The Portuguese Institute for Sea and Atmosphere (Instituto Português do Mar e da Atmosfera or IPMA) has issued a warning for a prolonged period of rain, thunderstorms, and falling temperatures across mainland Portugal. This shift follows an unseasonably warm Easter period and is caused by a depression moving between the Madeira archipelago and the mainland. Temperatures are expected to drop, with minimums ranging between eight and 12 degrees Celsius.
IPMA forecasts rain and temperature drop across mainland
Sunday, 5 April 2026AI summary

Context & Explainers

IPMA is the Portuguese Institute of the Sea and Atmosphere (Instituto Português do Mar e da Atmosfera), the national agency for weather, marine forecasts and climate monitoring. Residents should watch its forecasts and warnings during storms, heatwaves or cold snaps because IPMA issues official advisories used by services, transport operators and local authorities.
Sources (5)
- Rain, falling temperatures and dust: after the Easter sun and heat, the weather is set to changePúblico · 8:34pm, 5 Apr 2026
- IPMA forecasts rain, temperature drop, and dustObservador · 9:05pm, 5 Apr 2026
- IPMA forecasts rain and a drop in temperature in mainland PortugalCorreio da Manhã · 8:40pm, 5 Apr 2026
- Is it time to change your wardrobe? Not yet: find out what to expect from the weather in the coming weeksExpresso · 7:05pm, 5 Apr 2026
- Return of rain and even thunderstorms: a "temperature rollercoaster" is on the wayCNN Portugal · 4:53pm, 5 Apr 2026




