Sun Path: Ipswich, UK

Direct answer

For Ipswich at 52.0592, 1.1555, the declination-only solar-noon altitude is approximately 61.4° at the June solstice, 37.9° at an equinox and 14.5° 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 2646057 in administrative area ENG, at 52.0592, 1.1555; replace it with the surveyed parcel point before relying on the result. As a transparent geometry check, declination-only solar-noon altitude is about 61.4° at the June solstice, 37.9° at an equinox and 14.5° at the December solstice. Representative 21st-day geometry ranges from about 7.5 hours in December to 16.5 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 Ipswich?

Ipswich is represented here at approximately 52.0592, 1.1555 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 Ipswich 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.

Ipswich monthly solar geometry check for sun path

Ipswich solar-geometry fingerprint at 52.0592, 1.1555

• Ipswich, 21 January: declination -20.14°, noon altitude 17.80°, zenith 72.20°, geometric daylight 8.259 hours, and vertical-object noon shadow ratio 3.114.
• Ipswich, 21 February: declination -11.23°, noon altitude 26.71°, zenith 63.29°, geometric daylight 10.033 hours, and vertical-object noon shadow ratio 1.987.
• Ipswich, 21 March: declination -0.40°, noon altitude 37.54°, zenith 52.46°, geometric daylight 11.931 hours, and vertical-object noon shadow ratio 1.301.
• Ipswich, 21 April: declination +11.58°, noon altitude 49.52°, zenith 40.48°, geometric daylight 14.032 hours, and vertical-object noon shadow ratio 0.853.
• Ipswich, 21 May: declination +20.14°, noon altitude 58.08°, zenith 31.92°, geometric daylight 15.741 hours, and vertical-object noon shadow ratio 0.623.
• Ipswich, 21 June: declination +23.45°, noon altitude 61.39°, zenith 28.61°, geometric daylight 16.507 hours, and vertical-object noon shadow ratio 0.545.
• Ipswich, 21 July: declination +20.44°, noon altitude 58.38°, zenith 31.62°, geometric daylight 15.808 hours, and vertical-object noon shadow ratio 0.616.
• Ipswich, 21 August: declination +11.75°, noon altitude 49.69°, zenith 40.31°, geometric daylight 14.064 hours, and vertical-object noon shadow ratio 0.848.
• Ipswich, 21 September: declination -0.20°, noon altitude 37.74°, zenith 52.26°, geometric daylight 11.965 hours, and vertical-object noon shadow ratio 1.292.
• Ipswich, 21 October: declination -11.75°, noon altitude 26.19°, zenith 63.81°, geometric daylight 9.936 hours, and vertical-object noon shadow ratio 2.033.
• Ipswich, 21 November: declination -20.44°, noon altitude 17.50°, zenith 72.50°, geometric daylight 8.192 hours, and vertical-object noon shadow ratio 3.172.
• Ipswich, 21 December: declination -23.45°, noon altitude 14.49°, zenith 75.51°, geometric daylight 7.493 hours, and vertical-object noon shadow ratio 3.869.

Harth computed the Ipswich fingerprint for latitude 52.0592° with the Cooper declination approximation, 90° - |latitude - declination| at solar noon, centre-to-centre sunrise hour angle and 1 / tan(altitude) shadow ratio. Longitude 1.1555° 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: Southend-on-Sea, UK
• Sun Path: Bexley, UK
• Sun Path: Barking, UK
• Sun Path: Islington, UK
• All solar & daylight data guidance for United Kingdom

Sources and method

Location data from the GeoNames GB dump (CC BY 4.0, snapshot 2026-08-31, GeoNames ID 2646057). Regulatory starting point: UK and devolved building-control authorities. 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

• gov.uk

• gml.noaa.gov