Palau Travel Health Guide: Vaccines, Risks & Safety Tips

Your Health Guide to Traveling in Palau

Palau is one of the most extraordinary places on earth. Turquoise lagoons, ancient jellyfish lakes, and some of the world's most celebrated dive sites sit inside a tropical island nation in the western Pacific, tucked within Micronesia. Whether you are heading there to drift through Jellyfish Lake, explore the Blue Corner, or simply slow down on a remote island, Palau rewards the traveler who shows up prepared. This guide covers everything you need to know about travel health in Palau, from vaccines and food safety to entry requirements and common illnesses, so you can focus on the experience itself.

Palau sits in a warm, humid, tropical marine environment. That setting is part of what makes it so beautiful, and it also shapes the health picture. Mosquitoes are present year-round, tap water safety varies by location, and a handful of vaccine-preventable diseases are worth taking seriously before you go. None of this is cause for worry. It is cause for a good plan.

WayPax is here to help you build that plan. Read through each section below, and by the time you finish, you will know exactly what steps to take before departure.

At a Glance

Category	Details
Risk Level	Medium
Region	Oceania, western Pacific (Micronesia)
Tap Water Safe	No. Tap water in Koror and Airai is not safe to drink. Use bottled or boiled water.
Vaccines Recommended	Yes. Hepatitis A, Hepatitis B, Typhoid, MMR, and routine vaccines are recommended.
Visa Required for US Citizens	No visa required. Complete the Palau Entry Form within 72 hours before departure and carry a valid passport.

Frequently Asked Questions

Do I need vaccines before traveling to Palau?

Yes, several vaccines are recommended before you travel to Palau. According to the CDC, hepatitis A, hepatitis B, typhoid, and measles-mumps-rubella are all recommended for most travelers, in addition to keeping your routine vaccines current. Book a travel health appointment at least four to six weeks before departure so there is time for vaccines to take effect.

Is tap water safe to drink in Palau?

No. Palau's Ministry of Health and Human Services has confirmed that tap water in Koror and Airai is not potable and is not safe for drinking. Stick to sealed bottled water or water you have brought to a full rolling boil. This applies to brushing teeth and making ice as well.

Are there health entry requirements for Palau?

No vaccination certificates are required for entry into Palau. However, the U.S. State Department confirms that you must complete the Palau Entry Form no more than 72 hours before your departure. That form generates a QR code you must present on arrival. Your passport also needs to be valid for at least six months from the date you enter.

What common illnesses affect travelers in Palau?

The most common concerns for travelers in Palau are gastrointestinal illnesses from contaminated food or water, and mosquito-borne febrile illnesses (illnesses that cause fever and flu-like symptoms). The CDC links hepatitis A and typhoid recommendations directly to food and water exposure risk in Palau, while Canadian travel health guidance advises preventing mosquito bites at all times during your trip.

How good are medical facilities in Palau?

Medical facilities in Palau are limited compared to what most U.S. travelers are used to at home. Post-exposure rabies vaccines, for example, may only be available at larger urban or suburban medical facilities, according to the CDC. For serious conditions, medical evacuation may be necessary. Comprehensive travel health insurance that covers evacuation is strongly worth considering before you go.

Get Your Personalized Travel Health Plan for Palau

Palau brings together a handful of health considerations that are easy to manage when you have a clear plan. Hepatitis A and typhoid are both vaccine-preventable, and the tap water situation in Koror and Airai means you will want to know exactly what to drink and what to avoid from day one. A licensed travel health provider can review your vaccination history and your specific itinerary to make sure you leave home fully covered. WayPax connects you with the tools and guidance to get that plan in place before you board.

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Health Risks in Palau

Palau carries a medium overall travel health risk. The environment itself, a hot, humid, tropical island setting in the western Pacific, shapes most of what you need to prepare for. Mosquitoes are active year-round, food and water safety require attention, and several vaccine-preventable diseases are present in the region.

Tropical Climate and Environmental Exposure

Palau sits in a tropical marine climate with persistent heat, high humidity, and strong equatorial sun. These conditions increase your risk of heat exhaustion, sunburn, and dehydration, especially if you are diving, snorkeling, or spending long hours outdoors. Drink plenty of safe water throughout the day, wear sun protection, and pace yourself during the first few days while your body adjusts. The warm, humid environment also supports year-round mosquito activity, which connects directly to the disease risks below.

Mosquito-Borne Diseases

Mosquito-borne illness is a real consideration in Palau. Canadian travel health guidance advises preventing mosquito bites at all times during your stay, consistent with concern about arboviral diseases (illnesses spread by mosquitoes, such as dengue fever). If you are pregnant, additional sexual health precautions are also advised given the potential for arboviral exposure. Wear long sleeves and pants during dawn and dusk hours, use an EPA-registered insect repellent containing DEET or picaridin, and sleep in screened or air-conditioned rooms when possible.

