Best Year to See the Aurora Borealis

We are currently living through one of the most intense solar maximums in recent history. Solar Cycle 25, which began at solar minimum in December 2019, reached its peak activity — solar maximum — in 2024–2025 and has significantly exceeded the forecasts made by NASA and NOAA at the start of the cycle. Official predictions called for a moderate cycle similar to the relatively weak Cycle 24; instead, Cycle 25 has proven to be substantially more active, with sunspot numbers, solar flare frequency, and coronal mass ejection rates all running above predicted levels.

The practical consequences for aurora viewers have been extraordinary. The year 2024 produced several major geomagnetic storms that became global news events. The most dramatic was the May 2024 superstorm, which registered KP 9 on the global geomagnetic index — one of the strongest events since the Halloween storms of 2003. During this event, aurora was photographed from Florida (28°N), southern Spain (37°N), Mexico, Japan, and even parts of the Caribbean. Social media filled with images of red aurora from latitudes where most people had never considered seeing the northern lights. Similar, if somewhat less intense, major storms occurred in October 2024 and multiple times in early 2025.

For aurora travellers at prime northern hemisphere destinations — Tromsø, Abisko, Saariselkä, Yellowknife — the solar maximum has meant near-constant aurora activity throughout aurora season. Even nights that would have produced only moderate KP 2–3 displays during solar minimum have featured KP 4–6 storms during the current maximum, with correspondingly more dramatic overhead displays and lower required geomagnetic thresholds for visible aurora. The live aurora forecast tracks real-time conditions from the DSCOVR satellite and NOAA's space weather prediction centre.

The solar maximum period does not end abruptly — it tapers gradually as sunspot numbers begin their slow decline toward the next minimum. Based on the pattern of previous cycles, the high-activity phase of Cycle 25 is expected to persist through 2025 and into 2026 before beginning a multi-year descent. This means the current window of exceptional aurora activity remains open for the immediate future — and aurora trips planned for 2025 and 2026 are still catching a fundamentally elevated activity environment compared to what will be available in 2028–2030.

The sun's activity cycle averages approximately 11 years from minimum to minimum, though individual cycles range from about 9 to 14 years. This cycle is driven by the gradual build-up and eventual reversal of the sun's magnetic field, which amplifies solar activity — sunspots, flares, coronal mass ejections — as it approaches its maximum complexity and then quiets as the field resets. The aurora at Earth is a direct downstream consequence: more solar activity means more energetic events hitting Earth's magnetosphere, triggering more and stronger aurora.

Looking at historical records of geomagnetic storm frequency and aurora sightings, the following periods stand out as the recent peak years for aurora viewing:

• 2000–2002 (Solar Cycle 23 Maximum): The turn-of-the-millennium solar maximum was one of the most intense of the modern era. The year 2000 featured the largest solar flare ever recorded at the time, and major geomagnetic storms were frequent. Aurora was regularly visible from central Europe, the Mediterranean, and the southern United States. The Halloween storms of October–November 2003, near the end of this cycle's active phase, produced the strongest geomagnetic storm since 1989, with aurora visible near the equator in some reports.
• 2012–2015 (Solar Cycle 24 Maximum): Cycle 24 was a disappointingly weak maximum by historical standards — the weakest in a century — but it still produced notable aurora years. 2012 and 2013 saw elevated aurora activity that produced visible displays from Scotland, Canada, and occasionally the northern United States. For travellers at prime destinations like Norway and Iceland, the Cycle 24 maximum was still an excellent time to visit.
• 2024–2025 (Solar Cycle 25 Maximum): The current maximum, which has already exceeded Cycle 24 and is approaching Cycle 23 in intensity. The record events of May 2024 and subsequent major storms have established 2024–2025 as historically significant. This is almost certainly the best aurora opportunity for at least a decade, and possibly longer if Cycle 26 proves weaker than Cycle 25.

The contrast between solar minimum and solar maximum for aurora frequency is staggering when examined statistically. During the Cycle 24 minimum around 2019–2020, major geomagnetic storms (KP 7+) occurred only a few times per year. During the Cycle 25 maximum, they have occurred multiple times per month. For prime aurora destinations, this difference is felt most at mid-latitudes; for travellers at 65–70°N sitting directly under the auroral oval, the effect is less extreme but still significant. Learn more about how solar activity drives aurora at the solar activity science guide.

