Geomagnetic storms today

On Sunday, September 21, 2025, a kIndex of 3 indicates a quiet level of geomagnetic activity. This measurement, which ranges from 0 (very quiet) to 9 (extremely disturbed), suggests minimal fluctuations in the Earth's magnetic field. During this level of activity, disturbances such as solar flares and coronal mass ejections are less likely to significantly impact the atmosphere. For weather-sensitive individuals, including those with certain health conditions, a kIndex of 3 typically means a stable environment devoid of intense geomagnetic storms that can aggravate symptoms. Many people report feeling more at ease and experiencing fewer headaches, mood swings, or sleep disturbances associated with higher geomagnetic activity. Overall, a kIndex of 3 presents a favorable scenario for those sensitive to weather changes, allowing for normal daily activities without the stress or discomfort that can accompany elevated geomagnetic conditions.