Spain is set to witness its first total solar eclipse in over a century on 12 August 2026, but clear skies remain uncertain across much of the northern coastline. Current forecasts point to stable, anticyclonic weather for most of the country, yet meteorologists warn that cloud cover could disrupt visibility in basic regions such as Galicia and the Cantabrian coast. The eclipse’s narrow path of totality crosses the northern Iberian Peninsula and continues toward the western Mediterranean, ending near the Balearic Islands. Viewing conditions may vary sharply over relatively short distances.
The Agencia Estatal de Meteorología (Aemet) has announced that it will release a dedicated daily forecast for the eclipse starting Friday. The special bulletin will include an interactive cloud viewer and detailed maps highlighting the best observation locations. It will track cloud cover and temperature, along with rain probability and wildfire risk. Aemet will also flag any adverse weather warnings as the event approaches. Its station network, including sites serving A Coruña and Santiago de Compostela, provides recent hourly observations and daily summaries that can help track local conditions as the date draws nearer.
Aemet spokesperson Rubén del Campo says reliable predictions of cloud conditions are possible only within a three-day window. Forecasting specific cloud patterns for the eclipse more than five days in advance, he says, is no more accurate than a broad climatological study. The outlook currently appears favorable, but the anticyclone’s position will be decisive: even a slight shift could bring unexpected cloud or storms to the north at the critical moment.
Benito Fuentes, another Aemet meteorologist, has published a color-coded risk map on X. Most of Spain is marked green, indicating a high chance of clear skies. The Balearic Islands also look favorable, while the southern sides of the Canary Islands may see fewer clouds. A narrow blue zone indicates possible afternoon cloud development in some eastern areas. The entire Galician and Cantabrian coast is marked red, signaling high uncertainty, not a definite risk of poor weather.
Weather models currently point to two similar scenarios. The most favorable conditions are expected in the central-western peninsula, while the eastern half could see typical convective clouds over mountain ranges such as Cazorla and the Pyrenees. Medium-range model output can offer broad guidance several days ahead, but it is not a deterministic forecast of local cloud cover. The basic unknown is whether these clouds will develop into storms or last long enough to affect eclipse viewing.
The greatest uncertainty lies where the eclipse’s path of totality enters Spain, along the Galician and Cantabrian coasts. Model updates there frequently alternate between predicting cloud cover and clear skies, making plans especially difficult for those hoping to see the event in these areas. Because the shadow track is geographically narrow, a location’s position relative to the path matters alongside local weather. Exact contact times depend on the observer’s location.
Fuentes recommends that viewers check the forecast for areas 20 to 70 kilometers to the west, as well as for their immediate location. At the time of maximum eclipse, around 20:30, the sun will be low on the horizon. Clouds far to the west could block the view even if the sky overhead is clear.
Saharan dust (calima) and wildfire smoke could also reduce visibility, though they are less likely to obscure the sun completely. As Spain prepares for the rare astronomical event, meteorologists are monitoring the changing weather closely. Recent disruptions elsewhere in Europe, including storms and heatwaves that affected Switzerland earlier this summer, show how quickly conditions can change; see the report on severe weather impacts in Switzerland.
The last total solar eclipse visible from mainland Spain occurred in 1912, making this event a once-in-a-lifetime chance for many. The path of totality will stretch from Galicia to the Balearic Islands, but only viewers in the right place at the right time, with a clear view west, will experience the full spectacle. Aemet’s daily updates and interactive tools are expected to help residents and visitors make the most of the event.
