Sun Path: Valenzuela, Philippines

Direct answer

For Valenzuela at 14.7000, 120.9667, the declination-only solar-noon altitude is approximately 81.3° at the June solstice, 75.3° 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 1680102 in administrative area NCR, at 14.7000, 120.9667; replace it with the surveyed parcel point before relying on the result. As a transparent geometry check, declination-only solar-noon altitude is about 81.3° at the June solstice, 75.3° 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 Valenzuela?

Valenzuela is represented here at approximately 14.7000, 120.9667 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 Valenzuela 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.

Valenzuela monthly solar geometry check for sun path

Valenzuela solar-geometry fingerprint at 14.7000, 120.9667

• Valenzuela, 21 January: declination -20.14°, noon altitude 55.16°, zenith 34.84°, geometric daylight 11.264 hours, and vertical-object noon shadow ratio 0.696.
• Valenzuela, 21 February: declination -11.23°, noon altitude 64.07°, zenith 25.93°, geometric daylight 11.602 hours, and vertical-object noon shadow ratio 0.486.
• Valenzuela, 21 March: declination -0.40°, noon altitude 74.90°, zenith 15.10°, geometric daylight 11.986 hours, and vertical-object noon shadow ratio 0.270.
• Valenzuela, 21 April: declination +11.58°, noon altitude 86.88°, zenith 3.12°, geometric daylight 12.411 hours, and vertical-object noon shadow ratio 0.055.
• Valenzuela, 21 May: declination +20.14°, noon altitude 84.56°, zenith 5.44°, geometric daylight 12.736 hours, and vertical-object noon shadow ratio 0.095.
• Valenzuela, 21 June: declination +23.45°, noon altitude 81.25°, zenith 8.75°, geometric daylight 12.871 hours, and vertical-object noon shadow ratio 0.154.
• Valenzuela, 21 July: declination +20.44°, noon altitude 84.26°, zenith 5.74°, geometric daylight 12.748 hours, and vertical-object noon shadow ratio 0.101.
• Valenzuela, 21 August: declination +11.75°, noon altitude 87.05°, zenith 2.95°, geometric daylight 12.417 hours, and vertical-object noon shadow ratio 0.051.
• Valenzuela, 21 September: declination -0.20°, noon altitude 75.10°, zenith 14.90°, geometric daylight 11.993 hours, and vertical-object noon shadow ratio 0.266.
• Valenzuela, 21 October: declination -11.75°, noon altitude 63.55°, zenith 26.45°, geometric daylight 11.583 hours, and vertical-object noon shadow ratio 0.498.
• Valenzuela, 21 November: declination -20.44°, noon altitude 54.86°, zenith 35.14°, geometric daylight 11.252 hours, and vertical-object noon shadow ratio 0.704.
• Valenzuela, 21 December: declination -23.45°, noon altitude 51.85°, zenith 38.15°, geometric daylight 11.129 hours, and vertical-object noon shadow ratio 0.786.

Harth computed the Valenzuela fingerprint for latitude 14.7000° with the Cooper declination approximation, 90° - |latitude - declination| at solar noon, centre-to-centre sunrise hour angle and 1 / tan(altitude) shadow ratio. Longitude 120.9667° 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: Malabon, Philippines
• Sun Path: Caloocan, Philippines
• Sun Path: Manila, Philippines
• Sun Path: Quezon City, Philippines
• All solar & daylight data guidance for Philippines
• Climate Design Data: Valenzuela, Philippines

Sources and method

Location data from the GeoNames PH dump (CC BY 4.0, snapshot 2026-08-31, GeoNames ID 1680102). 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