6 days ago · Use the buttons above each plot to return to the default zoom showing the current cycle or to show the entire available data set. There is also an option to toggle the solar cycle numbering on/off.

The graph below shows you the number of C, M and X-class solar flares that were produced during past month together with the sunspot number of each day. This gives you an idea of the solar activity …

3 days ago · Each month the solar prediction is updated using historical and the latest month’s observed solar indices to provide estimates for the balance of the current solar cycle and the next.

Jun 5, 2025 · A solar cycle is a roughly 11-year periodic change in the Sun characterized by variations in the number and intensity of sunspots, as well as a flipping of its magnetic poles. The table shows the …

3 days ago · Press the down arrow to display the list of solar cycles. Click on the required solar cycle, then press the Display button.

Numbers in brackets for cycle 25 indicate the minimum possible value for that month, assuming there are no more sunspots between now (Dec 1, 2025) and six months after the end of the month in …

Zoom: Sunspot Number Default All Numbering On/Off Solar Cycle Sunspot Number Progression Updated: 2025-12-02 Monthly Values Smoothed Monthly Values 75th Percentile Predicted Range …

6 days ago · In 2019 an international panel was convened to predict the strength and timing of Solar Cycle 25. The experimental product presented here provides an update to the 2019 Panel prediction, …

Jun 27, 2025 · An interactive graph displays sunspot data all the way back to 1750, showing the correlation between the number of sunspots and the solar cycle. Part of NOAA’s Space Weather …

We plot here, daily updated, the predictions for the sunspot numbers for solar cycle 25, by the NOAA/NASA/ISES panel (from 2019) and from a prediction based on the timing of the so-called …