer fewer crowds and lower rates, consider visiting in the shoulder months of May and November, though be mindful of the possibility of rain.

Food & Water

It is widely known not to drink the tap water in Mexico. When consuming beverages, ensure they are made with bottled or purified water along with checking that bottles you buy are sealed. Additionally, avoid ice in drinks unless you're certain it’s made from purified water along with fresh fruit (which is typically rinsed with tap water.).

Safety

While Cancun is arguably the safest destination in Mexico you should still take safety precautions when visiting.

Stick to well-lit, populated areas and avoid wandering alone at night. Be cautious with your belongings and avoid displaying valuables. It's also wise to use reliable transportation services. Additionally,Never part with your passport or money, not even when a police officer asks. There are many scams used to extort money from travelers.