Overview
Portugal hot weather draws the attention of thousands of tourists due to its sunny days. It receives an average of 2,500–3,200 hours of sunshine each year, which is among the highest in Europe. For people who like water sports, the sea temperature may also be an issue.

Depending on the area, sea temperatures can vary from 14°C (57°F) in the winter to 20°C (68°F) in the summer. Despite its small size, Portugal has a variety of climates because of its topography and geographic location. It’s critical to realize that Portugal has three different climate zones: the central region, which includes Lisbon as the capital, the southern region, which includes the Algarve, and the northern region, which includes towns like Porto.
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Portugal Hot Weather: Extreme Warm Episodes

Portugal is anticipated to experience a hot weather episode till Wednesday, which is predicted to be “considerably severe” due to its duration and predicted maximum temperatures of 36 to 44 degrees Celsius.
The hot weather event is “expected to continue until August 6 with a high degree of confidence,” according to the Portuguese Institute of the Sea and Atmosphere (IPMA), despite a brief decrease in the west coast’s maximum temperatures on Friday and perhaps on Tuesday.
Maximum temperatures will be above average, or far above average, for the time of year. According to the IPMA, which indicates that there is a “very likely” chance that a heat wave will occur in most of mainland Portugal, especially in interior areas.
This episode of hot weather is expected to be considerably severe, both due to its duration and the very high maximum temperatures,” the IPMA warns, indicating that starting Sunday, high temperatures are expected to range between 36 and 40 degrees Celsius, except for a few areas along the coast, where they will be lower.
Most of the country is predicted to experience tropical nights, with lows beginning Monday that range roughly between 20 and 25 degrees Celsius.
Major Places of Portugal under Yellow Warning
Due to high maximum temperatures, a yellow alert will be in effect for the following 17 districts until Sunday morning: Bragança, Viseu, Évora, Porto, Guarda, Vila Real, Setúbal, Santarém, Viana do Castelo, Lisbon, Leiria, Beja, Castelo Branco, Aveiro, Coimbra, Portalegre, and Braga. Because of the consistently high maximum temperatures, the Faro area will be under a yellow warning from 9:00 a.m. on Saturday until 6:00 p.m. on Sunday.
Portugal Hot Weather and Deaths
Portugal hot weather got 264 lives. Which were reported in mainland Portugal during the m A significant increase in temperature is anticipated throughout the mainland in the next few days, which means that more “excess deaths” will surely be reported, according to Portugal’s national meteorological institute, IPMA.
Very high air temperatures, like those observed in recent days, both maximum and minimum, have a known negative impact on health, which includes dehydration and/or exacerbation of chronic diseases, among other factors, especially among the elderly.
Portugal Hot Weather and Its Impact on Health
It acknowledges that a period of excess deaths are expected in older age groups despite all efforts to mitigate the impact of heat on health. The health authority emphasizes the value of the whole population, but particularly of the most vulnerable groups, including those with long-term illnesses, the elderly, children, pregnant women, those who work outside, the homeless, and those who are socially isolated.
Portugal hot weather has been a main issue in summers . There are 284 deaths registered during the ongoing heat wave, the country’s Directorate-General for Health (DGS) has said. According to preliminary data from the DGS, more than 70% of the deaths, which occurred between 28 June and early July, were among people aged over 85. There is a potential risk that this number could climb further, with high-temperature risks predicted in the Alentejo region.
The Portuguese Institute for Sea and Atmosphere has indicated that the current heat wave is expected to last until at least mid-week.
How to Battle Portugal Hot Weather
As temperatures rise and heat waves occur more frequently, staying cool is more important for safety than just comfort. Extreme heat can present major health hazards, particularly for vulnerable groups, whether you’re trying to keep your home comfortable or just enjoying the sunshine. With useful, life-saving advice on how to keep yourself and your loved ones safe during hot weather, we’re here to help you battle the heat.
It’s best to avoid going out during the hottest hours of the day, but sometimes that can’t be avoided. When out in direct sunlight, remember: Wear (and regularly reapply) sunscreen. Cover your head with a hat. Take regular breaks indoors or in a shady area to avoid getting heat exhaustion or heatstroke. Wearing light colors, loose-fitting clothing will also help you to stay cool.
Suggestions and Tips to Avoid Dehydration in Portugal Hot Weather
The largest organ in the body, the skin, allows heat to escape. Therefore, it is better to cool down as much skin as possible. In extremely hot temperatures, there are several ways to cool your skin: Keeping a t-shirt damp and soaked can work wonders.
Take a cool shower; you should cool down gradually to avoid freezing. By submerging your hands and feet in cold water, you can rapidly cool off. You will cool off faster because the wrists and ankles contain many pulse points, which are blood vessels near the skin.
FAQS
What is the highest temperature record in Portugal?
The record breaking temperature was 46 degrees in June 2025.
Which month has the hottest weather in Portugal?
The hottest months are June, July and August.
Does Portugal’s hot weather cause deaths?
Yes , there are many deaths registered due to the extream hot weather.
How long are the hot summers in Portugal?
The hot summers often start in June and end in August.