As the IPMA forecasts highs near 42°C in Portugal's interior, the government says the law already protects workers — though it sets no temperature at which work stops. The ACT has notified 200,000 employers of their duty to provide water, ventilation and breaks.
After a brief cool spell, IPMA expects a new heatwave from Thursday, with highs near 40°C in Lisbon and up to 42°C in the interior into early July, warm tropical nights and a sharp rise in wildfire risk across the country.
The Instituto Português do Mar e da Atmosfera (IPMA, the Portuguese meteorological authority) lifted an aviso amarelo (yellow weather warning) for chuva e trovoada (rain and thunderstorm) across twelve mainland districts on Sunday 14 June 2026,...
The IPMA stepped up to a red heat warning for Sunday across seven mainland districts; the DECIR Charlie posture mobilises 13,335 operationals; the 2003 and 2022 excess-mortality tape sets the comparison benchmarks.
IPMA upgrades seven mainland districts from orange to red for Sunday 14 June — Lisboa, Setúbal, Santarém, Évora, Beja, Castelo Branco and Portalegre face 40°C+ as Saturday already prints 42.7°C in Alvega and 42.6°C in Amareleja, with 80-plus municipalities at maximum rural-fire risk.
IPMA yellow alert covers 17 of 18 continental districts from 09:00 Thursday 11 June through 18:00 Friday 12 June. Maxima reach 35-40°C on Friday with overnight minima near 20°C, and the fire-weather index lifts across multiple regions.
IPMA lifts the ultraviolet-radiation index to very high across every Portuguese district through Friday 13 June, with Faro maxing at 34°C and twelve concelhos in Santarém, Portalegre, Castelo Branco, Évora and Faro on top-tier wildfire alert.
