Solar & Daylight Data
Sun Path: Pasig City, Philippines
How to research sun path for a specific site in Pasig City — the controlling authority, source documents, and checks to run before you rely on a number.
Last updated August 31, 2026 · Location data from the [GeoNames PH dump](https://download.geonames.org/export/dump/PH.zip) (CC BY 4.0, snapshot 2026-08-31, GeoNames ID 7290466). Regulatory starting point: [Department of Public Works and Highways and the local Office of the Building Official](https://www.dpwh.gov.ph/dpwh/references/laws_codes_orders/PD1096). Figures are illustrative — verify against the current locally adopted edition for the site. Solar-method context: [NOAA Solar Calculation Details](https://gml.noaa.gov/grad/solcalc/calcdetails.html); the Harth monthly table uses a simpler declination and geometric-daylight approximation whose stated limitations must be retained.
Direct answer
For Pasig City at 14.5869, 121.0614, the declination-only solar-noon altitude is approximately 81.2° at the June solstice, 75.4° at an equinox and 52.0° 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 7290466 in administrative area NCR, at 14.5869, 121.0614; 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 52.0° 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 Pasig City?
Pasig City is represented here at approximately 14.5869, 121.0614 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?
- Fix the surveyed site and local time basis.
- Select an authoritative weather source or a named solar-position algorithm.
- Record period, percentile or scenario and units.
- Test sensitivity to elevation, exposure, urban form and horizon.
- Save the source file, retrieval date and checker in the model record.
| Input | Project-specific evidence | QA question |
|---|---|---|
| Site | surveyed coordinates, elevation and horizon | Does the point represent the building? |
| Weather/solar method | named dataset, algorithm, period and time basis | Are station, time zone and units explicit? |
| Design scenario | current and future scenario agreed by the team | Is an average being mistaken for an extreme? |
| Compliance | adopted local document and edition | Was applicability confirmed with the authority? |
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 Pasig City 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.
Pasig City monthly solar geometry check for sun path
| Representative date | Declination | Solar-noon altitude | Geometric daylight | Noon shadow / height |
|---|---|---|---|---|
| 21 January | -20.14° | 55.28° | 11.270 h | 0.693 |
| 21 February | -11.23° | 64.19° | 11.605 h | 0.484 |
| 21 March | -0.40° | 75.01° | 11.986 h | 0.268 |
| 21 April | +11.58° | 86.99° | 12.408 h | 0.053 |
| 21 May | +20.14° | 84.45° | 12.730 h | 0.097 |
| 21 June | +23.45° | 81.14° | 12.864 h | 0.156 |
| 21 July | +20.44° | 84.15° | 12.742 h | 0.103 |
| 21 August | +11.75° | 87.17° | 12.414 h | 0.049 |
| 21 September | -0.20° | 75.21° | 11.993 h | 0.264 |
| 21 October | -11.75° | 63.66° | 11.586 h | 0.495 |
| 21 November | -20.44° | 54.97° | 11.258 h | 0.701 |
| 21 December | -23.45° | 51.96° | 11.136 h | 0.782 |
Pasig City solar-geometry fingerprint at 14.5869, 121.0614
- Pasig City, 21 January: declination -20.14°, noon altitude 55.28°, zenith 34.72°, geometric daylight 11.270 hours, and vertical-object noon shadow ratio 0.693.
- Pasig City, 21 February: declination -11.23°, noon altitude 64.19°, zenith 25.81°, geometric daylight 11.605 hours, and vertical-object noon shadow ratio 0.484.
- Pasig City, 21 March: declination -0.40°, noon altitude 75.01°, zenith 14.99°, geometric daylight 11.986 hours, and vertical-object noon shadow ratio 0.268.
- Pasig City, 21 April: declination +11.58°, noon altitude 86.99°, zenith 3.01°, geometric daylight 12.408 hours, and vertical-object noon shadow ratio 0.053.
