Solar cycle 25
| Solar cycle 25 | |
|---|---|
ISES Solar Cycle 25 sunspot number progression up to September 2025 | |
| Sunspot data | |
| Start date | December 2019 |
| End date | about 2030 |
| Max count | 216 (not smoothed) 160.8 (smoothed) |
| Max count month | August 2024 (not smoothed) October 2024 (smoothed) |
| Min count | 1.8 |
| Cycle chronology | |
| Previous cycle | Solar cycle 24 (2008–2019) |
Solar cycle 25 is the current solar cycle, the 25th since 1755, when extensive recording of solar sunspot activity began. It began in December 2019 with a minimum smoothed sunspot number of 1.8. It is expected to continue until about 2030. While it was initially predicted by most scientists that cycle 25 would be relatively weak, solar activity has been much stronger than the predictions.