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.20626439 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 during spring 2026 and include air temperature (°C), relative humidity (%), and atmospheric pressure (hPa). The collection also includes daily summary statistics with minimum, maximum, and mean temperature, mean humidity, mean pressure, and the number of readings per day. Station metadata and a field dictionary are provided to support interpretation of the time series. Relative humidity values range from 0 to 100%, and the data are formatted as CSV and JSON files.