| Date | Sunspot Number Predicted | Sunspot Number 25th | Sunspot Number 50th | Sunspot Number 75th | 10.7 cm Radio Flux Predicted | 10.7 cm Radio Flux 25th | 10.7 cm Radio Flux 50th | 10.7 cm Radio Flux 75th |
|---|---|---|---|---|---|---|---|---|
| 2024-12 | 152.4 | 144.9 - 156.8 | 140.3 - 162.0 | 134.6 - 169.2 | 188.7 | 183.0 - 192.0 | 179.5 - 195.9 | 175.2 - 201.2 |
| 2025-01 | 150.6 | 143.2 - 155.9 | 138.3 - 162.0 | 132.6 - 168.6 | 187.6 | 182.0 - 191.5 | 178.3 - 196.1 | 173.9 - 200.9 |
| 2025-02 | 146.3 | 138.8 - 151.7 | 133.9 - 158.3 | 128.0 - 165.4 | 185.3 | 179.7 - 189.5 | 176.0 - 194.4 | 171.5 - 199.6 |
| 2025-03 | 140.3 | 132.8 - 146.1 | 128.0 - 153.0 | 122.0 - 159.7 | 179.3 | 173.7 - 183.7 | 170.1 - 188.9 | 165.5 - 193.8 |
| 2025-04 | 139.9 | 132.5 - 146.1 | 127.8 - 153.4 | 122.0 - 159.2 | 177.0 | 171.4 - 181.7 | 167.8 - 187.1 | 163.4 - 191.4 |
| 2025-05 | 137.5 | 130.2 - 143.8 | 125.7 - 151.2 | 119.9 - 156.7 | 172.4 | 166.9 - 177.2 | 163.5 - 182.8 | 159.1 - 186.8 |
| 2025-06 | 137.6 | 130.6 - 143.9 | 126.6 - 151.3 | 120.3 - 156.9 | 172.4 | 167.1 - 177.1 | 164.0 - 182.7 | 159.3 - 186.8 |
| 2025-07 | 137.7 | 131.2 - 144.4 | 127.5 - 151.8 | 120.7 - 156.9 | 172.1 | 167.2 - 177.1 | 164.3 - 182.7 | 159.2 - 186.5 |
| 2025-08 | 137.6 | 131.6 - 144.4 | 127.8 - 152.1 | 120.7 - 156.8 | 171.4 | 166.8 - 176.5 | 163.9 - 182.2 | 158.5 - 185.8 |
| 2025-09 | 137.1 | 131.0 - 143.7 | 127.9 - 151.6 | 120.4 - 156.1 | 170.0 | 165.4 - 175.1 | 163.0 - 181.0 | 157.4 - 184.3 |
| 2025-10 | 135.9 | 130.5 - 142.5 | 127.4 - 150.0 | 119.6 - 154.8 | 168.1 | 164.0 - 173.1 | 161.6 - 178.7 | 155.8 - 182.3 |
| 2025-11 | 134.2 | 129.0 - 140.4 | 126.1 - 147.8 | 118.2 - 152.6 | 165.7 | 161.7 - 170.4 | 159.5 - 175.9 | 153.5 - 179.5 |
| 2025-12 | 132.0 | 126.5 - 137.5 | 123.4 - 144.8 | 115.8 - 149.3 | 162.9 | 158.8 - 167.1 | 156.4 - 172.6 | 150.6 - 176.0 |
| 2026-01 | 129.5 | 123.6 - 134.3 | 120.2 - 141.1 | 113.0 - 145.6 | 159.9 | 155.4 - 163.6 | 152.9 - 168.7 | 147.5 - 172.1 |
| 2026-02 | 126.7 | 120.8 - 131.1 | 117.3 - 137.5 | 110.2 - 141.9 | 156.9 | 152.4 - 160.2 | 149.7 - 165.1 | 144.4 - 168.4 |
| 2026-03 | 124.1 | 118.4 - 128.3 | 114.5 - 134.4 | 107.7 - 138.7 | 154.2 | 149.8 - 157.3 | 146.9 - 161.9 | 141.8 - 165.2 |
| 2026-04 | 121.3 | 115.6 - 125.4 | 111.4 - 131.0 | 105.0 - 135.5 | 151.3 | 147.0 - 154.4 | 143.8 - 158.6 | 139.0 - 162.0 |
| 2026-05 | 118.5 | 112.9 - 122.6 | 108.4 - 128.0 | 101.9 - 132.8 | 148.5 | 144.3 - 151.7 | 140.9 - 155.7 | 136.1 - 159.4 |
