Eclipse 12 Aug 2026 · 20:34
Alcázar de San Juan
39.390°, -3.208° · 644 m a.s.l.
99% of the Sun covered at maximum
Visible · score 50/100 Sun at +6° · 284° WNW
The Sun clears local terrain by 6.32° at peak.
Partial eclipse · 99% obscuration
ALCÁZAR DE SAN JUAN · 39.390° N -3.208° W
Photo: Luis Rogelio HM · CC BY-SA 2.0 · Wikimedia Commons
In Alcázar de San Juan, the Moon covered 99% of the Sun.
At 20:34 local time, the Moon took a bite out of the Sun over Alcázar de San Juan, covering up to 99% of its disc. It didn't become a total or annular eclipse: the Sun kept shining throughout.
The other two eclipses from here
Eclipse 2 Aug 2027
Score 50/ 100
Eclipse visible
The Sun will be 37-41° high, so terrain rules out no city at all: of the 560 assessed, 522 tie on the same score. What decides is being inside the path.
Eclipse 26 Jan 2028
Score 73/ 100
Full ring visible
See the eclipse from Alcázar de San Juan minute by minute
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About Alcázar de San Juan
Alcázar de San Juan is located in the heart of La Mancha, in the province of Ciudad Real (Castilla-La Mancha). With around 30,700 inhabitants and an altitude of 644 metres above sea level, it occupies a central position on the southern plateau of the Iberian Peninsula. The town is a historic communications hub of the Manchego region, and its characteristic flatness offers broad horizons in virtually all directions.
For this eclipse
On 12 August 2026, Alcázar de San Juan will witness a partial solar eclipse with maximum at 20:33 (local time). At that moment the Sun will be 6.5° above the horizon, with a margin of 6.4° above the local topographic profile: visible, though very low on the horizon. The Sun will be positioned toward the west-northwest (azimuth 284°), so it is advisable to choose a location with an unobstructed horizon in that direction. The use of certified solar filter glasses is essential throughout the observation.
The weather in August
Data from AEMET (station 4064Y, reference period 1991–2020) indicates that the risk of thunderstorms in August in Alcázar de San Juan is low. This is relevant for observing the afternoon eclipse of 12 August, whose maximum occurs at 20:33: thunderstorms are the main factor that can obstruct visibility on a summer afternoon on the Manchego plateau. A reduced convective risk increases the chances of clear skies during that time window.
Past eclipses
The last total eclipse visible from Alcázar de San Juan occurred on 28 May 1900, 126 years ago, with a totality of 72 seconds. More recently, on 3 October 2005 an annular eclipse took place with an obscuration of 90.3% and an annular phase of 92 seconds. The next annular eclipse following those of 2026 and 2028 is not expected until 13 July 2075, with an obscuration of 87.3%.
Direction and altitude of the Sun
At the moment of maximum, at 20:33, the Sun will be at an azimuth of 284°, equivalent to west-northwest. Its altitude above the horizon will be 6.5°, a very low position: roughly what a fist at arm's length covers above the horizon line. To not miss the eclipse, it is advisable to scout in advance a location with a clear view toward the west-northwest, free from buildings, trees or terrain elevations that might obstruct that section of sky.
Editorial text by eclipses.app · Data: Wikidata, AEMET, NASA and JPL planetary ephemerides.
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The eclipse from Alcázar de San Juan
In Alcázar de San Juan, the eclipse reached its maximum at 20:34 local time, with 99% of the Sun covered by the Moon.
In Alcázar de San Juan, the Sun was 6° above the horizon, toward the WNW. With that much margin above the horizon, any spot with open sky worked.
This area typically sees around 3% median cloud cover at that hour, based on ten years of historical data — not a forecast for this specific eclipse.