- Pasig City, 21 May: declination +20.14°, noon altitude 84.45°, zenith 5.55°, geometric daylight 12.730 hours, and vertical-object noon shadow ratio 0.097.
- Pasig City, 21 June: declination +23.45°, noon altitude 81.14°, zenith 8.86°, geometric daylight 12.864 hours, and vertical-object noon shadow ratio 0.156.
- Pasig City, 21 July: declination +20.44°, noon altitude 84.15°, zenith 5.85°, geometric daylight 12.742 hours, and vertical-object noon shadow ratio 0.103.
- Pasig City, 21 August: declination +11.75°, noon altitude 87.17°, zenith 2.83°, geometric daylight 12.414 hours, and vertical-object noon shadow ratio 0.049.
- Pasig City, 21 September: declination -0.20°, noon altitude 75.21°, zenith 14.79°, geometric daylight 11.993 hours, and vertical-object noon shadow ratio 0.264.
- Pasig City, 21 October: declination -11.75°, noon altitude 63.66°, zenith 26.34°, geometric daylight 11.586 hours, and vertical-object noon shadow ratio 0.495.
- Pasig City, 21 November: declination -20.44°, noon altitude 54.97°, zenith 35.03°, geometric daylight 11.258 hours, and vertical-object noon shadow ratio 0.701.
- Pasig City, 21 December: declination -23.45°, noon altitude 51.96°, zenith 38.04°, geometric daylight 11.136 hours, and vertical-object noon shadow ratio 0.782.
Harth computed the Pasig City fingerprint for latitude 14.5869° with the Cooper declination approximation, 90° - |latitude - declination| at solar noon, centre-to-centre sunrise hour angle and 1 / tan(altitude) shadow ratio. Longitude 121.0614° 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
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- Sun Path: Quezon City, Philippines
- All solar & daylight data guidance for Philippines
Sources and method
Location data from the GeoNames PH dump (CC BY 4.0, snapshot 2026-08-31, GeoNames ID 7290466). 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
Frequently asked questions
What does the sun path record for Pasig City establish?
The sun path record for Pasig City establishes a reproducible discovery point at 14.5869, 121.0614 (GeoNames ID 7290466, administrative area NCR) and a Philippines source path. It does not establish a final project value, approval or parcel decision.
What must be replaced before using this sun path workflow for a project in Pasig City?
For the sun path record in Pasig City, replace the 14.5869, 121.0614 city reference with the surveyed site or parcel, identify the competent local authority, and verify the current documents under National Building Code of the Philippines and its referral codes. Record the edition, retrieval date, units, assumptions and named checker before relying on the result.
Related pages
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Sun path for Paranaque City, Philippines: solar-noon altitude 81.0° June, 75.5° equinox, 52.1° December; 11.1–12.9 h daylight; 12-month geometry table.
- Sun Path: Paraparaumu, New Zealand
Sun path for Paraparaumu, New Zealand: solar-noon altitude 25.6° June, 49.1° equinox, 72.5° December; 9.1–14.9 h daylight; 12-month geometry table.
- Sun Path: Pasay, Philippines
Sun path for Pasay, Philippines: solar-noon altitude 81.1° June, 75.5° equinox, 52.0° December; 11.1–12.9 h daylight; 12-month geometry table.
- Sun Path: Pasir Gudang, Malaysia
Sun path for Pasir Gudang, Malaysia: solar-noon altitude 68.0° June, 88.5° equinox, 65.1° December; 11.9–12.1 h daylight; 12-month geometry table.
- Sun Path: Pasir Mas, Malaysia
Sun path for Pasir Mas, Malaysia: solar-noon altitude 72.6° June, 84.0° equinox, 60.5° December; 11.6–12.4 h daylight; 12-month geometry table.
- Sun Path: Pasir Ris New Town, Singapore
Sun path for Pasir Ris New Town, Singapore: solar-noon altitude 67.9° June, 88.6° equinox, 65.2° December; 11.9–12.1 h daylight; 12-month geometry table.