| 2026-06 | 115.7 | 110.2 - 120.1 | 105.1 - 125.4 | 98.7 - 130.3 | 145.8 | 141.7 - 149.1 | 137.9 - 153.1 | 133.2 - 156.9 |
| 2026-07 | 112.9 | 107.2 - 117.4 | 101.9 - 122.8 | 95.4 - 128.0 | 143.2 | 138.9 - 146.6 | 134.9 - 150.7 | 130.2 - 154.6 |
| 2026-08 | 110.0 | 104.1 - 114.8 | 98.3 - 120.2 | 92.1 - 126.0 | 140.5 | 136.1 - 144.1 | 131.8 - 148.1 | 127.2 - 152.6 |
| 2026-09 | 107.2 | 100.7 - 112.5 | 94.9 - 117.8 | 88.9 - 124.1 | 137.8 | 133.1 - 141.8 | 128.7 - 145.9 | 124.4 - 150.6 |
| 2026-10 | 104.4 | 96.8 - 110.2 | 91.4 - 115.5 | 85.7 - 122.6 | 135.3 | 129.7 - 139.7 | 125.7 - 143.6 | 121.6 - 149.0 |
| 2026-11 | 101.5 | 92.8 - 108.0 | 87.7 - 113.3 | 82.4 - 120.9 | 132.7 | 126.3 - 137.6 | 122.6 - 141.5 | 118.8 - 147.2 |
| 2026-12 | 98.6 | 89.2 - 106.2 | 84.2 - 111.3 | 79.3 - 118.9 | 130.1 | 123.2 - 135.7 | 119.6 - 139.5 | 116.2 - 145.3 |
| 2027-01 | 95.7 | 85.4 - 104.1 | 80.8 - 109.0 | 76.0 - 116.8 | 127.5 | 120.1 - 133.7 | 116.8 - 137.4 | 113.5 - 143.3 |
| 2027-02 | 92.8 | 81.8 - 102.3 | 77.6 - 107.0 | 72.9 - 115.0 | 125.0 | 117.1 - 132.0 | 114.2 - 135.5 | 110.9 - 141.5 |
| 2027-03 | 90.1 | 78.9 - 100.7 | 74.5 - 105.5 | 70.2 - 113.7 | 122.7 | 114.7 - 130.4 | 111.7 - 134.0 | 108.7 - 140.2 |
| 2027-04 | 87.2 | 75.9 - 98.4 | 71.2 - 103.5 | 67.2 - 112.2 | 120.2 | 112.2 - 128.4 | 109.0 - 132.1 | 106.3 - 138.6 |
| 2027-05 | 84.3 | 73.4 - 96.5 | 68.7 - 101.3 | 64.4 - 110.5 | 117.8 | 110.1 - 126.6 | 106.9 - 130.2 | 104.0 - 137.0 |
| 2027-06 | 81.4 | 70.9 - 94.3 | 65.8 - 99.0 | 61.2 - 108.2 | 115.4 | 108.1 - 124.6 | 104.7 - 128.1 | 101.6 - 134.9 |
| 2027-07 | 78.6 | 67.7 - 91.7 | 62.5 - 96.5 | 58.0 - 105.4 | 113.1 | 105.6 - 122.5 | 102.1 - 126.0 | 99.2 - 132.5 |
| 2027-08 | 75.8 | 64.8 - 88.9 | 59.1 - 93.9 | 54.7 - 102.2 | 110.8 | 103.4 - 120.1 | 99.6 - 123.7 | 96.8 - 129.9 |
| 2027-09 | 73.0 | 62.1 - 85.9 | 56.2 - 91.2 | 51.2 - 99.1 | 108.6 | 101.3 - 117.7 | 97.5 - 121.5 | 94.3 - 127.3 |
| 2027-10 | 70.3 | 59.7 - 83.3 | 53.7 - 88.7 | 48.3 - 96.2 | 106.5 | 99.5 - 115.6 | 95.7 - 119.5 | 92.3 - 124.9 |
| 2027-11 | 67.5 | 57.3 - 80.6 | 51.1 - 86.3 | 45.6 - 93.5 | 104.4 | 97.7 - 113.4 | 93.8 - 117.5 | 90.4 - 122.7 |
| 2027-12 | 64.9 | 54.9 - 78.1 | 49.0 - 83.7 | 43.0 - 90.8 | 102.5 | 96.0 - 111.5 | 92.3 - 115.4 | 88.7 - 120.5 |
| 2028-01 | 62.3 | 52.6 - 75.3 | 46.8 - 81.1 | 40.4 - 88.0 | 100.5 | 94.4 - 109.3 | 90.8 - 113.4 | 86.9 - 118.3 |
| 2028-02 | 59.7 | 50.6 - 72.3 | 44.9 - 78.4 | 37.9 - 85.1 | 98.7 | 92.9 - 107.1 | 89.5 - 111.3 | 85.4 - 116.0 |
| 2028-03 | 57.3 | 48.5 - 69.0 | 43.1 - 75.7 | 35.9 - 82.4 | 97.0 | 91.5 - 104.7 | 88.3 - 109.3 | 84.1 - 114.0 |
