Faro, in Portugal’s southern Algarve region, is the driest major Portuguese city, averaging only around 480 mm (about 19 inches) of rain a year, with a long, reliably dry summer that draws tourists to the region’s beaches. Nearly all the rain falls between October and March, sometimes arriving as intense, short-lived storms after long dry stretches, which can cause localized flash flooding on streets and low-lying tourist areas not built for heavy runoff. Because the region’s economy leans so heavily on outdoor tourism, sudden shifts from clear skies to a rain band matter more here than the modest annual total might suggest. Radar is a practical way to check conditions before heading to the coast. Portugal’s IPMA operates the national radar network.
Learn more: How Does Rain Radar Work? · Open the full Rain Map