Petra and Wadi Rum are light on bites. The Dead Sea needs a night routine.
Jordan has no malaria, dengue or Zika. The insects to plan around are at the Dead Sea and in the Jordan Valley, where night-biting sand flies spread a skin infection and evening mosquitoes can carry West Nile virus, mostly from late spring to early fall. An air-conditioned room with the windows shut does much of the work.
Yes, but the ones that matter stay mostly in one corner. Jordan has no malaria, dengue or Zika, and Amman, Petra and the Wadi Rum camps tend to be light on bites. The stop that needs a routine is the Dead Sea and the Jordan Valley, where night-biting sand flies spread cutaneous leishmaniasis, a skin infection, and evening mosquitoes can carry West Nile virus, mostly from late spring to early fall.
Sand flies at the Dead Sea and in the Jordan Valley
The CDC's Jordan page lists leishmaniasis, spread by sand fly bites. Here the skin form comes mainly from Leishmania major, carried by the sand fly Phlebotomus papatasi, and the Jordan Valley and the Dead Sea are its main focus. Sweimeh, where the Dead Sea resorts stand, was hyperendemic in a 1992 study, with positive skin tests in every resident over age 5. Ministry of Health surveillance counted 1,243 cases nationwide from 2010 to 2016.
The most useful finding for a visitor comes from two outbreaks among foreign workers housed near the Dead Sea, each of which infected about 1 in 5 of them. In 2007–2008, none of the 48 workers in air-conditioned rooms got sick, against 26 of 124 in rooms without it. Sand flies bite from dusk to dawn, so sleep in an air-conditioned room with the windows closed, put repellent on before dinner by the pool, and wear long sleeves and pants after dark.
West Nile and the evening mosquitoes
The evening mosquitoes at Dead Sea resorts and in the Jordan Valley include Culex, the West Nile carrier. The virus circulates in Jordan, mostly unrecognized. A countrywide blood survey published in 2019 found past infection in 8.6% of 801 people, and Jordan Valley residents had 22 times the odds of infection of highland residents. On September 4, 2024, the Ministry of Health reported a confirmed case in a child from Karak who fell ill in July, and the World Health Organization's Eastern Mediterranean office said the risk had risen as neighboring countries reported more cases. The sand fly routine covers this too, and our picaridin vs. DEET comparison helps you pick the spray.
When to go
November to March is the easy half of the year. Petra and Wadi Rum are cold at night, and winter is largely bite-free. Late May and early June are borderline in Wadi Rum. June to September is the hardest stretch at the Dead Sea and in the Jordan Valley, with evening mosquitoes and sand flies at their most active and the West Nile season under way. The Dead Sea's swarms of non-biting flies, the most common complaint there, can turn up in any season.
Two short notes. You don't need a yellow fever certificate flying in from the US; Jordan asks for one only from travelers 1 year or older arriving from a country with yellow fever risk, including layovers of more than 12 hours there. And the CDC's Jordan page lists MERS, which may spread to people from camels, so keep camel contact at Wadi Rum or Petra brief and wash your hands afterward.
Where you're going
How the main stops compare.
Petra & Wadi Musa
Forum posters report few mosquitoes and no flies at Petra. Southern Jordan counts as a leishmaniasis area in national surveillance, so cover up if you're out after dark in the warm months.
Wadi Rum camps
Desert camps tend to be close to mosquito-free from November to March, when nights are cold. In late spring and summer a few gather near standing water in the village, so pack repellent for the evening.
Dead Sea & the Jordan Valley
Jordan's main sand fly and leishmaniasis area, and where West Nile infection has been most common. From late spring to fall, use repellent at the pool at dusk and sleep in an air-conditioned room with the windows closed.
Aqaba & the Red Sea
No disease or bite figures single out Aqaba. Evening repellent on a warm-season terrace and a screened, air-conditioned room at night are a sensible default.
Adding Israel or Egypt? Our Israel and Egypt briefings cover Tel Aviv's summer West Nile season, the Negev's sand flies, the Nile and the Red Sea.
The Jordan kit
- Picaridin 20% travel sprays: odorless and light on the skin for dinner by the pool, in a 3.4 oz size that rides in a carry-on.
- Permethrin 0.5% for evening clothes: treat a long-sleeved shirt, trousers and socks at home 48 hours before you fly if a summer Dead Sea night is on the plan. It goes on clothing, never on skin.
What travelers report
Paraphrased from TripAdvisor threads and a hotel review, and linked so you can read them in full. None is dated to a year, and the month and your spot in the desert change the picture.
- Wadi Rum, Petra, Dead Sea · late May and early June
Replies were mixed: one traveler saw a few mosquitoes in Wadi Rum village, another found none at all in a Wadi Rum camp at the end of May the year before, and a third had been badly bitten in Wadi Rum in August. TripAdvisor ↗
- Wadi Rum · November
Posters expected few or no mosquitoes in November; one recalled not a single mosquito and cold evenings in the first week of November, while another noted mosquitoes can still be found near stagnant water. TripAdvisor ↗
- Movenpick Resort & Spa Dead Sea, Sweimeh
A reviewer warned of large numbers of flies across the Dead Sea area and the Jordan River, while Petra and Wadi Rum had been free of them. TripAdvisor ↗
One rule outlasts the trip. Any fever during or after your trip means a doctor visit, and you tell them you were in Jordan. That includes a fever with headache or rash after a summer visit, and a skin sore that hasn't healed weeks later.
Traveler questions
Do sand flies at the Dead Sea spread disease?
They can. Sand flies spread cutaneous leishmaniasis, a skin infection, and the Dead Sea and the Jordan Valley are its main focus in Jordan. They bite from dusk to dawn, mostly from late spring to early fall. In a 2007–2008 outbreak among workers housed near the Dead Sea, none of those in air-conditioned rooms got sick, so an air-conditioned room with the windows closed, evening repellent and long sleeves after dark go a long way.
Do I need malaria pills or a yellow fever vaccine for Jordan?
No. The CDC's Jordan page lists no malaria and recommends no malaria medicine, and the World Health Organization lists Jordan among the countries where malaria never existed or disappeared without specific measures. The CDC doesn't recommend the yellow fever vaccine, and you don't need proof when you fly in directly from the US. Jordan does require it from travelers 1 year or older arriving from a country with yellow fever risk, including airport layovers of more than 12 hours in one.
Are there mosquitoes in Petra and Wadi Rum?
Few. Forum posters report minimal mosquitoes at Petra, and from November to March the Wadi Rum camps are cold at night and tend to be close to mosquito-free. In late spring and summer some turn up near standing water in Wadi Rum village, so carry repellent for the evening. The Dead Sea is the stop where bites are a real question.
What's the best time to visit Jordan for fewer bugs?
November to March. Winter is largely bite-free, and Petra and Wadi Rum are cold at night. June to September is the hardest stretch at the Dead Sea and in the Jordan Valley, when evening mosquitoes and sand flies are most active and the West Nile season runs. Late May and early June are borderline in Wadi Rum.
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.
- CDC destination page for travelers
- CDC Travelers' Health
- World Health Organization
- Peer-reviewed study (PubMed Central)
- World Health Organization
- Peer-reviewed study (PubMed Central)
- jordannews.jo
- Peer-reviewed study (PubMed Central)
- Peer-reviewed study (PubMed Central)
- Peer-reviewed study (PubMed Central)
- Peer-reviewed study (PubMed Central)