| 2028-04 | 54.8 | 46.0 - 65.6 | 41.1 - 72.8 | 34.0 - 79.9 | 95.3 | 89.8 - 102.3 | 86.9 - 107.2 | 82.9 - 112.1 |
| 2028-05 | 52.4 | 43.3 - 62.4 | 39.3 - 70.2 | 32.2 - 77.4 | 93.7 | 88.1 - 100.1 | 85.8 - 105.3 | 81.8 - 110.3 |
| 2028-06 | 50.1 | 40.4 - 59.2 | 37.2 - 67.5 | 30.2 - 75.0 | 92.1 | 86.3 - 97.9 | 84.5 - 103.4 | 80.6 - 108.5 |
| 2028-07 | 47.8 | 38.0 - 56.4 | 35.1 - 64.8 | 28.4 - 72.5 | 90.7 | 84.8 - 96.0 | 83.2 - 101.5 | 79.5 - 106.7 |
| 2028-08 | 45.6 | 35.4 - 53.7 | 32.9 - 62.1 | 26.5 - 70.2 | 89.2 | 83.3 - 94.2 | 81.9 - 99.6 | 78.5 - 105.0 |
| 2028-09 | 43.4 | 32.9 - 51.1 | 30.7 - 59.4 | 24.5 - 68.3 | 87.9 | 81.9 - 92.5 | 80.6 - 97.8 | 77.4 - 103.7 |
| 2028-10 | 41.3 | 30.7 - 48.5 | 28.3 - 56.8 | 22.7 - 66.9 | 86.6 | 80.6 - 90.9 | 79.4 - 96.1 | 76.4 - 102.7 |
| 2028-11 | 39.3 | 28.8 - 46.1 | 25.8 - 54.2 | 20.7 - 65.8 | 85.4 | 79.6 - 89.4 | 78.0 - 94.4 | 75.4 - 102.0 |
| 2028-12 | 37.4 | 27.6 - 44.0 | 23.7 - 52.0 | 18.9 - 64.8 | 84.3 | 78.9 - 88.1 | 76.9 - 93.0 | 74.5 - 101.3 |
| 2029-01 | 35.4 | 26.1 - 42.0 | 21.6 - 49.6 | 16.9 - 63.5 | 83.2 | 78.1 - 87.0 | 75.8 - 91.5 | 73.6 - 100.4 |
| 2029-02 | 33.6 | 24.1 - 40.0 | 19.2 - 47.6 | 14.9 - 62.1 | 82.1 | 77.1 - 85.8 | 74.7 - 90.3 | 72.6 - 99.5 |
| 2029-03 | 32.0 | 22.3 - 38.3 | 17.0 - 45.8 | 13.2 - 60.9 | 81.3 | 76.2 - 84.8 | 73.6 - 89.2 | 71.8 - 98.7 |
| 2029-04 | 30.2 | 20.3 - 36.5 | 14.7 - 44.0 | 11.3 - 59.4 | 80.3 | 75.2 - 83.8 | 72.5 - 88.1 | 71.0 - 97.7 |
| 2029-05 | 28.6 | 18.3 - 35.0 | 12.4 - 42.0 | 9.8 - 57.8 | 79.5 | 74.2 - 82.9 | 71.5 - 87.0 | 70.3 - 96.7 |
| 2029-06 | 27.0 | 16.5 - 34.1 | 10.5 - 40.4 | 8.5 - 56.3 | 78.7 | 73.4 - 82.5 | 70.7 - 86.1 | 69.8 - 95.8 |
| 2029-07 | 25.6 | 14.9 - 33.3 | 8.9 - 39.1 | 7.3 - 54.8 | 77.9 | 72.7 - 82.1 | 70.0 - 85.3 | 69.3 - 94.8 |
| 2029-08 | 24.1 | 13.5 - 32.6 | 7.5 - 37.9 | 6.0 - 52.9 | 77.2 | 72.1 - 81.7 | 69.4 - 84.7 | 68.8 - 93.7 |
| 2029-09 | 22.7 | 12.5 - 31.8 | 6.5 - 36.7 | 4.7 - 50.7 | 76.5 | 71.6 - 81.3 | 69.0 - 84.1 | 68.3 - 92.4 |
| 2029-10 | 21.4 | 11.8 - 31.1 | 5.8 - 35.7 | 3.9 - 48.4 | 75.9 | 71.4 - 80.9 | 68.8 - 83.5 | 68.0 - 91.0 |
| 2029-11 | 20.1 | 11.3 - 30.2 | 5.5 - 34.5 | 3.2 - 45.9 | 75.3 | 71.2 - 80.5 | 68.7 - 82.9 | 67.8 - 89.5 |
| 2029-12 | 18.9 | 10.5 - 29.3 | 5.1 - 33.4 | 2.3 - 43.5 | 74.8 | 70.9 - 80.1 | 68.6 - 82.3 | 67.8 - 88.1 |
| 2030-01 | 17.8 | 9.6 - 28.3 | 4.6 - 32.1 | 1.2 - 41.0 | 74.3 | 70.5 - 79.6 | 68.4 - 81.6 | 67.8 - 86.7 |
| 2030-02 | 16.6 | 8.6 - 27.0 | 3.8 - 30.6 | 0.0 - 38.3 | 73.8 | 70.1 - 79.0 | 68.1 - 80.8 | 67.8 - 85.2 |
