Will Portugal heatwaves reaching 44 degrees impact digital nomads?

How dangerous heat days are reshaping Portugal summers

Dangerous heat-and-humidity days have more than doubled globally since the 1970s, with Portugal among the countries logging a steep upward trend, according to a recent climate analysis cited by Portuguese media. The country recorded four distinct heatwaves in summer 2022 and broke May temperature records earlier this year.

Forecasters tie the current pattern to persistent heat dome and omega block systems parked over Western Europe, trapping hot air across the Iberian Peninsula. Inland Portugal, including parts of Alentejo and the Lisbon interior, is projected to reach 40 to 44 degrees Celsius (104 to 111 F) during peak episodes clustered around late June and the core summer months.

Who carries the most risk

Tourists, expats and remote workers spending long hours outdoors, whether surfing, hiking, sightseeing on foot or coworking from terraces, face the sharpest exposure. Humidity blunts the body's ability to cool itself, so physical exertion during humid heat days becomes especially hazardous.

Health authorities flag older adults, babies and young children, pregnant travelers and people with cardiac, respiratory or chronic conditions as the highest-risk groups. Heatwaves in Portugal have also triggered wildfires, transport disruption and added strain on hospitals, the UK Foreign, Commonwealth & Development Office said.

What travelers and residents should line up

The FCDO advises all visitors to carry travel insurance and confirm their destination can handle pre-existing conditions. Key health-system details:

• Emergency care: dial 112 for ambulance services across Portugal.
• Non-emergency helpline: mainland Portugal at +351 808 24 24 24 (press 9 for English), with separate lines for Madeira, Porto Santo and the Azores.
• State healthcare access: EU and UK visitors should carry a GHIC or EHIC for medically necessary treatment, though neither covers private clinics or medical repatriation.
• Medications: UK prescriptions aren't recognized; bring enough supply for the full stay and expect to pay out of pocket at local pharmacies.

Practical heat guidance from European health agencies: drink water steadily, skip alcohol and caffeine during spikes, wear light clothing and shift walking tours, queues and outdoor work to early morning or evening. Air-conditioned museums, indoor markets and shaded streets remain the safest midday options and no one should be left in a closed vehicle.

Read our full Portugal guide for the complete picture or browse more visa updates.