How to avoid mosquito-borne illnesses in Spain
You probably picture sangria, siestas, and seaside towns – not mosquitoes. But they’re definitely around, and some of them bite back harder than others. While Spain doesn’t have malaria, it does get cases of dengue, West Nile virus, and chikungunya – especially in warmer southern and coastal regions. You don’t need to panic, but it’s smart to be prepared.
Dengue, chikungunya, and West Nile virus
Dengue and chikungunya are transmitted by Aedes mosquitoes – the ones that bite during the day. These viruses are more common in tropical climates but have started popping up in southern Europe, especially during hot, wet summers.
West Nile virus is spread by Culex mosquitoes, which bite from dusk to dawn. Most cases in Spain are reported in Andalucia, especially near wetlands like Doñana National Park.
Spain travel health tips to avoid mosquito bites:
- Use repellent during the day and night. Choose one with at least 30% DEET or 20% picaridin.
- Cover up when you can. Loose-fitting long sleeves and trousers are especially useful at dawn and dusk.
- Stay somewhere with air-con or window screens. If you're camping or in basic accommodation, a mosquito net isn't a bad shout.
- Watch out for standing water. Empty buckets, trays, or anything collecting rain if you’re staying in rural areas – they’re mosquito breeding grounds.
- Feeling unwell? If you’ve got a fever, headache, muscle pain, or rash, skip the ibuprofen – it can make viral symptoms worse. Stick to paracetamol and see a doctor.
Staying healthy in Spain
Once you’ve got the mosquito thing sorted, there are a few other Spain travel health tips worth knowing, especially if you're mixing beach days with hiking, partying, or remote countryside escapes.
Rabies risk
Rabies in Spain is rare, but not impossible. Bats are the main concern, especially in caves or rural areas. Stray dogs and cats exist, though they’re not a major threat in cities or tourist towns.
If you’re scratched or bitten:
- Wash the wound right away with soap and clean water.
- Disinfect with alcohol or iodine if you have it.
- Get medical help fast – even if you’re vaccinated, you might still need follow-up shots.
Planning to hike, camp, or cycle in remote areas? Talk to a travel clinic about getting a rabies vaccine in advance. It’s a smart move if you're staying long-term or heading off-grid.
Food and water safety
Spain is low-risk when it comes to food-related illnesses, but that doesn’t mean you can eat everything with impunity.
- Stick to busy tapas bars – if locals are lining up, you're probably fine.
- Avoid raw or undercooked seafood in beach towns where food safety standards vary.
- Tap water is safe to drink across most of Spain, including major cities and tourist hubs. In older rural homes or if the water tastes odd, bottled water is a better bet.
- Going hiking or camping? Bring water purification tablets or a filter for natural sources.
What to do if you get traveler’s tummy
It’s rare in Spain, but a sudden change in diet can mess with your system.
- Rehydrate with oral rehydration salts or an electrolyte drink.
- Eat bland, starchy foods like toast, rice, or boiled potatoes.
- Avoid dairy, alcohol, and fried food until things settle.
- Skip anti-diarrheal meds unless necessary – let your body clear it out.
- If symptoms last over 48 hours, or you have a fever or blood in your stool, get medical help.
Coping with heat and air quality
Spain gets seriously hot in summer, especially in inland cities like Seville, Córdoba, and Madrid. Add in wildfires and Saharan dust clouds, and it can be tough on your lungs.
- Stay indoors or in the shade from noon to 4 pm.
- Drink water constantly – don’t wait until you’re thirsty.
- Use sunscreen and wear a hat – sunburn here creeps up fast.
- Sensitive to air quality? Pack an N95 mask, especially if you're heading to cities during a heatwave or fire season.
Heading into the mountains? Spain’s peaks – like the Sierra Nevada or the Pyrenees – aren't super high, but the altitude can still affect you.
- Give yourself a day to adjust if you're going above 2,000m.
- Go easy on booze and heavy meals at high altitudes.
- Listen to your body – if you're dizzy or short of breath, take a break and hydrate.