Mertola, in Beja, Portugal, is home to roughly 7,300 people in the Europe/Lisbon time zone at 37.6°N latitude.
Recent weather here gives a sense of typical conditions: in 2025, Mertola recorded a mean annual temperature of 65°F, ranging from 30°F lows in January to 110°F highs in June, with about 25 inches of precipitation across the year.