Palau has year-round mosquito activity in its tropical Pacific climate, with peak risk during the wetter months from May through November. The main island of Babeldaob and the Koror area carry the highest exposure.
Dengue fever has been reported at low levels. The small population and island setting limit outbreak scale, but the tropical climate supports year-round mosquito breeding. Palau has no malaria transmission.
Aedes aegypti is the primary vector, breeding in domestic water containers and natural tree holes. The islands reliance on rainwater collection can create breeding habitat near homes.
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Explore mosquito risk briefings for other destinations in Oceania.
Disease presence data is sourced from WHO, CDC, ECDC, and OpenDengue. This is not medical advice — consult a travel health professional before your trip.