Geomagnetic storms 21 October 2025

On Tuesday, October 21, 2025, the geomagnetic activity level, indicated by the kIndex, is recorded at 3, categorized as a "quiet" level of geomagnetic activity. This level suggests that the Earth's magnetic field is relatively stable, exhibiting minimal fluctuations that could impact satellite systems and communication technologies. For weather-sensitive individuals, such as those who are affected by changes in atmospheric pressure or electromagnetic fields, a kIndex of 3 typically poses little concern. Symptoms related to geomagnetic activity—such as headaches, mood fluctuations, or disrupted sleep—are less likely at this quiet level. However, those particularly attuned to environmental changes might still experience mild sensitivities, but any impacts would generally be minimal. This stability can also create a more consistent experience for weather-sensitive individuals, contributing to an overall sense of well-being as the geomagnetic field remains undisturbed. In summary, a kIndex of 3 signifies a tranquil geomagnetic environment, benefiting most people, especially those with sensitivities to such atmospheric conditions.