Sun Path: Bida, Nigeria

Direct answer

For Bida at 9.0804, 6.0099, the declination-only solar-noon altitude is approximately 75.6° at the June solstice, 80.9° at an equinox and 57.5° 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 2347209 in administrative area 31, at 9.0804, 6.0099; replace it with the surveyed parcel point before relying on the result. As a transparent geometry check, declination-only solar-noon altitude is about 75.6° at the June solstice, 80.9° at an equinox and 57.5° at the December solstice. Representative 21st-day geometry ranges from about 11.5 hours in December to 12.5 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 Bida?

Bida is represented here at approximately 9.0804, 6.0099 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 Bida 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.

Bida monthly solar geometry check for sun path

Bida solar-geometry fingerprint at 9.0804, 6.0099

• Bida, 21 January: declination -20.14°, noon altitude 60.78°, zenith 29.22°, geometric daylight 11.552 hours, and vertical-object noon shadow ratio 0.559.
• Bida, 21 February: declination -11.23°, noon altitude 69.69°, zenith 20.31°, geometric daylight 11.758 hours, and vertical-object noon shadow ratio 0.370.
• Bida, 21 March: declination -0.40°, noon altitude 80.52°, zenith 9.48°, geometric daylight 11.991 hours, and vertical-object noon shadow ratio 0.167.
• Bida, 21 April: declination +11.58°, noon altitude 87.50°, zenith 2.50°, geometric daylight 12.250 hours, and vertical-object noon shadow ratio 0.044.
• Bida, 21 May: declination +20.14°, noon altitude 78.94°, zenith 11.06°, geometric daylight 12.448 hours, and vertical-object noon shadow ratio 0.195.
• Bida, 21 June: declination +23.45°, noon altitude 75.63°, zenith 14.37°, geometric daylight 12.530 hours, and vertical-object noon shadow ratio 0.256.
• Bida, 21 July: declination +20.44°, noon altitude 78.64°, zenith 11.36°, geometric daylight 12.455 hours, and vertical-object noon shadow ratio 0.201.
• Bida, 21 August: declination +11.75°, noon altitude 87.33°, zenith 2.67°, geometric daylight 12.254 hours, and vertical-object noon shadow ratio 0.047.
• Bida, 21 September: declination -0.20°, noon altitude 80.72°, zenith 9.28°, geometric daylight 11.996 hours, and vertical-object noon shadow ratio 0.163.
• Bida, 21 October: declination -11.75°, noon altitude 69.17°, zenith 20.83°, geometric daylight 11.746 hours, and vertical-object noon shadow ratio 0.381.
• Bida, 21 November: declination -20.44°, noon altitude 60.48°, zenith 29.52°, geometric daylight 11.545 hours, and vertical-object noon shadow ratio 0.566.
• Bida, 21 December: declination -23.45°, noon altitude 57.47°, zenith 32.53°, geometric daylight 11.470 hours, and vertical-object noon shadow ratio 0.638.

Harth computed the Bida fingerprint for latitude 9.0804° with the Cooper declination approximation, 90° - |latitude - declination| at solar noon, centre-to-centre sunrise hour angle and 1 / tan(altitude) shadow ratio. Longitude 6.0099° 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: Minna, Nigeria
• Sun Path: Abuja, Nigeria
• Sun Path: Okene, Nigeria
• Sun Path: Ikare, Nigeria
• All solar & daylight data guidance for Nigeria
• Climate Design Data: Bida, Nigeria

Sources and method

Location data from the GeoNames NG dump (CC BY 4.0, snapshot 2026-08-31, GeoNames ID 2347209). Regulatory starting point: Federal Ministry of Housing and Urban Development and the applicable state 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

• fmhud.gov.ng

• gml.noaa.gov