The 2 August 2027 eclipse, town by town

How long totality lasts, and at what time on the local clock, for 14 towns along the path. Every figure is computed for that town's own coordinates with the same engine, so they are directly comparable.

Choosing between towns? Where to watch the 2027 solar eclipses sets these towns beside each other with the usual August cloud for each and what to watch out for, and adds the February annular eclipse.

The headline: Sohag, Egypt gets 6 min 22 sec, the longest on this list. The NASA eclipse canon puts the longest totality available anywhere on this eclipse at 6 min 23 sec, at latitude 26.81 north, longitude 31.13 east, in the Western Desert west of the Nile; the durations below come from the canon's own elements and agree with it to about a second, as the note on conventions explains. Nothing on easily accessible land this century beats it. The main page for this eclipse has the global circumstances and the shape of the path.

Inside the path of totality

Sorted by how long the Sun is completely covered. Local time is the town's own clock time at maximum eclipse.

Standing somewhere specific? Your Eclipse Day prints the whole morning to the second for your coordinates: a printable plan, a pocket field card and a calendar file with alarms.

Close, but outside the path

These towns see a deep partial eclipse and no totality at all. The difference is not a matter of degree: without totality there is no corona, the sky does not go dark, and filters never come off. If you are traveling for this eclipse, being in one of these towns on the day is the one mistake worth real effort to avoid.

En español: las ciudades españolas de esta franja tienen su página en castellano: Tarifa, Ceuta, Cádiz, Málaga.

Anywhere else

This list is only a sample of the path. For any other location, including a specific hotel or a spot out on the center line, the Eclipse Explorer computes contact times and obscuration for coordinates you give it. Place names and coordinates here come from GeoNames (geonames.org), CC BY 4.0.

How these were computed

Contact times come from NASA's Besselian elements for this eclipse (Eclipse Predictions by Fred Espenak, NASA's GSFC), evaluated by the same code behind every other page on this site and the public API at each town's GeoNames coordinates at sea level. Durations are quoted to the second because the computation is deterministic. A second is not meaningful to a person standing there, because the duration changes if they move a few kilometers toward the center line. The methodology page covers the conventions, and the numbers themselves are public-domain facts you may reuse freely.

Two things to know about every duration on this page. Greatest eclipse is the moment the axis of the Moon's shadow passes closest to Earth's center; greatest duration is where totality lasts longest, and the two fall at different places. The NASA eclipse canon puts greatest duration at 6 min 23.2 sec and greatest eclipse a little southeast of it at 6 min 22.6 sec.

Because they come from the canon's own elements and its lunar radius, every town's totality agrees with JPL's DE440 ephemeris to within half a second. Treat every time and duration below as good to about five seconds.

One more convention worth stating: these are smooth-limb figures, at the lunar radius the canon adopts for totality. The Moon's edge is mountainous, and a limb-corrected calculation shifts the second and third contact instants by a second or two either way depending on which valley the last sliver of Sun drains through. That correction is beyond what this page computes, and it is smaller than the difference a short drive makes.