2026 is shaping up to be one of the "most turbulent" years in terms of magnetic storms. Scientists from the "Space Research Institute" and the "Institute of Solar-Terrestrial Physics" of the RAS, as well as other specialized centers, warn that geomagnetic activity is already exceeding the record levels of 2025 and that, combined with strong solar activity, this means more frequent and intense geomagnetic disturbances. Statistics show that the number of days with magnetic storms in 2025 jumped from 40 to 73, and the trend in 2026 points toward new records.
Key dates in July 2026 according to scientific forecasts
The forecasts for magnetic storms in July 2026 are based on data from the Space Weather Prediction Center at "NOAA" (USA), as well as on specialized models published by scientific portals and observation networks. In Bulgaria, the information is also summarized by specialized websites that track the "Kp index" – a global indicator of geomagnetic activity.
According to the current forecast, the following more significant events are expected at the beginning of the period June 29 – July 5, 2026:
- On June 29, the Kp index reaches a value of about 4.7 – increased geomagnetic activity, but below the threshold for a classic storm. This level usually does not cause serious problems, but it can be felt by more sensitive people.
- On June 30, a weak geomagnetic storm of class "G1" is possible, related to a coronal mass ejection (CME) that left the Sun on June 26. The NOAA forecast for the early hours of June 30 shows a Kp up to 5.00, which is the threshold for a weak storm. In the 00:00–03:00 UTC interval, a Kp of about 4.67 is expected, and between 03:00 and 06:00 UTC – a Kp of 5.00. After that, the activity gradually weakens.
- On July 3, 2026, forecast data indicate a new peak in activity – a Kp index value of about 5, which corresponds to a stronger magnetic storm. This day is assessed as potentially problematic for weather-sensitive people and for those with cardiovascular diseases.
In some extended forecasts for the entire month of July, based on coronal holes and cyclic solar flares, probable periods around the middle and end of the month are indicated, during which additional storms are possible. However, scientists emphasize that long-term forecasts have an accuracy of about 60–70% and are subject to corrections, so it is important to monitor current data published daily by centers like NOAA/SWPC.
Why magnetic storms are becoming more frequent and stronger
Although solar activity passed its peak around 2024, scientists from the Laboratory of Solar Astronomy at the IKI RAS explain that the number of magnetic storms is growing paradoxically due to the increase in "coronal holes" on the Sun – areas with open magnetic lines from which streams of fast solar wind escape. It is these streams that are often the source of prolonged geomagnetic disturbances.
Statistics for 2025 show that the number of days with magnetic storms was the highest in the last 10 years, and the total number of "geomagnetically disturbed" days was the highest in the last two decades. The beginning of 2026 is already confirming the trend: just in the first two weeks, three days with storms were recorded, which is 23% of the period, compared to 69 days (18%) for all of 2025.
In addition, experts like Assoc. Prof. "Petya Trifonova" from the BAS recall that 2025–2026 are years of maximum solar activity in the 11-year cycle, which naturally increases the number of flares and the associated geomagnetic effects. "A magnetic storm causes physiological indicators to be unstable. The magnetic field changes, and our organs experience stress," she explains.
How magnetic storms affect people
Magnetic storms do not pose a direct, acute health danger to the majority of people, but increased geomagnetic activity can affect one's well-being. Weather-sensitive people often report "headaches, fatigue, sleep disturbances, irritability" during periods of increased solar activity. For people with cardiovascular diseases, high blood pressure, or neurological problems, such days can be more difficult to tolerate.
On a technical level, even weak "G1" class storms can cause minor fluctuations in power grids, limited effects on the operation of some satellites, and the appearance of auroras at higher latitudes. In stronger storms (Kp ≥ 6–7, class G2–G3), the risk of more serious disturbances in radio communications, navigation systems, and energy infrastructure increases.
Precautionary measures during days with magnetic storms
Doctors and space weather specialists recommend several basic measures for people who want to reduce discomfort during magnetic storms.
- Carefully monitor your own health, especially if you have "cardiovascular diseases" or chronic problems. On such days, avoid overexertion, strong stress, and sudden changes in routine.
- Ensure enough sleep and rest. Some people feel fatigue and sleep disturbances more easily during increased geomagnetic activity – going to bed and waking up at the same time and avoiding heavy food late in the evening can help.
- Limit the use of stimulants – strong coffee, energy drinks, alcohol – especially if you feel palpitations or tension.
- Drink enough water to maintain normal hydration, and try to eat a balanced diet without sudden changes in your eating habits.
- People who work with sensitive equipment, navigation systems, or in the power industry should follow specialized warnings from centers like NOAA/SWPC and national services – during strong storms, additional monitoring and protection of systems are recommended.
How to track forecasts and plan
Since long-term forecasts for magnetic storms have limited accuracy, it is most practical to follow current daily bulletins. NOAA, as well as European centers, publish 3-day forecasts for geomagnetic activity, including expected values of the "Kp index". In Bulgaria, various portals adapt this information into an accessible form – charts, daily warnings, and explanations.
For July 2026, the days around June 30 and July 3 deserve special attention, when a "weak to moderate geomagnetic storm" and possible class R1–R2 radio disturbances are expected. On the remaining days of the month, weaker but more frequent periods of increased activity are possible, related to coronal holes and episodic flares.
In conclusion, magnetic storms in July 2026 are part of a broader trend – years of intense solar and geomagnetic activity. For most people, they will be a background that feels like mild discomfort or fatigue, but for those who are weather-sensitive and for critical infrastructure, such days require more attention. If you follow the forecasts and take care of your health, even stormy days can be met with the necessary preparation.