Geomagnetic storms 9 December 2025

On December 9, 2025, with a kIndex of 1, geomagnetic activity is classified as quiet, indicating minimal disturbance in the Earth's magnetic field. This low level of activity is associated with stable solar conditions, characterized by a lack of significant solar flares or coronal mass ejections from the Sun, resulting in calm atmospheric conditions. For weather-sensitive individuals, such as those with migraines, joint pain, or certain cardiovascular conditions, a kIndex of 1 means reduced likelihood of geomagnetic storms that can sometimes exacerbate symptoms. The stable magnetic environment can contribute to a sense of well-being, potentially allowing for better mood stability and physical comfort. While individuals often report increased sensitivity during geomagnetic storms, a quiet kIndex facilitates balanced physiological conditions, likely promoting improved health and comfort for those affected by weather variations. Overall, a kIndex of 1 represents a benign day in terms of geomagnetic influences, allowing weather-dependent individuals to navigate their daily activities with less concern for magnetic interference.