Kandy had a hard dengue year. The Cultural Triangle adds sand flies at dusk.

Yes. Kandy was among Sri Lanka's hardest-hit districts in the 2026 dengue epidemic, so the day-biting mosquitoes matter even in the cooler hills, and the lowland Cultural Triangle around Sigiriya, Dambulla and Polonnaruwa adds sand flies at dusk. There is no malaria. Our Sri Lanka briefing covers Colombo, Ella and the rest of the island.

Kandy's dengue year

Sri Lanka's 2026 epidemic passed 100,000 cases by September 27, more than half of them in the Western Province around Colombo, according to National Dengue Control Unit figures reported by the European Centre for Disease Prevention and Control. Kandy district, in the Central Province, was among the hardest-hit districts, according to press reports of the unit's data. The unit flagged it in January, in areas hit by the floods of Cyclone Ditwah, and in June health officials named Galagedara, Gampola and Udapalatha among the district's high-risk areas, Sri Lankan media reported. Nationally, cases peaked in July and were falling by September.

Dengue spreads through Aedes mosquitoes, which bite by day with peaks after sunrise and in the late afternoon. Kandy sits at roughly 1,600 feet (500 m), and the hills tend to be lighter on bites than the lowlands, but the mosquitoes are in its gardens, hillside guesthouses and the paths around the lake. Put repellent on over sunscreen after breakfast, again after a sweaty climb and before the late afternoon, and sleep in an air-conditioned room or under a net without holes. Our dengue & Zika routine has the full schedule.

Sand flies in the Cultural Triangle

Sigiriya and Dambulla are in Matale district, part of the Central Province with Kandy. Polonnaruwa and Anuradhapura, farther north, make up the North Central Province. The Triangle is lowland dry zone, and its irrigation tanks and paddy fields tend to bring more mosquitoes than Kandy does.

It is also a leishmaniasis hotspot. The skin infection, which the CDC lists for Sri Lanka, is spread by phlebotomine sand flies that bite from dusk to dawn. A 2025 study in PLoS Neglected Tropical Diseases put Polonnaruwa's average yearly rate in 2009–2023 at 52.21 cases per 100,000 people, second only to Hambantota in the south, with Anuradhapura at 40.30 and Matale at 25.48. Anuradhapura's and Matale's rates rose steadily after 2015, and cases peak around June to August. Kandy district isn't among the leading districts. Evening jeep safaris to Minneriya or Kaudulla, sunset on Pidurangala and outdoor lodge dinners are the exposure, so wear long sleeves and trousers from dusk, ideally treated with permethrin.

No malaria, one vaccine question

WHO certified Sri Lanka malaria-free in 2016, and the CDC recommends no malaria medicine for the country. Japanese encephalitis is present, and the CDC's advice depends on the trip. A Kandy stay fits its "short-term travel to urban areas," while homestays among the paddies come closer to its "visiting rural areas," as the FAQ below explains. Pregnant travelers should talk to a provider, since the CDC lists Zika for Sri Lanka. Yellow fever vaccine isn't needed when you fly from the US.

When to go

Roughly February to April tends to be the easiest stretch, after the northeast monsoon's rains in the dry zone and before the mid-year peaks. June to August is the hardest, with the 2026 dengue peak and the leishmaniasis season. Kandy's Esala Perahera festival usually falls in July or August, inside that window. No month is dengue-free.

Where you're going

Heading to the beaches afterward? Our Galle and south coast briefing covers Galle Fort, Mirissa and Yala.

What travelers report

Paraphrased from a TripAdvisor review and forum thread and linked so you can read them in full. One is from 2011 and the other is undated, so read them for where bites happen and use the figures above for this year.

• Jetwing Vil Uyana, Sigiriya · 2011

  A guest complained about the number of mosquitoes at this Sigiriya resort. TripAdvisor ↗

• Sigiriya (Jetwing Vil Uyana and Cultural Triangle hotels) · June

  Asked whether Vil Uyana supplied mosquito nets and how bad mosquitoes are in June, a destination expert said nets are unnecessary in an air-conditioned room but recommended DEET spray outside it. Another traveler said hotels in the Cultural Triangle generally lacked nets, which were more common at smaller places without air conditioning, and a third said modest guesthouses usually provide nets or air conditioning. TripAdvisor ↗

Any fever during or within two weeks after your trip means a doctor visit, and you tell them you were in Sri Lanka. So does a skin sore that won't heal in the months after.

Traveler questions