Portugal set for 43C in early July heatwave
Euronews
Published Jun 29, 2026 Reviewed Jun 30, 2026 ✓ Reviewed by citations.press editors
Temperatures are expected to reach as high as 43 °C in some parts of Portugal.
43 °C · maximum temperature
Portuguese Institute for Sea and Atmosphere, IPMA
IPMA issued yellow alerts for five districts (Guarda, Castelo Branco, Portalegre, Évora, Beja) from Monday.
5 · districts receiving yellow alerts
Portuguese Institute for Sea and Atmosphere, IPMA
The average temperature across mainland Portugal will be 3 °C‑7 °C above normal, with central regions and the Alentejo seeing increases of 5 °C‑7 °C.
at least 3 °C · temperature increase above normal (nationwide)at most 7 °C · temperature increase above normal (nationwide)at least 5 °C · temperature increase above normal (central regions/Alentejo)at most 7 °C · temperature increase above normal (central regions/Alentejo)
Portuguese Institute for Sea and Atmosphere, IPMA
Eight districts are expected to reach or exceed 40 °C during the heatwave.
8 · districts reaching ≥40 °Cat least 40 °C · temperature reached
Portuguese Institute for Sea and Atmosphere, IPMA
Daytime highs in inland Alentejo will stay above 40 °C from 1 July to at least 7 July.
more than 40 °C · daytime highs
Portuguese Institute for Sea and Atmosphere, IPMA
Coastal areas are expected to see highs between 35 °C and 38 °C from Wednesday.
at least 35 °C · coastal high temperatureat most 38 °C · coastal high temperature
Portuguese Institute for Sea and Atmosphere, IPMA
The Portuguese Institute for Sea and Atmosphere (IPMA) has issued yellow alerts for five districts (Guarda, Castelo Branco, Portalegre, Évora, and Beja) starting this Monday.
5 districts · yellow alerts
IPMA, Portuguese Institute for Sea and Atmosphere
The Portuguese Institute for Sea and Atmosphere (IPMA) will extend these alerts to Bragança and Vila Real on Tuesday.
2 districts · alerts extended
IPMA, Portuguese Institute for Sea and Atmosphere
The 40 °C temperature threshold will be exceeded from Wednesday in the Alentejo districts.
40 °C · temperature threshold
, meteorologists
Minimum temperatures at the start of the week will range from 12 °C to 17 °C.
at least 12 °C · minimum temperatureat most 17 °C · minimum temperature
Portuguese Institute for Sea and Atmosphere, IPMA
Minimum temperatures will rise above 20 °C in inland areas from Tuesday and in other regions from Thursday.
more than 20 °C · minimum temperature (inland areas)more than 20 °C · minimum temperature (other regions)
Portuguese Institute for Sea and Atmosphere, IPMA
Yellow alerts will be extended to Bragança and Vila Real on Tuesday and to the remaining mainland districts from Wednesday.
2 · additional districts receiving yellow alertsabout 0 · remaining mainland districts receiving yellow alerts
Portuguese Institute for Sea and Atmosphere, IPMA
The start of July will bring a prolonged heatwave to mainland Portugal, with tropical nights and temperatures soaring to 43°C in some regions of the country.
According to the Portuguese Institute for Sea and Atmosphere (IPMA), it is being driven by an anticyclone located to the north/northwest of the Azores archipelago, dragging in a mass of very hot, dry air.
The average temperature is expected to run 3°C to 7°C above normal across mainland Portugal, the IPMA says, highlighting increases of 5°C to 7°C in central regions and the Alentejo.
The 40°C threshold will be exceeded from Wednesday in the Alentejo districts, with the high temperatures then spreading to parts of the remaining regions towards the end of the week, meteorologists warn. In inland Alentejo, daytime highs will remain above 40°C from 1 to at least 7 July.
Over this period, eight districts are expected to reach or exceed 40°C: Braga, Coimbra, Castelo Branco, Santarém, Lisbon, Portalegre, Évora and Beja.
Unlike the heat episode at the end of May, the coast is also expected to be hit by the high temperatures, especially from Wednesday, with highs between 35°C and 38°C.
"Sea breezes along the coast in the afternoon will be weak, leading to unusually high temperatures in places that rarely experience them," the IPMA notes.
The situation will be compounded by tropical nights. Minimum temperatures will range between 12°C and 17°C at the beginning of the week, rising above 20°C in inland areas from Tuesday and in other regions from Thursday.
In view of what it describes as "a long spell of hot, dry weather", the IPMA has issued yellow alerts for the districts of Guarda, Castelo Branco, Portalegre, Évora and Beja from this Monday.
On Tuesday these alerts will be extended to Bragança and Vila Real, and will apply to the remaining mainland districts from Wednesday.
This weather pattern is, however, expected to be revised.
Because of the "long duration of this hot spell", the IPMA warns, "it is highly likely that the alert level will be raised in several districts in updates over the coming days".
