In recent days there have been messages circulating about the appearance of northern lights in Spain within a specific October window. The expectation is understandable, especially after recent episodes that captured the attention of half the country, but experts urge caution before taking anything for granted.
Reference organizations emphasize that, although the Sun is going through a moment of greater activity, long-term predictions lack a solid foundation. For those who dream of seeing this phenomenon from the peninsula, the key is to understand how it works, follow reliable sources, and prepare a responsible observation if, finally, the conditions are met.
What the experts are really saying
In response to headlines pointing to a high geomagnetic index on closed dates, those responsible for the NOAA SWPC They have indicated that "Kp 6 levels are not being anticipated" in those terms and that the forecasts are updated with a few days in advanceThe scientific community in Spain, including representatives from the IAA and the UAH, agrees: such a precise prediction is not possible with a few weeks' notice.
Astrophysicist Héctor Socas emphasizes the central idea: until it is observed a solar flare well targeted, there is no reliable way to ensure its impact. In other words, real alerts arrive when the event is already identified and the warning window is short (approx. 1–3 days).
This does not mean that it is impossible to see auroras in mid-latitudes, but responsible forecasting requires caution. If an aurora were to occur during those days, intense geomagnetic storm, then there would be options; in the meantime, it's best to be wary of messages that assign specific dates or times too far in advance.
How they form and why they are rarely seen here
Usually, the spectacle is confined to the so-called auroral oval, close to the poles. In very strong episodes, this oval expands southwards and allows light to reach lower latitudes, something that can happen in Spain exceptional.
When it occurs at our latitude, the most common thing is to perceive a faint glow on the northern horizon, sometimes with reddish dominant, rather than the defined curtains seen in Scandinavia. This appearance depends on the geometry of the phenomenon and the height at which the emission occurs.
If conditions are right: where and how to try it
If a storm capable of lowering the auroral oval is finally confirmed, it will be advisable to prioritize Dark skies, open to the north and with few clouds. The strip between the 22:00 and 2:00 It is usually the most appreciated, although in strong episodes it can be seen before or after.
In Galicia, the province of Lugo and the region of To Mariña count on interesting enclaves; municipalities such as Chantada y Walls boast Starlight certification. In Catalonia, far from the coastal lighting of the Costa Dorada, the Llaberia Mountains and the Montsant They offer height and a clear horizon.
In Navarra, places like Lerin, Royal Bardenas or Mount Irulegui They have good night-time conditions, and in Aragon there are areas of the Iberian and viewpoints such as the Cubel Watchtower or the environment of the observatory of MontalbánIf the episode were particularly intense, discreet traces could appear on the summits of the mountains in the south. Cadiz and other high points.
In addition to choosing the site, remember to turn off screens, allow your eyes to relax, adapt to darkness and look north. Patience is part of the plan: the auroras can fluctuate in minutes and sometimes they are only revealed in long exposure photography.
In well-lit coastal stretches, it is advisable to retreat a few kilometers inland or gain altitude. In regions such as To Mariña, move away from the urbanized coastline and look for inland mountains It can make the difference between seeing a simple flash or distinguishing more defined structures.
Practical observation and photography tips
Before you leave, check reliable sources, applications for the auroras and apply a couple of basic rules. You don't need professional equipment to enjoy the sky, but a minimum of preparation helps. seize the night.
- Check the Kp and the real-time solar wind status (SWPC/NOAA, AEMET, AEE). Higher values expand the potential area, but the details arrive only with little advance notice.
- Seek darkness: Stay away from light pollution and avoid direct light. Give your eyes 20–30 minutes to adjust.
- Look north and keep an eye on the horizon. A diffuse, shifting red can be more significant than an obvious green at these latitudes.
- If you photograph: tripod, manual focus to infinity, moderate-high ISO, and exposures of several seconds to lift color without burning the sky.
Remember that the color recorded by the camera may be more intense than that perceived by the naked eye; this does not detract from the phenomenon, it only reflects how the sensor integrates More light in less time.
Recent background and historical records
The night of May of 2024 It left memorable scenes from different parts of the country, with photographs that captured green and reddish tones. On that occasion, the storm was powerful enough to push the oval towards mid latitudes.
Looking further back, auroras were documented as visible from Spain in January 1938, in the midst of the Civil War, and there are also references from previous centuries collected by meteorology scholars. These are episodes that have been told, but not unheard of in our history.
It is worth keeping in mind that even on favorable nights, the appearance here is close to a glow on the northern horizon. Therefore, many witnesses first describe a reddish mist before identifying clearer structures.
Impact of severe storms and where to get information
The most commonly used scales to communicate geomagnetic activity are the Kp index and the NOAA G Scale (from G1 to G5). High-level episodes can, in addition to generating auroras, affect satellites and power grids, which is why official notices are so relevant.
To avoid hoaxes, it is best to follow the news in real time. SWPC/NOAAIn the AEMET and the Spanish Space AgencyWhen there is a well-directed coronal mass ejection, the forecasts are updated and specify whether or not there is a risk of auroras in mid-latitudes.
The moment of solar maximum increases the likelihood of intense weather, but doesn't guarantee any given date. If the alert comes, plan your outing, prepare your gear, and choose a dark location: the rest will be decided by the sky and meteorology.
Although calendars with "magic" days circulate, the truth is that only a clear signal from the Sun can safely set off the alarms. Those who pay attention to official sources and carefully select their location will have the best hunting opportunities, with patience and judgment, the next dawn that appears over Spain.
