Mexico🇲🇽

Not to get in. Tourists are admitted with a valid passport, and the immigration officer sets the length of stay, up to a maximum of 180 days. The UK Foreign, Commonwealth and Development Office (FCDO) notes that officials may ask for return tickets, proof of accommodation and evidence of funds. Medical insurance is not on that list.

Two things are often confused with an entry insurance rule:

• Mexican auto insurance. If you drive your own car across the border, the US State Department says US liability cover is not recognised in Mexico, so you need a Mexican liability policy. That is car insurance, not health insurance, and Ombrela does not sell it.
• State tourist charges. Quintana Roo, home to Cancun and Tulum, has a visitor tax that the FCDO says you can pay online. It is a tax, not insurance.

The reason to carry travel medical insurance is financial. Medicare says it usually does not cover care outside the US, and the US Embassy in Mexico says most hospitals there do not accept US health insurance. You can compare travel medical plans on Ombrela for your dates.

Quality depends heavily on where you are. Mexico City, Guadalajara, Monterrey and the main resort areas have modern private hospitals. In rural areas the FCDO says response times, ambulances and medical expertise may be limited.

Payment is the part that catches visitors out. The US Embassy in Mexico says hospitals usually require payment before treatment and place holds on credit cards when a patient is admitted. It adds that most private hospitals charge more than visitors expect and require the bill to be settled before the patient leaves. The FCDO adds that not all hospitals will deal directly with insurers, so you may have to pay and claim.

Practical steps that follow from that:

• Carry a credit card with enough headroom for a deposit.
• Ask for a written, itemised estimate before non emergency treatment.
• Call your insurer's assistance line early, so it can speak to the hospital billing office and, where possible, arrange direct payment.

The medical cost estimator can help you judge how high a policy maximum to choose.

• Stomach illness. The FCDO advises drinking only boiled or bottled water. The CDC has reported cyclosporiasis among travelers returning from the Cancun and Riviera Maya area.
• Mosquito and tick borne disease. The CDC lists dengue across much of the country, malaria risk in parts of Campeche, Chiapas and southern Chihuahua, and Rocky Mountain spotted fever in northern states including Baja California, Sonora, Chihuahua, Coahuila and Nuevo Leon.
• Altitude. Mexico City sits above 2,200 meters. Headache, breathlessness and poor sleep are common in the first days, and the FCDO lists altitude sickness and air pollution among the health risks.
• Tainted alcohol. The FCDO warns that tainted alcohol has caused illness and blackouts, and that methanol poisoning has caused deaths.
• Water and adventure activities. The FCDO says sea conditions can be unpredictable, some beaches are unpatrolled, and equipment for scuba and jet skis may not meet the standards you are used to.
• Crime. The State Department advisory reissued on May 29, 2026 is Level 2 overall but varies by state, with six states at Level 4. Read the entry for the state you are visiting and check the current level before you go.

Road accidents are a further cause of serious injury, and the FCDO notes that many local drivers do not have car insurance.

It depends on the coast. The US National Hurricane Center sets the eastern Pacific season, which affects Los Cabos, Puerto Vallarta and Acapulco, at May 15 to November 30. The Atlantic season, which affects Cancun, the Riviera Maya, Cozumel and the Gulf coast, runs from June 1 to November 30 and peaks around September 10.

Travel medical insurance is medical and evacuation cover, not trip cancellation. It will not refund a resort stay lost to a storm. It can pay for treatment if you are hurt, and some plans include a natural disaster evacuation benefit. Central highland destinations such as Mexico City, Oaxaca City and San Miguel de Allende are not hurricane destinations, though heavy rain is common in summer, and the FCDO notes that earthquakes occur regularly.

• A policy maximum that covers a private hospital stay. Private hospital bills in resort areas can be large and must be paid before discharge.
• Emergency medical evacuation. Useful if you are far from a major city, or if you want the option of transfer to a hospital in the United States when it is medically necessary. Read how evacuation cover works.
• Adventure sports cover that matches your plans. Cenote diving, ATV tours, surfing and zip lines may be limited or excluded without an add on. See travel insurance for adventure sports.
• An assistance line that works around the clock. In Mexico the insurer's ability to speak to the hospital for you is often the difference between a card hold and a guarantee of payment.
• Acute onset of existing conditions, if you manage a long term condition.

Ombrela is a comparison site, not an insurer. Plans such as Atlas International, Patriot International Lite, Patriot Platinum International and Safe Travels International cover trips to Mexico, and you can compare them side by side. There is more detail in our Mexico travel insurance article.

Call 911 in an emergency. If you can choose, go to a private hospital in the nearest large town, and tell staff at registration that you have travel medical insurance.

Phone the assistance number on your ID card before you agree to anything beyond emergency stabilisation. Ask the insurer whether it can place a guarantee of payment with the hospital. If the hospital will not accept one, pay by card and keep the itemised bill, medical report, receipts and proof of payment for your claim.

For minor problems, many pharmacies in large cities have a doctor on site, as the FCDO notes, and a consultation there is quick. Bring prescriptions in their original packaging, because pharmacies may not honour a foreign prescription.

Continuing south? See the guide for Costa Rica.