Travel Requirements & Health Advice for Thailand (2026)

✈️ Entry Requirements

• UK travellers must have a passport valid for at least 6 months from arrival and a blank page for entry stamps.

• A Digital Arrival Card (TDAC) needs to be completed online before travel.

• A Yellow Fever certificate is required only if you’re arriving from a country with transmission risk.

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💉 Recommended Vaccines

NaTHNaC (TravelHealthPro) recommends travellers check up-to-date vaccination advice for Thailand, which typically includes (depending on itinerary and activities):

• Routine UK vaccines (MMR, tetanus, diphtheria, polio)

• Hepatitis A (commonly recommended)

• Typhoid

• Hepatitis B (typically if you are working with patients/bodily fluids or are expecting to have unprotected intercourse)

• Rabies (especially if you plan outdoor activities/animal contact)

• Japanese encephalitis (if staying rural/long periods in endemic areas)

• Yellow fever (if coming from a country with risk)

(Exact recommendations vary with travel plans — see TravelHealthPro country page for full details.)

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🦟 Malaria Risk

• Malaria risk in Thailand is generally low and mostly restricted to rural forested border areas (near Myanmar, Cambodia, Laos).

• Popular cities and islands (Bangkok, Chiang Mai, Phuket, Koh Samui etc.) have very low to no malaria risk.

• Antimalarial tablets may be advised for specific itineraries — discuss with a travel health professional

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🏔️ Altitude Sickness

• Altitude sickness can occur in parts of Thailand with high elevations (e.g., northern mountains)

• Symptoms include headache, nausea, dizziness and shortness of breath; gradual ascent helps reduce risk.

• We may be able to help with altitude sickness prevention or medication if you plan high-altitude trekking

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🩺 Top Health Tips

• Visit a travel clinic 4–8 weeks before travel for personalised advice and vaccines.

• Protect against mosquitoes using repellent, nets, and clothing — this also helps prevent dengue and other infections

• Be prepared for common illnesses like colds or flu, diarrhoea and stomach upset or dehydration by having a travel pack with you:

  • masks,

  • cold and flu relief,

  • oral rehydration tablets,

  • diarrhoea medicines

  • prescribed medicines