Monitoring of near-surface soil temperature in seasonaly snow-covered, mountain ecosystems located in the Lautaret-Galibier area of the French Alps. Data are part of a long-term monitoring programs examining the impact of climate change on snow cover dynamics, microclimate, species distribution and ecosystem functioning. Data include a GPS position, a date and time in UTC and a near-surface soil temperature (in °C) measured at 5 cm belowground using stand-alone temperature data logger.