Nelas, in Viseu, Portugal, is home to roughly 4,200 people in the Europe/Lisbon time zone at 40.5°N latitude.
Recent weather here gives a sense of typical conditions: in 2025, Nelas recorded a mean annual temperature of 58°F, ranging from 30°F lows in December to 102°F highs in August, with about 58 inches of precipitation across the year.