Thousands of U.S. citizens are getting ready to head south for the winter, from RV caravans to retirees flying in for long beach stays. A new message from the U.S. State Department on seasonal travel to Mexico urges those “snowbirds” to plan more carefully, pay attention to paperwork, and think about safety long before they reach the border.
The guidance stresses that crime, including violent crime, can happen anywhere in Mexico, even in places that feel familiar and touristy. Popular coastal spots such as San Carlos, Puerto Peñasco, Los Cabos, and Mazatlán are singled out as areas where visitors should be especially cautious after dark. Officials again point travelers to the detailed state-by-state Mexico Travel Advisory, which outlines higher-risk areas and restrictions for U.S. government employees.
Why the State Department is focusing on snowbird travel
The winter crowd looks different from spring break. Many visitors stay for months, drive their own vehicles deep into the country, and haul trailers full of belongings. The State Department says that a mix of long stays, highway travel, and relaxed vacation routines can cause real trouble when people overlook Mexico’s rules on weapons, immigration, and customs. The new guidance focuses squarely on snowbird travel to Mexico and the extra risks that come with spending the whole season abroad.
On firearms, the warning is blunt. Bringing guns or ammunition into Mexico without the right permits is a serious crime that can lead to a long prison sentence. Even a few forgotten rounds, used shells, empty magazines, hunting knives, fireworks, or brass knuckles can be treated as illegal weapons. Snowbirds who keep gear in their trucks or RVs are urged to empty every compartment before crossing the border and to remember that Mexican law on weapons is much stricter than in many U.S. states.
Paperwork is another focus. Every visitor must hold a Forma Migratoria Múltiple (FMM), even if they plan to stay inside the traditional border zone. The permit can be requested online or at an office of Mexico’s National Migration Institute, and travelers are told to guard it as carefully as their passport. The bulletin notes that the current fee is 861 pesos, roughly 47 dollars, and that it will rise to 983 pesos, about 54 dollars, in January 2026. Losing the form or overstaying the permitted period can mean fines and delays when trying to leave.
U.S. citizens entering Mexico must carry either a passport book or a passport card at the border. Children who fly within Mexico need a U.S. passport book for domestic flights. When travelers arrive, Mexican immigration officers decide how long they may stay and record that limit on the entry stamp. Overstaying or working without permission can lead to fines, detention, and missed flights. Travelers are urged to check the date on their entry stamp and make sure their passport will stay valid for the entire visit.
The message also reminds visitors to respect Mexico’s customs rules. People who cross with more than 10,000 dollars in cash must declare it. Goods worth more than 300 dollars when entering by land, or 500 dollars by air, are also meant to be declared on arrival. While enforcement can vary, Mexican regulations only allow one portable computer, such as a laptop or tablet, per person tax-free. Extra devices may be taxed at up to 19 percent of their value, or face charges that can run into several thousand dollars. Drivers taking U.S.-plated vehicles farther into the country are also expected to comply with Mexico’s temporary vehicle import rules, which can include deposits and strict return conditions.
The State Department cautions winter drivers about checkpoints on Mexican roads. Some are official, run by the National Guard, the military, or local police. Others may be illegal roadblocks set up by criminal groups to threaten rivals or extort money. The bulletin tells drivers to slow down, cooperate, and avoid any gestures that might look aggressive. Trying to flee a checkpoint, even a legal one, can raise suspicion and increase the risk of violence.
Medical and roadside risks also feature heavily in the guidance. Emergency services can be scarce in remote areas, so travelers are urged to plan routes carefully and make sure their vehicles are in good condition before long trips. Illness or crashes may require treatment in private hospitals, which often expect payment up front and can be very expensive. The State Department says visitors should confirm that their health insurance covers care in Mexico or buy separate travel insurance that includes medical evacuation, which can cost tens of thousands of dollars without coverage.
On drugs, the message underlines a distinction that still surprises many visitors. Possessing or using illegal drugs, including medical marijuana that may be legal at home, is against the law in Mexico and can result in long jail terms. The guidance notes that Mexican criminal groups are locked in a violent fight over trafficking routes and warns U.S. citizens not to carry packages across the border for anyone, even as a favor.
Practical steps before you head south
Along with the warnings, the State Department encourages snowbirds to prepare in a few concrete ways. Travelers are asked to read both the general travel information for Mexico and the latest Mexico Travel Advisory on the State Department’s website before choosing routes and destinations. They are also encouraged to enroll in the free Smart Traveler Enrollment Program, which sends safety updates by email and makes it easier for U.S. embassies and consulates to reach them in an emergency.
Once in Mexico, visitors should keep their passports and entry permits in a safe place and check the date by which they must leave. Friends and family back home should know basic details of the trip, especially when someone is traveling alone. Keeping copies of passports and vehicle papers with a trusted contact can save time if documents are lost or stolen.
In any emergency, travelers in Mexico can dial 911 for police, fire, or ambulance. Operators in some areas can help in English, but the State Department recommends asking a Spanish speaker to place the call when possible. For breakdowns on federal toll roads, Mexico’s Ángeles Verdes highway patrol and tourist assistance service can be reached through the national 078 line, which connects callers to roadside help and tourist information.
The bulletin also points seasonal visitors to local tourist protection offices in some destinations, including Centers for the Care and Protection of Tourists and Tourist Assistance Centers. These offices can sometimes help with disputes with businesses and local authorities or guide visitors through filing police reports.
U.S. consulates across Mexico can assist when something goes wrong, from replacing a stolen passport to contacting family after an arrest or medical emergency. The State Department’s message does not tell snowbirds to stay home this winter. Instead, it asks them to treat Mexico travel with the same care they would give any long international trip and to remember that a bit of preparation can make a sunny winter far less stressful.
