42.738°, -8.441° · 158 m a.s.l.
Visible
Partial eclipse · 99.9% obscuration
The Sun clears local terrain by 11.25° at peak.
99.9%
Partial eclipse · 99.9% obscuration
| Phase | UTC | Local time | Sun alt. | Sun az. |
|---|---|---|---|---|
| C1 — Partial begins | 17:31 UTC | 19:31 | +22.2° | 269.9° |
| Maximum | 18:29 UTC | 20:29 | +11.8° | 279.4° |
| C4 — Partial ends | 19:22 UTC | 21:22 | +2.4° | 288.2° |
Look toward WNW (288.2°)
Azimuth at C4
288.2° WNW
Sun altitude at C4
2.42°
Terrain horizon
0.53°
Sun−terrain margin
+11.25°
No named peaks within 25 km (or not yet cached).
P25 — clearer days
0%
Median cloud cover
37%
P75 — cloudier days
52%
Source: ERA5 (ECMWF), 10-year average at the eclipse hour.
Yes, partial eclipse: the Sun will be 99.9% covered at maximum from Ribeira.
Maximum occurs at 20:29 local time (18:29 UTC) in Ribeira.
Look West (azimuth 279°); the Sun will be 12° above the horizon at maximum from Ribeira.
Ribeira is a good option (score 70/100): all eclipse phases are visible, though not the regional optimum.
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.
For the August 12 eclipse. Recommended stay: Aug 10–14, 2026.
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