El Salvador has been malaria-free since 2021. Dengue is the one to plan for.
Dengue cases climbed from late June 2026 into at least mid-September, with the year's highest weekly count in early September. December to April is usually the dry season, and a daytime repellent habit covers the surf coast, San Salvador and the coffee highlands.
Yes. El Salvador has Aedes aegypti, the day-biting mosquito that spreads dengue, and dengue cases climbed from late June 2026 into at least mid-September. The World Health Organization certified the country malaria-free in 2021, so a winter trip to El Tunco, San Salvador or the Ruta de las Flores comes down to daytime repellent and a look at the latest dengue news before you fly.
Dengue climbed from late June
El Salvador started 2026 with a high number of dengue cases in the first weeks of January. They fell through early June, then rose again from late June into at least mid-September, according to the Pan American Health Organization's October 20 update. PAHO counted 4,786 cases through mid-September, 48 of them lab-confirmed. Press reports citing the health ministry put the year's highest weekly count, 280 suspected cases, in the week of August 30 to September 5. There is no CDC travel notice, and El Salvador isn't on the CDC's global dengue list.
For a winter trip, the question is whether the rise has eased by December. December to April is usually the dry season and normally the low point for dengue, and February to April tends to be the quietest stretch. This year's busy January is a sign that a strong rainy season can carry over, so check the health ministry's latest dengue update the week before a December or early January trip.
The routine is the same in any month. Aedes mosquitoes bite in daylight, with peaks after sunrise and in the late afternoon, so repellent goes on over sunscreen in the morning, again after every surf session and again before sunset. Saltwater and sweat shorten any repellent's protection window; our repellent timing guide has the numbers, and our dengue & Zika routine has the full daily schedule. The same mosquito spreads chikungunya, which stays at a low level here. The European Centre for Disease Prevention and Control counted 13 cases in El Salvador through August 2026, against 12 in the same period of 2025.
No malaria, and the rest of the CDC's list
El Salvador has reported no locally acquired malaria since 2017, and the CDC's El Salvador page recommends no malaria medicine and no yellow fever vaccine. It does list Zika, so if you're pregnant, talk with a healthcare provider before you book. It also lists leishmaniasis, spread by tiny sand flies that bite from dusk to dawn. For Chagas disease and New World screwworm, also on the CDC's list, the advice is to sleep in a screened room or under a net in rustic lodging, keep cuts clean and covered, and not linger around livestock.
Crossing a border changes the malaria picture. Our Guatemala briefing covers the CDC's malaria-medicine areas around Tikal and Petén, and our Honduras briefing covers Roatán and the Bay Islands, where the CDC also recommends prevention medicine.
Where you're going
Bites tend to follow the terrain. The humid lowland surf coast is likely the buggiest part of a typical trip, while the coffee towns of the Ruta de las Flores are cooler and tend to have fewer mosquitoes. In the beach towns, choose an air-conditioned or well-screened room.
El Tunco, El Zonte & El Sunzal
Humid lowland coast where the dengue mosquito can breed all year, and likely the buggiest part of a typical trip. Reapply repellent after every surf session and pick an air-conditioned or well-screened room.
San Salvador
Dengue circulates in El Salvador's urban areas, so the daytime habit applies on city days too. No malaria, and bites tend to be occasional.
Ruta de las Flores: Juayúa, Ataco & Apaneca
Cooler coffee-growing highlands where mosquitoes tend to be fewer, which makes this the lowest-bite stop on most routes. A small spray in the daypack is enough.
Suchitoto & Santa Ana
Inland towns where visitors advise packing repellent. Wear it during the day, when the dengue mosquito bites, and again before sunset.
The El Salvador kit
- Picaridin 20% travel sprays: odorless in the heat, layers over sunscreen and small enough for a beach bag or a day in San Salvador. One 3.4 oz bottle covers about a week of daily use for one person.
- A full-size backup in the checked bag. Reapplying after every surf session and again before sunset goes through a bottle faster than evening-only spraying.
What travelers report
Paraphrased from TripAdvisor forum threads and linked so you can read them in full. None is dated, and bites vary from one town, resort and season to the next.
- Suchitoto and Santa Ana
A poster said the government had started fumigating certain towns and recommended bringing repellent for Suchitoto and Santa Ana. TripAdvisor ↗
- El Salvador resort and day tours
Guests said their resort sprayed regularly and that they rarely needed repellent on tours. The posts come from different properties and years. TripAdvisor ↗
- El Salvador (residence)
A former resident said they had probably caught dengue there and linked it to a water cistern next to their hammock. TripAdvisor ↗
One rule outlasts the trip. Any fever during or after your trip means a doctor visit, and you tell them you were in El Salvador.
Traveler questions
Is there malaria in El Salvador?
No. The World Health Organization certified El Salvador malaria-free on February 25, 2021, the first country in Central America to reach that status, and it has reported no locally acquired cases since 2017. The CDC's El Salvador page recommends no malaria medicine. That changes if your trip continues into Guatemala or Honduras, where the CDC does recommend prevention medicine for some areas.
Is dengue a risk in El Tunco this winter?
Dengue is endemic in El Salvador, and the humid surf coast gives the dengue mosquito places to breed all year. Cases nationwide rose from late June 2026 into at least mid-September. December to April is usually the drier, lower-risk part of the year, but January 2026 opened with a high number of cases, so check the health ministry's latest dengue update before a December trip. Put repellent on over sunscreen in the morning and again after every surf session.
Do I need a yellow fever vaccine for El Salvador?
The CDC doesn't recommend it, and you don't need proof when you fly in directly from the US. El Salvador does require proof of vaccination from travelers 1 year or older arriving from a country with yellow fever risk, including airport transits or layovers of more than 12 hours in one. Check that rule if you're connecting through a risk country.
I'm pregnant. Is there Zika in El Salvador?
The CDC's El Salvador page lists Zika, which spreads through mosquito bites and from a pregnant woman to her baby. There is no current Zika travel notice for El Salvador. If you're pregnant, talk with a healthcare provider about Zika before you book.
Sources
Health authorities, surveillance reports and news coverage of official bulletins used for this briefing, last checked October 2026. Traveler reports are linked where they appear. This page summarizes public-health guidance and is not medical advice.