Solar Flares in September, 2025
17 flares ↑ MAX: M6.5 ↓ MIN: B5.6
17 flares ↑ MAX: M6.5 ↓ MIN: B5.6
In September 2025, 17 solar flares were recorded; the strongest was M6.5 on September 28, 2025. The longest run of consecutive active days was 5 (26 Sep–30 Sep).
Most powerful Solar Flares in September 2025
| Date | Class | Level | Duration |
|---|---|---|---|
| September 28, 2025 | M6.5 | Moderate level | 7 min |
| September 29, 2025 | M3.7 | Moderate level | 7 min |
| September 30, 2025 | M2.7 | Moderate level | 6 min |
| September 30, 2025 | M1.8 | Moderate level | 31 min |
| September 26, 2025 | M1.7 | Moderate level | 6 min |
| September 24, 2025 | M1.6 | Moderate level | 11 min |
| September 19, 2025 | M1.5 | Moderate level | 16 min |
| September 5, 2025 | M1.4 | Moderate level | 2 min |
| September 30, 2025 | M1.3 | Moderate level | — |
| September 6, 2025 | M1.2 | Moderate level | — |
| September 23, 2025 | M1.1 | Moderate level | — |
| September 27, 2025 | M1.1 | Moderate level | 24 min |
| September 27, 2025 | M1.1 | Moderate level | — |
| September 29, 2025 | M1.1 | Moderate level | — |
| September 29, 2025 | M1.1 | Moderate level | 1 min |
| September 4, 2025 | M1 | Moderate level | — |
| September 24, 2025 | M1 | Moderate level | — |
Solar Flares: Full Archive
| Year | Months |
|---|---|
| 2026 | Jan Feb Mar Apr May Jun Jul |
| 2025 | Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec |
| 2024 | Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec |
| 2023 | Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec |
| 2022 | Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec |
| 2021 | Apr May Jul Aug Sep Oct Nov Dec |
| 2020 | May Nov |
| 2017 | Apr Jul Aug Sep Oct |
| 2016 | Jan Feb Apr Jul Aug Nov |
| 2015 | Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec |
| 2014 | Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec |
| 2013 | Jan Feb Mar Apr May Jun Jul Aug Oct Nov Dec |
| 2012 | Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov |
| 2011 | Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec |
| 2010 | Jan Feb May Aug Oct Nov |
| 2008 | Mar |
| 2007 | Jun |
| 2006 | Apr Jul Dec |
| 2005 | Jan Feb May Jun Jul Aug Sep Nov Dec |
| 2004 | Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec |
| 2003 | Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec |
| 2002 | Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec |
| 2001 | Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec |
| 2000 | Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec |