Accurate calendar of Magnetic Storms in May 2026 by day: schedule of dangerous days

Short answer: Several waves of geomagnetic activity are expected in May 2026. The most powerful red-level magnetic storm (up to 6 points) will cover the Earth on May 13 and 23. During this period, deterioration of well-being, headaches, and exacerbation of chronic diseases are possible. For a detailed calendar of safe and dangerous days, see the table prepared by our editorial team of Ukrainian Information based on data from NOAA satellite systems and meteorological laboratories below.

For those who are here for the first time and are wondering why this is important to you and why it matters? Everything is explained simply by the influence of solar activity on the Earth’s magnetic field directly affects the health of weather-dependent people, this is proven by science. So that you can prepare in advance and minimize the risks of worsening your health, we have compiled a detailed schedule of magnetic storms for May 2026.

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Magnetic storm calendar for May 2026

The intensity of geomagnetic oscillations is measured by the so-called K-index, where an index from 1 to 3 means a calm magnetic field, 4 means a disturbed one (yellow level), and 5 and above means a strong magnetic storm (red level).

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Important dates when the magnetic storm in May is at its strongest

Note: The forecast may be adjusted depending on new solar flares. The page is updated and supplemented in real time.

Which days will be the most dangerous in May?

The main impact of solar plasma in May falls in the middle of the month. The period from May 13 to 16 will be characterized by increased danger to the cardiovascular system.

During storms of magnitude 5 and above (red level), even completely healthy people who do not usually suffer from weather dependence can experience the effects. The following symptoms are possible:

• sharp jumps in blood pressure;
• migraine, dizziness, tinnitus;
• insomnia at night and increased drowsiness during the day;
• joint and muscle pain;
• decreased concentration and causeless irritability.

How do magnetic storms affect technology?

In addition to affecting the human body, strong geomagnetic fluctuations can cause malfunctions in the operation of equipment. On days with a K-index of 6 and above, disruptions in the operation of satellite communications, GPS navigation systems, and in some cases, minor voltage fluctuations in electrical networks are possible.

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How to protect your health: advice from doctors during magnetic storms

To reduce the negative impact of space weather on the body, doctors recommend following basic prevention rules a few days before and during a magnetic storm:

1. Adjust your diet. Avoid heavy, fatty, spicy foods, as well as fast food. Increase the amount of fresh vegetables, fruits, and herbs.
2. Drink more water. Normalize your water balance (at least 1.5-2 liters of clean water per day). Give up coffee, energy drinks and alcohol in favor of herbal teas (with mint, lemon balm or chamomile).
3. Adjust your physical activity. Replace exhausting workouts in the gym with light exercises, stretching, or calm walks in the fresh air.
4. Monitor your blood pressure. People with chronic heart disease and hypertension should have a blood pressure monitor and medications prescribed by a doctor for emergency blood pressure reduction on hand.
5. Follow a sleep schedule. Try to go to bed at the same time, ensuring your body has at least 7-8 hours of good rest. Ventilate the room before going to bed.

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