| 2030-03 | 15.7 | 7.6 - 25.8 | 3.0 - 29.0 | 0.0 - 35.9 | 73.4 | 69.7 - 78.4 | 67.8 - 80.0 | 67.8 - 83.9 |
| 2030-04 | 14.7 | 6.4 - 24.5 | 1.9 - 27.3 | 0.0 - 34.0 | 73.0 | 69.3 - 77.7 | 67.8 - 79.2 | 67.8 - 82.8 |
| 2030-05 | 13.8 | 6.1 - 23.1 | 1.4 - 25.7 | 0.0 - 32.2 | 72.6 | 69.2 - 77.1 | 67.8 - 78.4 | 67.8 - 81.9 |
| 2030-06 | 12.9 | 5.5 - 21.5 | 0.5 - 23.9 | 0.0 - 30.2 | 72.2 | 69.0 - 76.3 | 67.8 - 77.6 | 67.8 - 80.8 |
| 2030-07 | 12.0 | 4.7 - 20.0 | 0.0 - 22.2 | 0.0 - 28.5 | 71.9 | 68.7 - 75.6 | 67.8 - 76.7 | 67.8 - 80.0 |
| 2030-08 | 11.2 | 3.6 - 18.4 | 0.0 - 20.5 | 0.0 - 26.6 | 71.6 | 68.3 - 74.9 | 67.8 - 75.9 | 67.8 - 79.0 |
| 2030-09 | 10.5 | 1.8 - 16.6 | 0.0 - 18.4 | 0.0 - 24.7 | 71.3 | 67.8 - 74.1 | 67.8 - 74.9 | 67.8 - 78.1 |
| 2030-10 | 9.8 | 0.0 - 15.1 | 0.0 - 16.8 | 0.0 - 23.2 | 71.0 | 67.8 - 73.4 | 67.8 - 74.2 | 67.8 - 77.3 |
| 2030-11 | 9.1 | 0.0 - 13.7 | 0.0 - 15.3 | 0.0 - 21.8 | 70.7 | 67.8 - 72.8 | 67.8 - 73.5 | 67.8 - 76.7 |
| 2030-12 | 8.5 | 0.0 - 12.5 | 0.0 - 13.9 | 0.0 - 20.6 | 70.5 | 67.8 - 72.3 | 67.8 - 73.0 | 67.8 - 76.1 |
Multi-year forecast of the smoothed monthly sunspot number and the smoothed monthly F10.7. For further details see Solar Cycle Progression.
Multi-year forecast of the smoothed monthly sunspot number and the smoothed monthly F10.7. For further details see Solar Cycle Progression.
For product history see Solar Cycle Progression.
Predicted Solar Cycle: Sunspot Number And Radio Flux Values with Expected Ranges
Predicted Solar Cycle Data (JSON)
Sources
- S.I.D.C. Brussels International Sunspot Number, Data Files.
- Penticton, B.C., Canada: 10.7cm radio flux values (sfu), Data Files.
- Predicted values are based on the consensus of the Solar Cycle 25 Prediction Panel
Fields (JSON)
- time-tag: yyyy-mm
- predicted_ssn: predicted sunspot number
- high25_ssn: predicted sunspot number 25th percentile high range
- low25_ssn: predicted sunspot number 25th percentile low range
- high_ssn: predicted sunspot number high range
- low_ssn: predicted sunspot number low range
- high75_ssn: predicted sunspot number 75th percentile high range
- low75_ssn: predicted sunspot number 75th percentile low range
- predicted_f10.7: predicted f10.7cm value
- high25_f10.7: predicted f10.7cm 25th percentile high range
- low25_f10.7: predicted f10.7cm 25th percentile low range
- high_f10.7: predicted f10.7cm high range
- low_f10.7: predicted f10.7cm low range
- high75_f10.7: predicted f10.7cm 75th percentile high range
- low75_f10.7: predicted f10.7cm 75th percentile low range