Geomagnetic storms 20 October 2025

On Monday, October 20, 2025, a kIndex of 3 indicates a predominantly quiet level of geomagnetic activity. The kIndex ranges from 0 to 9, with values of 3 signaling minor disturbances. At this level, geomagnetic fluctuations are minimal, meaning that the Earth's magnetic field is stable, which typically results in limited impacts on various systems. For weather-sensitive individuals, these low levels of geomagnetic activity are unlikely to cause significant issues. People who may experience sensitivity to geomagnetic fluctuations—such as those with certain medical conditions or heightened sensitivities—are generally less affected when the kIndex is at this level. Consequently, disruptions to electrical grids, satellite communications, and navigational systems are minimal, and there is no heightened risk of auroras or other geomagnetic phenomena. Overall, a kIndex of 3 is considered a serene period in terms of geomagnetic impact, allowing individuals to maintain their daily activities without the concerns often associated with higher levels of geomagnetic activity.