Thirteen mainland districts have yellow weather warnings today
Heavy showers and thunderstorms remain possible across much of mainland Portugal on Monday. A yellow warning means disruption is possible, but the timing and intensity can vary sharply from one place to another.
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Archived 31 August 2026Check the live warning for the district and hour you will travel. Sunday’s rain already caused local damage in Greater Lisbon, showing why a national forecast needs a local decision.
- IPMA has placed 13 mainland districts under yellow warnings for rain and thunderstorms.
- A yellow thunderstorm warning can include locally heavy rain, hail and strong gusts.
- Warnings do not mean every address will see severe weather.
- Flooded roads, exposed coastal areas and loose outdoor objects need extra care.
The unsettled spell continues
Monday starts with warnings across a broad part of mainland Portugal as showers and thunderstorms move through the country. The most important detail is not the national count but the warning window for the district where you are staying or travelling.
Thunderstorms are local by nature. One municipality can have intense rain and gusty wind while a nearby area remains comparatively quiet, so a dry view from the window is not enough to judge a long journey.
What a yellow warning means
IPMA’s yellow thunderstorm criteria cover conditions that can produce local downpours, hail and gusts. It signals a level of weather risk that deserves attention, not a prediction that every possible hazard will occur in every warned district.
Short bursts of rain can overwhelm drains and collect on low roads. Slow down, leave more stopping distance and turn back if water covers a road and its depth is unclear.
Make the plan from live information
Check IPMA immediately before departure, then look for local Civil Protection or municipal instructions if your route crosses a place already affected by flooding or debris. Secure light objects on balconies and terraces before the warning period begins.
Conditions can improve during the day, and warnings can be changed or extended. Treat the Hub forecast as an explanation of the pattern and the current official warning as the operational check for the journey.
What you can do now.
- 01
Check the current district warning and its end time.
- 02
Secure loose objects outside.
- 03
Avoid flooded roads and exposed coastal routes.
- 04
Recheck the route immediately before leaving.
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