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Don't miss it
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Eclipse schedule in Alcázar de San Juan
Local time · Europe/Madrid| Phase | Local time | UTC | Progress | Sun alt. | Sun az. |
|---|---|---|---|---|---|
| C1 — Partial begins | 19:38:35 | 17:38:35 UTC | +16.9° | 275.6° | |
| Maximum | 20:33:54 | 18:33:54 UTC | +6.4° | 284.0° | |
| The Sun sets behind the terrain(terrain event, not an eclipse phase) | 21:10 | 19:10 UTC | +0.1° | 289.7° | |
| C4 — Partial endsnot visible | 21:25:44 | 19:25:44 UTC | -2.6° | 292.1° |
Phases marked with ⛰️ were not seen: the Sun was already hidden behind the real terrain at that moment.
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Eclipse phases
Times in CEST local time
Oriented as seen with the naked eye, zenith up (official ephemerides usually draw it with celestial north up, rotated with respect to this).
Phases shown in red aren't observable: they happen while the Sun is below the horizon.
Location
- Latitude
- 39.3901° N
- Longitude
- 3.2083° W
- Elevation
- 644 m
Eclipse phases
- Eclipse begins
- 19:38:35
- Maximum
- 20:33:54
- Eclipse ends
- 21:25:44
- Sunset (flat horizon)
- 21:12:15
Duration
- Eclipse
- 1h 47m 9s
Values at maximum
- Obscuration
- 99%
- Sun altitude
- +6.4°
- Sun azimuth
- 284.0°
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Sun direction and altitude at maximum
It was toward WNW (284.0°)
284.0° WNW
Azimuth at maximum
6.43°
Sun altitude at maximum
0.11°
Terrain horizon
+6.32°
Sun−terrain margin
What the contact points (C1-C4) mean
A solar eclipse is described by four key moments, the contact points between the discs of the Sun and the Moon:
- C1First contact: the Moon touches the edge of the Sun and the partial eclipse begins.
- C2Second contact: the Moon fully covers the Sun and totality begins.
- C3Third contact: the Sun reappears and totality ends.
- C4Fourth contact: the Moon leaves the Sun's disc and the eclipse ends.
Where the eclipse is only partial, the Moon never fully covers the Sun: only C1 and C4 occur, with no totality in between.
Peaks near Alcázar de San Juan
| Peak | Elevation | Distance | Azimuth |
|---|---|---|---|
| Cerro San Antón | 729 m | 2.9 km | 141° SE |
| Sierra del Polillo | 727 m | 24.2 km | 309° NW |
| Cerro de Tirez | 678 m | 22.2 km | 320° NW |
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The August sky
3%Historical average cloud cover
P25 — clearer days · 0%Median cloud cover · 3%P75 — cloudier days · 62%
10-year average over 70 samples: the 3 days before and after 12 August, at the same eclipse hour · Source: ERA5 (ECMWF)
Cloud forecast
Full cloud-cover forecast for eclipse day, including the hour-by-hour outlook toward the sun. Available with PRO.
See plansOther eclipses seen from Alcázar de San Juan
- Last total eclipseMay 28, 1900126 years ago
- Last annular eclipseOctober 3, 200521 years ago
- Next annular eclipseJuly 13, 2075
Solar eclipses computed from astronomical ephemerides for the city's coordinates.
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Frequently asked questions about the eclipse in Alcázar de San Juan
Was the eclipse of August 12, 2026 visible from Alcázar de San Juan?
Yes, partial eclipse: the Sun was 99% covered at maximum from Alcázar de San Juan.
What time was the eclipse maximum in Alcázar de San Juan?
Maximum occurred at 20:33 local time (18:33 UTC) in Alcázar de San Juan.
Which direction was the Sun in during the eclipse from Alcázar de San Juan?
The Sun was toward the WNW (azimuth 284°), 6° above the horizon at maximum from Alcázar de San Juan.
Was Alcázar de San Juan a good place to watch the eclipse?
Alcázar de San Juan was a good option (score 50/100): all eclipse phases were visible, though not the regional optimum.
Do I need special glasses to watch the eclipse?
Yes, you need ISO 12312-2 certified eclipse glasses during every partial phase. Regular sunglasses do NOT protect. Glasses can only be removed during the totality phase (when the Sun is fully covered); never during annular or partial eclipses. Pages flagged "visible" assume a clear horizon, not a viewing recommendation.
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