Vaccine-Preventable Diseases

According to the CDC, hepatitis A (a liver infection spread through contaminated food or water), hepatitis B (a liver infection spread through blood, sexual contact, or medical procedures), and typhoid (a bacterial infection spread through contaminated food or water) are all present risks for travelers to Palau. Hepatitis B is described as endemic (meaning it circulates continuously in the local population) by Smartraveller. Typhoid risk is highest if you are staying with local friends or relatives, or spending time in smaller towns or rural areas. All three diseases are vaccine-preventable, which makes pre-travel vaccination one of the most straightforward steps you can take.

Measles

The CDC has issued a Level 1 travel health notice for measles tied to the global rise in cases. Measles is a highly contagious viral illness spread through the air. Being fully vaccinated before you travel is the most effective protection. If you are unsure whether your measles-mumps-rubella (MMR) vaccination is current, a travel health provider can check your records and advise accordingly.

Rabies

According to the CDC, dogs infected with rabies are not commonly found in Palau, so the overall risk is low. The more practical concern is access to care. Post-exposure rabies treatment (the vaccine series given after a potential exposure) may only be available at larger urban or suburban medical facilities in Palau. If your itinerary takes you into remote areas, or if you have a higher likelihood of animal contact, a travel health provider can help you decide whether pre-exposure vaccination makes sense for your specific trip.

Recommended Vaccinations for Palau

Several vaccines are recommended before traveling to Palau, and your specific needs will depend on your vaccination history, age, and itinerary. According to the CDC, the following vaccines are recommended for most travelers.

• Hepatitis A: Protects against a liver infection spread through contaminated food and water. The CDC recommends this vaccine for all unvaccinated travelers aged one year and older, and for infants six to eleven months old traveling to Palau. Get the first dose at least two weeks before departure.
• Hepatitis B: Protects against a liver infection spread through blood, sexual contact, or unsterile medical or dental equipment. The CDC recommends this vaccine for all unvaccinated travelers of any age. The standard series requires multiple doses over several weeks, so start early.
• Typhoid: Protects against a bacterial infection spread through contaminated food and water. The CDC recommends this vaccine for most travelers, particularly those staying with local friends or relatives or visiting rural areas. Allow at least two weeks before departure for the vaccine to take full effect.
• Measles-Mumps-Rubella (MMR): Protects against three viral illnesses, including measles, which the CDC has flagged with a Level 1 global travel notice. The CDC recommends this for all international travelers who are not fully vaccinated, including an early dose for infants six to eleven months old.
• Routine vaccines: This includes chickenpox (varicella), diphtheria-tetanus-pertussis, influenza, polio, and shingles as appropriate for your age. The CDC advises that all routine vaccines should be current before any international travel.
• COVID-19: The CDC recommends that all eligible travelers be up to date with their COVID-19 vaccines before traveling internationally.
• Rabies (for select travelers): Protects against a fatal viral illness transmitted through animal bites or scratches. The CDC recommends pre-exposure vaccination for travelers with higher animal-contact risk or those who may have difficulty accessing prompt post-exposure care in Palau. A travel health provider can assess whether this applies to your trip.

Your final vaccine list should be reviewed by a licensed travel health provider who can account for your personal health history and the specific details of your itinerary. Vaccine needs are not one-size-fits-all, and a provider can help you prioritize based on what matters most for your trip.

Tap Water and Food Safety in Palau

Tap water in Palau is not safe to drink. This is the single most important food and water safety fact to carry with you throughout your trip.

Water Safety

Palau's Ministry of Health and Human Services has specifically confirmed that tap water in Koror and Airai is not potable (not safe for human consumption). The U.S. State Department echoes this advisory. Drink sealed bottled water, or boil water at a full rolling boil before consuming it. Use bottled or boiled water for brushing your teeth, and be cautious with ice in drinks unless you can confirm it was made from a safe water source. Carbonated bottled drinks are generally a safe choice when sealed.

Food Safety

The same contamination risk that makes tap water unsafe also applies to food prepared with that water. Be thoughtful about where and what you eat. Food that is cooked through and served hot is your safest option. Raw salads, raw shellfish, and fresh-cut fruit that you have not peeled yourself carry higher risk because they may have been washed in tap water. Street food can be perfectly fine when it is prepared fresh and served piping hot in front of you. When in doubt, choose food from busy, well-patronized stalls or restaurants where turnover is high and food does not sit out. Washing your hands with soap and safe water before eating is one of the most effective habits you can build into every meal.

Common Traveler Illnesses in Palau

The illnesses most likely to affect travelers in Palau fall into two main categories: gastrointestinal illness from food and water, and mosquito-borne febrile illness. Knowing what to watch for means you can act quickly if something does not feel right.

