Saharan Dust Sweeps Across Europe, Bringing Hazy Skies and Vibrant Sunsets

A significant plume of Saharan dust is currently traversing Europe, creating hazy conditions and remarkably vivid sunrises and sunsets across several countries. While the dust is reaching as far as Ireland and the UK, experts say air quality concerns are limited in those regions, though impacts are being felt in Southern Europe.

Dust Plume Origin and Trajectory

The dust originates from the Sahara Desert and was propelled across the Mediterranean Sea and into Europe by weather patterns following Storm Regina, which impacted the southwest coast of Portugal earlier this week. According to Dr. Mark Parrington, a Senior Scientist with the Copernicus Atmosphere Monitoring Service (CAMS), the storm created anticyclonic systems and strong easterly winds that carried the mineral dust particles northward .

Impact on Air Quality and Visibility

While the dust plume is extensive, most of the particles are at higher altitudes, minimizing the impact on air quality at ground level. CAMS currently indicates no significant air quality concerns for Ireland . Though, southern European countries may experience degraded air quality. The primary concern is PM10, particulate matter less than 10 micrometers in diameter, which can irritate airways and exacerbate respiratory conditions, particularly for vulnerable populations like the elderly and young children .

Visually, the dust is creating spectacular sunrises with more orange hues. A deposit of dust may also be noticeable on surfaces if rain occurs while the plume is overhead .

Saharan Dust Events and Europe

Saharan dust events are becoming increasingly frequent. CAMS has tracked several episodes of long-range Saharan dust transport over the Atlantic and Europe in the first months of 2025, impacting particulate matter concentrations and air quality . These events are also linked to hail occurrences in Europe, with elevated dust loading correlating with increased hail events, particularly along the Alpine crest, central France, eastern Germany, Austria and Eastern Europe .

Looking Ahead

The dust plume is expected to continue moving northward over the coming days, potentially reaching the UK and Scandinavia. Authorities advise individuals with respiratory sensitivities to monitor air quality reports and take necessary precautions. The event highlights the interconnectedness of atmospheric systems across continents .