new heat wave in sight in Portugal?
The last week of July has been summer, mostly due to normal temperaturesa fairly stable and, in general, sunny state of the weather, and by the constant regime of moderate to strong wind blowing from the North/Northwest (the famous summer north winds that are present during 80% of the summer in mainland Portugal).
However, soon, predictably from the last weekend of july (30th and 31st, Saturday and Sunday, respectively) let’s watch a new meteoric rise of thermometerswith the intense heat returning to the mainland and probably leaving several districts with weather warnings for significant risk of extreme maximum temperature. Furthermore, it is very likely that tropical nights in vast areas of our geography.
Possible heat wave? Yes, but not in all Portuguese regions
In the first place, it is convenient because we are going to witness, again explaining, a duration increase in national territory and that will, trying to make the thermometers go off to maximums near or above 40°C in various regions. It seems, ones North and Center will be the main regions due to high temperatures.
the hot weather will, from Saturday, July 30th, “embrace” mainland Portugal thanks to the following meteorological elements: a depression area located in the southwest of the Iberian Peninsulawill, together with the Azores anticyclone – which crests into the Bay of Biscay – to stimulate a East/Southeast flow (warm, dry winds)precipitating the return from the torrid heat between, predictably, the 30th of July and the 4th of August. .
This Friday, there will already be a rise with some impact on the temperature on a national scale., with some district capitals in the Central and South interior registering the maximum above 35 ºC. But it will be from Saturday, July 30th, the heat will increase so that you will travel.
With the wind turning to the east quadrant in the early hours of next Saturday in the territories north of the Tagus river, there will be a sharp rise in maximum temperatures on the coast between the districts of Viana do Castelo and Lisbon (between 5ºC to 8ºC), during the weekend. The sky will be clear or slightly cloudy.
Tropical nights will predictably occur in 12 of the 18 districts of mainland Portugal. This situation occurs when the minimum temperature reaches or exceeds 20 °C throughout the night.
For Sunday, July 31st, the last day of the month, a new intensification of heat and almost clear skies are expected. In the most torrid period of this journey, provide the maximum air temperature between 40ºC and 42ºC for the Douro and Tejo valleys, inland Alentejo and in some scattered places in the interior of the Center.
In the remaining regions of mainland Portugal, the predicted maximum varies between 5 °C and 40 °C. How exceptional to these high values Western Algarve and Alentejo Coastwhere the highest maximums will be slightly above 25°C.
It will also be this weekend that tropical nights will reappear in force, when the minimum is equal to or greater than 20 °C at night. This situation must happen in all “two thirds” of the country. as exceptional as capitals of the district of Castelo, Aveiro, Guarda, Coimbra, Leiria and Setúbal.
This panorama of Tropical will start on Saturday 30th and should generally run until the nights of August 2ndwith special emphasis on the entire territorial range of the interior and leeward Algarve.
Next week: mild Atlantic coast contrasts with very hot Mediterranean-style interior
From Monday, August 1st, the temperature will drop in the western western rangewhereby, heat wave criterion does not apply to this portion of the territory of mainland Portugal. A thermal drop is expected, in the order of 3 ºC to 5 ºC, on the coast of the North and Center regions.
However, the same cannot be said for the interior of the North, the Center and Alentejo, where, yes, a heat wave is foreseengiven that, according to our reliable weather models, the temperature must remain abnormally high for the time of year (despite being summer), at least until the end of next week.
The maximum allowed may reach or, again, the maximum of the maximums0 ºC. On this side, update yourself daily with us, consulting our weather maps, models of numerical prediction and weather forecasts.