2027 Eclipse Weather Analysis: Where to Go for Clear Skies
Weather is the single biggest variable in eclipse observing, and the 2027 eclipse benefits from occurring during the height of the dry season across almost its entire land path. Unlike the 2026 eclipse (which occurs at sunset with low-altitude cloud risks), the 2027 eclipse takes place in the late morning with the Sun high in the sky, giving you a shorter atmospheric path and less susceptibility to horizon cloud. Here is a detailed weather analysis for each major region along the path of totality, based on historical satellite data from the European Centre for Medium-Range Weather Forecasts (ECMWF) and national meteorological agencies:
Southern Spain (Cádiz, Marbella, Gibraltar)
Spain's eclipse weather is good, but the geometry is unforgiving: the northern limit of totality runs just north of Cádiz, so the on-path strip is narrow. The dominant risk is marine stratus pushed in by the cool Canary Current, which forms overnight and usually burns off through the morning. Cádiz recorded sun-visible conditions on 88% of survey days, Gibraltar around 74% — a figure that understates the reality, because the cloud there is often patchy and a short move finds clear sky. The Atlantic cloud rarely penetrates east of Tarifa, so Marbella and the Alboran coast do better. Inland Andalusian sites average under 15% cloud, but check the path limit first: inland Spain is often outside totality. Also watch for calima — suspended Saharan dust that leaves a hazy sky on otherwise clear days.
Morocco (Tangier and the north coast)
Morocco's on-path cities are all in the north — Tangier, Ceuta and the Rif coast — where the main risk is the same marine stratus and coastal fog that affects Atlantic Spain, often lifting into a stratus layer through the morning. Tangier is partly sheltered by the terrain of the Tangier Peninsula, so its sunrises are frequently misty rather than overcast, but the eclipse there begins at 09:44 local time and the fog does not always clear in time. The reliable strategy is to move 50–70 km inland, where fog influence is negligible: the eastern side of Tangier, Tetouan and the inland Rif are far less affected than the coast between Asilah and Larache, which is the most cloud-prone stretch on this part of the track.
Algeria, Tunisia & Libya
The inland Algerian and Tunisian track — running through Oran, M'sila, Kasserine and Sfax — has some of the best weather prospects on the entire eclipse path. August is the peak of the dry season, and satellite records show morning cloud fractions well under 15% along most of this stretch, with the lowest values in the country south of Sfax. The principal hazards here are not cloud but dust and sand: the high plateau between the Tell Atlas and the Saharan Atlas, and the Sahara itself, are the main source regions, and the sirocco can lift a widespread haze. Inland sites 50–100 km from the coast remain the most reliable choice.
Libya, Egypt & Saudi Arabia
This is the clearest part of the track. Over Libya and western Egypt, satellite records show August cloud almost unknown — some stretches have seen no August cloud on eclipse day at all in the past 23 years. Benghazi and the Egyptian desert are the standout picks; Siwa Oasis and Bahariya Oasis combine almost no cloud prospect with relative immunity to dust storms, and Benghazi performs nearly as well. Further east the picture changes: cloud rises sharply across the Red Sea toward Jeddah, and on the Saudi Tihamah plain dust rather than cloud is the limiting factor — the highest average aerosol load anywhere on the track, so expect a somewhat milky sky. Heat is the other real constraint: Luxor averages 42°C on August 2, so plan shade, water, and camera cooling.
