Geomagnetic storms 12 December 2025

On Friday, December 12, 2025, a kIndex of 4 indicates a moderate level of geomagnetic activity. While this level is generally regarded as quiet, it is notable enough to raise awareness among those sensitive to geomagnetic fluctuations. The kIndex ranges from 0 to 9, with values below 5 typically associated with minimal disruptions to everyday life. For weather-sensitive individuals, geomagnetic activity can influence various physiological responses. Some people may experience headaches, fatigue, or mood swings during periods of increased magnetic activity, largely due to changes in the Earth's magnetic field that can affect biological processes. Additionally, these individuals might notice fluctuations in sleep patterns or heightened emotional sensitivity. While a kIndex of 4 does not pose significant risks to the general population, it serves as a reminder for weather-sensitive individuals to stay informed and consider potential impacts on their well-being. Awareness can help in managing symptoms and enhancing overall comfort during these times of geomagnetic changes.