Solar Storm 2025 Predictions. Wednesday, july 17, 2025 21:09 utc active region 13664 was responsible for the largest geomagnetic storm of solar cycle 25, read the story from an operational perspective The height of solar activity during a given solar cycle is known as solar maximum, and current estimates predict it will occur between late 2025 and early 2026.
Solar flares, eruptions on the sun’s surface and sunspots are expected to multiply and intensify throughout this year, as our yellow star enters its most active period in two. Overnight last night brought an explosion of geomagnetic storms and auroras.