This dataset contains information about meteorological conditions, soil parameters and water table depth at Whim Bog, an ombrotrophic heather-dominated bog near Edinburgh, Scotland. Meteorological measurements were recorded at a height of 2 m above the bog on a meteorological mast which is a part of a peatland nitrogen pollution experiment established in 2002. The measurements are recorded using a wide range of automatic sensors recording continuous meteorological data reported in this dataset at 15-minute intervals. This dataset relates to measurements taken from 2003 till 2023. This long-term dataset provides a comprehensive outlook of meteorological conditions in southern Scotland over the past two decades and can help identify changing climatic trends and anomalies. The work was supported by UKCEH National Capability for UK Challenges Programme NE/Y006208/1. Full details about this dataset can be found at https://doi.org/10.5285/ba9ecad2-1740-41e6-8f73-b308340d49fe