Belize has peak mosquito activity during the rainy season from June through November. The low-lying coastal areas, the Cayo and Toledo districts, and areas near standing water carry the highest risk. The cayes and offshore islands generally have lower mosquito density due to sea breezes.
Dengue fever is the primary concern, with moderate outbreaks during the wet season. Malaria (P. vivax) persists at low levels in rural southern districts. Belize has made significant progress in malaria reduction.
Aedes aegypti is the main dengue vector in towns and populated areas. Anopheles species carry malaria in rural forested areas. Travelers to the mainland interior face higher exposure than those staying on coastal cayes.
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Explore mosquito risk briefings for other destinations in Central America & Caribbean.
Disease presence data is sourced from WHO, CDC, ECDC, and OpenDengue. This is not medical advice — consult a travel health professional before your trip.