Porto Metropolitan Urban Weather Observations — Six-Week Extended Sample — Part 1 of 2

Note: This dataset has been split into 2 parts. This is part 1 of 2. Other parts: • Part 2: https://doi.org/10.5281/zenodo.20763672 This dataset contains six weeks of high-resolution meteorological observations from five weather stations distributed across the Porto metropolitan area, including the urban core, suburban municipalities, and coastal sites. Measurements were recorded every 10 minutes in CSV format and include air temperature (°C), relative humidity (%), and atmospheric pressure (hPa). A companion daily summary table provides per-station daily minimum, maximum, and mean temperature, mean humidity, mean pressure, and the number of readings per day. The data cover spring 2026 and support urban climate and microclimate analysis in northwestern Portugal.