Traveler's Diarrhea

Traveler's diarrhea is a gastrointestinal illness caused by bacteria, viruses, or parasites consumed through contaminated food or water. Symptoms typically include loose or frequent stools, stomach cramps, nausea, and sometimes vomiting, usually starting within the first few days of arrival. The most effective prevention is careful food and water choices throughout your trip. If you develop symptoms, staying well-hydrated is the priority. Oral rehydration salts are a practical item to carry in your bag. If symptoms are severe, bloody, or persist beyond a couple of days, seek medical care promptly.

Mosquito-Borne Febrile Illness

Canadian travel health guidance advises preventing mosquito bites at all times in Palau, reflecting concern about arboviral illnesses (diseases spread by mosquitoes, such as dengue fever) that cause fever, severe headache, joint and muscle pain, and rash. There is no specific vaccine available for dengue for most travelers, so bite prevention is your primary tool. Use insect repellent consistently, cover exposed skin during peak mosquito hours, and make sure your accommodation has screens or air conditioning. If you develop a high fever and flu-like symptoms during or after your trip, tell your doctor you have been to Palau.

Animal Bite and Rabies Exposure

Rabies is a fatal viral illness transmitted through the saliva of an infected animal, typically via a bite or scratch. While the CDC notes that rabies-infected dogs are not commonly found in Palau, exposure from other animals remains possible. The key practical issue is that post-exposure treatment may only be available at larger medical facilities on the island. If you are bitten or scratched by any animal, wash the wound thoroughly with soap and water for at least 15 minutes and seek medical care immediately, even if the wound seems minor. Do not wait to see whether symptoms develop.

Visa Requirements for US Citizens Visiting Palau

U.S. citizens do not need a visa to visit Palau. Entry is straightforward, but there are a few steps to complete before you travel.

The U.S. State Department confirms that your passport must be valid for at least six months from the date you arrive in Palau. Make sure you check your passport expiration date well before your trip, as renewing a passport can take several weeks.

You must also complete the Palau Entry Form no more than 72 hours before your departure. Once submitted, you will receive a QR code that you must present to immigration officials on arrival. Do not leave this until the last minute. The U.S. State Department lists this as a firm requirement.

One source, VisaHQ, indicates that U.S. citizens may stay in Palau for up to one year without a visa. However, this was not confirmed in the primary U.S. government advisory, so verify your permitted length of stay directly with official Palau immigration or the U.S. State Department before you travel, as policies can change.

No vaccination certificates are currently required for entry into Palau, based on available sources. That said, entry requirements can change, and checking the U.S. State Department's Palau advisory close to your departure date is always a good habit.

Quick Answers

I'm planning a trip to Palau, what vaccines should I check before I go?

According to the CDC, travelers to Palau should be up to date on hepatitis A (a liver infection spread through contaminated food or water), hepatitis B (a liver infection spread through blood or sexual contact), typhoid (a bacterial infection from contaminated food or water), and measles-mumps-rubella. Routine vaccines including influenza, COVID-19, and chickenpox should also be current before you travel. Book a travel health appointment at least four to six weeks before departure so there is enough time for multi-dose vaccine series to be completed.

Can you tell me if it's safe to drink tap water and eat local food in Palau?

Tap water in Palau is not safe to drink. Palau's Ministry of Health and Human Services has confirmed that tap water in Koror and Airai is not potable. Drink sealed bottled water or water that has been brought to a full rolling boil. For food, choose dishes that are cooked through and served hot, avoid raw salads and shellfish, and peel your own fruit. These habits significantly reduce your risk of gastrointestinal illness during your stay.

What health risks should I prepare for before traveling to Palau?

Palau carries a medium travel health risk. According to the CDC, the main health risks include hepatitis A, hepatitis B, typhoid, and measles, all of which are vaccine-preventable. Canadian travel health guidance also advises preventing mosquito bites at all times due to the risk of mosquito-borne febrile illness. Palau's tropical climate means heat, humidity, and sun exposure are additional factors to manage, particularly during outdoor and water-based activities.

If I get sick in Palau, what kind of medical care and travel insurance should I have?

Medical facilities in Palau are limited, and the CDC notes that post-exposure rabies treatment may only be available at larger urban or suburban facilities on the island. For serious conditions, medical evacuation may be required. Travel health insurance that includes medical evacuation coverage is strongly worth having before you depart. Keep a copy of your insurance policy and emergency contact numbers accessible throughout your trip.

Travel Smart in Palau: Your Health Checklist Starts Here

Palau's remote location in the western Pacific means that medical resources are not always close at hand, and the tap water situation in Koror and Airai adds a layer of daily planning that is easy to handle once you know what to expect. Mosquito-borne illness is a year-round consideration, and a licensed travel health provider can assess your full itinerary to determine whether any additional precautions or prescriptions are appropriate for your specific health history and travel plans. WayPax gives you the tools to get that conversation started and arrive in Palau ready for everything.

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