The Camino da Geira e dos Arrieiros spans across Portugal and Spain, primarily traversing the region of Braga in Portugal and ending in Santiago de Compostela in Spain.
Braga Region, Portugal: In the Braga region, which includes Braga, Caldelas, and Campo do Gerês, the weather in May exhibits a range of conditions. Temperatures are generally mild, with average highs hovering around 18-22°C and lows between 8-10°C. Precipitation varies but is generally moderate, around 4-6 mm/day. Sunny days are common, although there's a fair chance of partly cloudy skies and intermittent rain showers.
Galicia, Spain: When crossing into Spain, starting from Lobios to Santiago de Compostela, you enter the Galicia region. Here, you will experience slightly varying but generally similar weather conditions. Expect average highs around 18-21°C and lows around 9-11°C. Precipitation tends to be higher, particularly moving towards Santiago, with average values ranging from 3 to nearly 7 mm/day. The weather shifts from quite a few sunny days to more frequent overcast conditions and occasional heavier rain showers as you approach Santiago de Compostela. The likelihood of encountering rain increases notably, but there are still ample opportunities for clear skies.
Overall, prepare for a mix of sunny and cloudy days with variable rain, becoming more frequent as you progress through Galicia towards Santiago.
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