Sun Path: Puchong, Malaysia

Direct answer

For Puchong at 3.0000, 101.6167, the declination-only solar-noon altitude is approximately 69.6° at the June solstice, 87.0° at an equinox and 63.6° 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 1749822 in administrative area 12, at 3.0000, 101.6167; replace it with the surveyed parcel point before relying on the result. As a transparent geometry check, declination-only solar-noon altitude is about 69.6° at the June solstice, 87.0° at an equinox and 63.6° at the December solstice. Representative 21st-day geometry ranges from about 11.8 hours in December to 12.2 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 Puchong?

Puchong is represented here at approximately 3.0000, 101.6167 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 Puchong 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.

Puchong monthly solar geometry check for sun path

Puchong solar-geometry fingerprint at 3.0000, 101.6167

• Puchong, 21 January: declination -20.14°, noon altitude 66.86°, zenith 23.14°, geometric daylight 11.853 hours, and vertical-object noon shadow ratio 0.427.
• Puchong, 21 February: declination -11.23°, noon altitude 75.77°, zenith 14.23°, geometric daylight 11.921 hours, and vertical-object noon shadow ratio 0.254.
• Puchong, 21 March: declination -0.40°, noon altitude 86.60°, zenith 3.40°, geometric daylight 11.997 hours, and vertical-object noon shadow ratio 0.059.
• Puchong, 21 April: declination +11.58°, noon altitude 81.42°, zenith 8.58°, geometric daylight 12.082 hours, and vertical-object noon shadow ratio 0.151.
• Puchong, 21 May: declination +20.14°, noon altitude 72.86°, zenith 17.14°, geometric daylight 12.147 hours, and vertical-object noon shadow ratio 0.308.
• Puchong, 21 June: declination +23.45°, noon altitude 69.55°, zenith 20.45°, geometric daylight 12.174 hours, and vertical-object noon shadow ratio 0.373.
• Puchong, 21 July: declination +20.44°, noon altitude 72.56°, zenith 17.44°, geometric daylight 12.149 hours, and vertical-object noon shadow ratio 0.314.
• Puchong, 21 August: declination +11.75°, noon altitude 81.25°, zenith 8.75°, geometric daylight 12.083 hours, and vertical-object noon shadow ratio 0.154.
• Puchong, 21 September: declination -0.20°, noon altitude 86.80°, zenith 3.20°, geometric daylight 11.999 hours, and vertical-object noon shadow ratio 0.056.
• Puchong, 21 October: declination -11.75°, noon altitude 75.25°, zenith 14.75°, geometric daylight 11.917 hours, and vertical-object noon shadow ratio 0.263.
• Puchong, 21 November: declination -20.44°, noon altitude 66.56°, zenith 23.44°, geometric daylight 11.851 hours, and vertical-object noon shadow ratio 0.434.
• Puchong, 21 December: declination -23.45°, noon altitude 63.55°, zenith 26.45°, geometric daylight 11.826 hours, and vertical-object noon shadow ratio 0.497.

Harth computed the Puchong fingerprint for latitude 3.0000° with the Cooper declination approximation, 90° - |latitude - declination| at solar noon, centre-to-centre sunrise hour angle and 1 / tan(altitude) shadow ratio. Longitude 101.6167° 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: Subang Jaya, Malaysia
• Sun Path: Petaling Jaya, Malaysia
• Sun Path: Shah Alam, Malaysia
• Sun Path: Kuala Lumpur, Malaysia
• All solar & daylight data guidance for Malaysia

Sources and method

Location data from the GeoNames MY dump (CC BY 4.0, snapshot 2026-08-31, GeoNames ID 1749822). Regulatory starting point: the applicable state and local authority. 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

• jkt.kpkt.gov.my

• gml.noaa.gov