Solar Flares in September, 2023
33 flares ↑ MAX: M8.7 ↓ MIN: B6.2
33 flares ↑ MAX: M8.7 ↓ MIN: B6.2
In September 2023, 33 solar flares were recorded; the strongest was M8.7 on September 21, 2023. The longest run of consecutive active days was 6 (19 Sep–24 Sep).
Most powerful Solar Flares in September 2023
| Date | Class | Level | Duration |
|---|---|---|---|
| September 21, 2023 | M8.7 | Moderate level | 16 min |
| September 20, 2023 | M8.2 | Moderate level | 6 min |
| September 3, 2023 | M6 | Moderate level | 41 min |
| September 24, 2023 | M4.4 | Moderate level | 48 min |
| September 19, 2023 | M4.1 | Moderate level | 11 min |
| September 2, 2023 | M3.4 | Moderate level | 56 min |
| September 16, 2023 | M3.4 | Moderate level | 27 min |
| September 16, 2023 | M2.9 | Moderate level | 11 min |
| September 12, 2023 | M2.6 | Moderate level | 21 min |
| September 14, 2023 | M2.5 | Moderate level | 6 min |
| September 5, 2023 | M2.1 | Moderate level | 11 min |
| September 7, 2023 | M2.1 | Moderate level | 16 min |
| September 14, 2023 | M2 | Moderate level | 4 min |
| September 19, 2023 | M1.9 | Moderate level | 6 min |
| September 22, 2023 | M1.9 | Moderate level | 16 min |
| September 12, 2023 | M1.7 | Moderate level | 1 min |
| September 15, 2023 | M1.7 | Moderate level | 1 min |
| September 23, 2023 | M1.6 | Moderate level | 21 min |
| September 22, 2023 | M1.5 | Moderate level | 6 min |
| September 11, 2023 | M1.4 | Moderate level | 21 min |
| September 14, 2023 | M1.4 | Moderate level | 56 min |
| September 22, 2023 | M1.4 | Moderate level | 16 min |
| September 5, 2023 | M1.3 | Moderate level | — |
| September 28, 2023 | M1.3 | Moderate level | — |
| September 1, 2023 | M1.2 | Moderate level | 1 h 6 min |
| September 11, 2023 | M1.2 | Moderate level | — |
| September 22, 2023 | M1.2 | Moderate level | 41 min |
| September 30, 2023 | M1.2 | Moderate level | 6 min |
| September 3, 2023 | M1.1 | Moderate level | 2 min |
| September 11, 2023 | M1.1 | Moderate level | — |
| September 19, 2023 | M1.1 | Moderate level | — |
| September 5, 2023 | M1 | Moderate level | — |
| September 24, 2023 | M1 | Moderate level | — |