Sun Path: Antipolo, Philippines

Direct answer

For Antipolo at 14.6258, 121.1225, the declination-only solar-noon altitude is approximately 81.2° at the June solstice, 75.4° at an equinox and 51.9° at the December solstice. Refine these geometry checks with the project date, civil time, facade azimuth, terrain and local horizon. The reproducible location record is GeoNames ID 1730501 in administrative area 40, at 14.6258, 121.1225; replace it with the surveyed parcel point before relying on the result. As a transparent geometry check, declination-only solar-noon altitude is about 81.2° at the June solstice, 75.4° at an equinox and 51.9° at the December solstice. Representative 21st-day geometry ranges from about 11.1 hours in December to 12.9 hours in June; this excludes atmospheric refraction, terrain and obstruction effects. The cited national authority is a discovery starting point; current local documents and a named qualified reviewer control project use of this sun path record.

Prepared by Harth · Prepared from the cited location and country sources; local project inputs remain unreviewed · Published 2026-08-26 · Updated 2026-08-31.

What must be verified for Antipolo?

Antipolo is represented here at approximately 14.6258, 121.1225 for discovery and workflow planning. A project address, parcel, elevation, exposure, authority, and submission date must replace that city-centre reference before design use.

How should sun path be established?

1. Fix the surveyed site and local time basis.
2. Select an authoritative weather source or a named solar-position algorithm.
3. Record period, percentile or scenario and units.
4. Test sensitivity to elevation, exposure, urban form and horizon.
5. Save the source file, retrieval date and checker in the model record.

What are the limits of this worksheet?

This sun-path-workflow page is a project-starting worksheet, not a design value or approval. The controlling authority and qualified professionals for the Antipolo site remain authoritative.

Which related searches does this primary location record cover?

This primary route consolidates the location evidence needed for Sun Path, Solar Altitude & Azimuth, Solar Shading Design, Daylight & Orientation. A narrower route should be released only when it adds a materially different official source, calculation, process, threshold or worked example.

Antipolo monthly solar geometry check for sun path

Antipolo solar-geometry fingerprint at 14.6258, 121.1225

• Antipolo, 21 January: declination -20.14°, noon altitude 55.24°, zenith 34.76°, geometric daylight 11.268 hours, and vertical-object noon shadow ratio 0.694.
• Antipolo, 21 February: declination -11.23°, noon altitude 64.15°, zenith 25.85°, geometric daylight 11.604 hours, and vertical-object noon shadow ratio 0.485.
• Antipolo, 21 March: declination -0.40°, noon altitude 74.97°, zenith 15.03°, geometric daylight 11.986 hours, and vertical-object noon shadow ratio 0.268.
• Antipolo, 21 April: declination +11.58°, noon altitude 86.95°, zenith 3.05°, geometric daylight 12.409 hours, and vertical-object noon shadow ratio 0.053.
• Antipolo, 21 May: declination +20.14°, noon altitude 84.49°, zenith 5.51°, geometric daylight 12.732 hours, and vertical-object noon shadow ratio 0.097.
• Antipolo, 21 June: declination +23.45°, noon altitude 81.18°, zenith 8.82°, geometric daylight 12.867 hours, and vertical-object noon shadow ratio 0.155.
• Antipolo, 21 July: declination +20.44°, noon altitude 84.18°, zenith 5.82°, geometric daylight 12.744 hours, and vertical-object noon shadow ratio 0.102.
• Antipolo, 21 August: declination +11.75°, noon altitude 87.13°, zenith 2.87°, geometric daylight 12.415 hours, and vertical-object noon shadow ratio 0.050.
• Antipolo, 21 September: declination -0.20°, noon altitude 75.17°, zenith 14.83°, geometric daylight 11.993 hours, and vertical-object noon shadow ratio 0.265.
• Antipolo, 21 October: declination -11.75°, noon altitude 63.62°, zenith 26.38°, geometric daylight 11.585 hours, and vertical-object noon shadow ratio 0.496.
• Antipolo, 21 November: declination -20.44°, noon altitude 54.93°, zenith 35.07°, geometric daylight 11.256 hours, and vertical-object noon shadow ratio 0.702.
• Antipolo, 21 December: declination -23.45°, noon altitude 51.92°, zenith 38.08°, geometric daylight 11.133 hours, and vertical-object noon shadow ratio 0.783.

Harth computed the Antipolo fingerprint for latitude 14.6258° with the Cooper declination approximation, 90° - |latitude - declination| at solar noon, centre-to-centre sunrise hour angle and 1 / tan(altitude) shadow ratio. Longitude 121.1225° is retained for a later civil-time conversion; this screen does not perform that conversion. See NOAA's solar calculation details. Atmospheric refraction, terrain, facade azimuth and obstructions remain outside this first-pass comparison.

Where can you explore related guidance?

• Explore all solar data guidance
• Sun Path: Pasig City, Philippines
• Sun Path: Quezon City, Philippines
• Sun Path: Mandaluyong City, Philippines
• Sun Path: Mandaluyong, Philippines
• All solar & daylight data guidance for Philippines
• Climate Design Data: Antipolo, Philippines

Sources and method

Location data from the GeoNames PH dump (CC BY 4.0, snapshot 2026-08-31, GeoNames ID 1730501). Regulatory starting point: Department of Public Works and Highways and the local Office of the Building Official. Figures are illustrative — verify against the current locally adopted edition for the site. Solar-method context: NOAA Solar Calculation Details; the Harth monthly table uses a simpler declination and geometric-daylight approximation whose stated limitations must be retained.

Source links

• download.geonames.org

• dpwh.gov.ph

• gml.noaa.gov