The solar maximum of Cycle 25 peaked in 2024–2025, but this does not mean the exceptional aurora window closes immediately. Solar maxima are not sharp peaks — they are plateau-like periods of sustained high activity that gradually taper over multiple years. Examining the decay patterns of previous strong solar cycles, the following trajectory is expected for Cycle 25:

2025 — Peak plateau continuing. Despite being past the statistical sunspot number peak, 2025 should remain at or near maximum activity levels. Solar cycles often have multiple activity peaks (the "double peak" pattern), and Cycle 25 showed clear double-peak characteristics, with a second surge of activity following the initial 2024 peak. Geomagnetic storm frequency in 2025 should remain substantially above average.

2026 — High activity, beginning decline. By 2026, sunspot numbers are likely to begin a more consistent decline, but the activity level will still be dramatically elevated compared to solar minimum. Major geomagnetic storms will still occur — potentially several per year — and aurora at prime northern hemisphere destinations will remain excellent. Mid-latitude aurora events will become less frequent than in 2024–2025 but still more common than in 2018–2020.

2027–2028 — Declining but still good. Activity continues to drop toward the next minimum, expected around 2029–2030. Aurora frequency at prime destinations remains good — the auroral oval persists regardless of the solar cycle — but the dramatic mid-latitude events that made 2024–2025 so exceptional will become increasingly rare.

2029–2031 — Solar minimum. Geomagnetic storm frequency drops to its low. Aurora is still excellent at 65–70°N, where the auroral oval guarantees displays on clear nights, but mid-latitude aurora becomes very rare. This is the worst window for aurora tourism at lower-latitude destinations.

The practical implication is clear: the window of elevated aurora activity is open now, and it narrows progressively from 2026 onward. If you have been contemplating a northern lights trip, the years 2025–2026 represent the last of the truly exceptional years before the gradual descent to minimum. A trip in 2025–2026 is dramatically better positioned than the same trip in 2029–2030. Check current aurora activity levels and the live forecast to see what the sun is doing right now.

Throughout the era of modern geomagnetic monitoring, certain years stand out in the historical record as exceptional for aurora viewing. These years correspond to periods of intense solar activity — particularly strong solar maxima or individual events of extraordinary magnitude. Understanding them puts the current cycle in context.

1989: The March 1989 geomagnetic superstorm remains one of the most powerful in recorded history. It caused the famous Quebec power grid collapse, disrupting electricity for millions of Canadians for 12 hours. Aurora was visible across North America, Europe, and even Cuba. This event occurred near the maximum of Solar Cycle 22, one of the strongest cycles of the 20th century.

2003 (Halloween Storms): In late October and early November 2003, a series of X-class solar flares produced back-to-back geomagnetic storms including a KP 9 event. Aurora was photographed as far south as the Mediterranean and Texas. Tromsø and northern Norway experienced days of sustained brilliant aurora. This period is widely cited by Scandinavian aurora guides as among the most spectacular in living memory.

2014–2015: Despite Cycle 24 being weak overall, 2014–2015 produced several notable aurora years due to the persistence of a particularly active sunspot region that rotated around the sun multiple times. The "St. Patrick's Day Storm" of March 17, 2015 was the strongest geomagnetic storm of Cycle 24, pushing aurora to central Europe and the southern United States. Destinations like Tromsø saw extended periods of excellent activity through winter 2014–2015.

2024: The May 2024 superstorm is already establishing itself as a defining aurora event of a generation. KP reached the maximum index value of 9, and aurora was documented from latitudes previously considered impossible — subtropical latitudes in both hemispheres simultaneously. This is the most widely photographed geomagnetic storm in history, due to the simultaneous proliferation of smartphone cameras and social media. It joins 1989 and 2003 in the canon of historically significant aurora events.

The lesson from this historical perspective: exceptional aurora years cluster at solar maximum and require a combination of a strong overall solar cycle and specific large CME events. The current Cycle 25 has demonstrated that it is capable of producing events comparable to the major cycles of the past. Whether 2024 or 2025 ultimately defines the peak of this cycle, both years will be remembered as extraordinary for aurora viewing. Check current conditions at aurora activity and explore the science at solar activity and aurora formation.