Solar & Daylight Data
Daylight & Orientation: Adelaide, Australia
How to research daylight & orientation for a specific site in Adelaide — the controlling authority, source documents, and checks to run before you rely on a number.
Last updated September 2, 2026 · Location data from the [GeoNames AU dump](https://download.geonames.org/export/dump/AU.zip) (CC BY 4.0, snapshot 2026-08-31, GeoNames ID 2078025). Regulatory starting point: [Australian Building Codes Board and the applicable state or territory authority](https://ncc.abcb.gov.au/). 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. Project-date refinement reference: [NREL Solar Position Algorithm](https://midcdmz.nrel.gov/spa/).
Direct answer
For Adelaide at -34.9287, 138.5986, the declination-only solar-noon altitude is approximately 31.6° at the June solstice, 55.1° at an equinox and 78.5° 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 2078025 in administrative area 05, at -34.9287, 138.5986; replace it with the surveyed parcel point before relying on the result. As a transparent geometry check, declination-only solar-noon altitude is about 31.6° at the June solstice, 55.1° at an equinox and 78.5° at the December solstice. Representative 21st-day geometry ranges from about 9.6 hours in June to 14.4 hours in December; 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 daylight and building orientation record.
Prepared by Harth · Topic-specific calculated asset and fresh SERP brief passed editorial screening; page remains noindex pending the independent content, evidence, similarity and link gates · Published 2026-08-26 · Updated 2026-09-02.
What must be verified for Adelaide?
Adelaide is represented here at approximately -34.9287, 138.5986 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 daylight and building orientation 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 daylight-workflow page is a project-starting worksheet, not a design value or approval. The controlling authority and qualified professionals for the Adelaide site remain authoritative.
Adelaide monthly daylight-orientation ledger
| Representative date | Geometric daylight | Solar sunrise | Solar sunset | Sunrise hour angle | Noon bearing | Change from prior month |
|---|---|---|---|---|---|---|
| 21 January | 13.978 h | 05.01 | 18.99 | 104.84° | 0.0° | -0.373 h |
| 21 February | 13.062 h | 05.47 | 18.53 | 97.97° | 0.0° | -0.916 h |
| 21 March | 12.038 h | 05.98 | 18.02 | 90.28° | 0.0° | -1.025 h |
| 21 April | 10.903 h | 06.55 | 17.45 | 81.77° | 0.0° | -1.134 h |
| 21 May | 10.022 h | 06.99 | 17.01 | 75.16° | 0.0° | -0.882 h |
| 21 June | 9.649 h | 07.18 | 16.82 | 72.37° | 0.0° | -0.373 h |
| 21 July | 9.988 h | 07.01 | 16.99 | 74.91° | 0.0° | +0.339 h |
| 21 August | 10.886 h | 06.56 | 17.44 | 81.64° | 0.0° | +0.898 h |
| 21 September | 12.019 h | 05.99 | 18.01 | 90.14° | 0.0° | +1.133 h |
| 21 October | 13.114 h | 05.44 | 18.56 | 98.36° | 0.0° | +1.095 h |
| 21 November | 14.012 h | 04.99 | 19.01 | 105.09° | 0.0° | +0.898 h |
| 21 December | 14.351 h | 04.82 | 19.18 | 107.63° | 0.0° | +0.339 h |
Orientation checks prompted by the Adelaide ledger
The representative daylight span runs from 9.649 hours on 21 June to 14.351 hours on 21 December. Solar sunrise and sunset are expressed in apparent solar time, not a time-zone clock. The noon-bearing column is a true-north azimuth screen and becomes unstable when the sun passes close to zenith.
For Adelaide at -34.9287°, 138.5986°, test each occupied facade against the actual horizon, adjacent buildings, glazing, room depth and target illuminance. This ledger describes geometric availability only; it does not estimate irradiance, daylight autonomy, glare or energy. Refine project-date positions with the NREL SPA.
Where can you explore related guidance?
- Explore all solar data guidance
- Sun Path: Adelaide, Australia
- Solar Altitude & Azimuth: Adelaide, Australia
- Solar Shading Design: Adelaide, Australia
- Sun Path: Gold Coast, Australia
- Solar Altitude & Azimuth: Gold Coast, Australia
- Solar Shading Design: Gold Coast, Australia
- Daylight & Orientation: Gold Coast, Australia
- Sun Path: Newcastle, Australia
- Solar Altitude & Azimuth: Newcastle, Australia
- Solar Shading Design: Newcastle, Australia
- Daylight & Orientation: Newcastle, Australia
- Sun Path: Sunshine Coast, Australia
- Solar Altitude & Azimuth: Sunshine Coast, Australia
- Solar Shading Design: Sunshine Coast, Australia
- Daylight & Orientation: Sunshine Coast, Australia
- Sun Path: Canberra, Australia
- Solar Altitude & Azimuth: Canberra, Australia
- Solar Shading Design: Canberra, Australia
- Daylight & Orientation: Canberra, Australia
- Sun Path: Central Coast, Australia
- Solar Altitude & Azimuth: Central Coast, Australia
- Solar Shading Design: Central Coast, Australia
- Daylight & Orientation: Central Coast, Australia
- Sun Path: Logan City, Australia
- Solar Altitude & Azimuth: Logan City, Australia
- Solar Shading Design: Logan City, Australia
- Daylight & Orientation: Logan City, Australia
- Sun Path: Geelong, Australia
- Solar Altitude & Azimuth: Geelong, Australia
- Solar Shading Design: Geelong, Australia
- Daylight & Orientation: Geelong, Australia
- Sun Path: Wollongong, Australia
- Solar Altitude & Azimuth: Wollongong, Australia
- Solar Shading Design: Wollongong, Australia
- Daylight & Orientation: Wollongong, Australia
- Sun Path: Hobart, Australia
- Solar Altitude & Azimuth: Hobart, Australia
- Solar Shading Design: Hobart, Australia
- Daylight & Orientation: Hobart, Australia
- Sun Path: Townsville, Australia
- Solar Altitude & Azimuth: Townsville, Australia
- Solar Shading Design: Townsville, Australia
- Daylight & Orientation: Townsville, Australia
- Sun Path: Cairns, Australia
- Solar Altitude & Azimuth: Cairns, Australia
- Solar Shading Design: Cairns, Australia
- Daylight & Orientation: Cairns, Australia
- Sun Path: Toowoomba, Australia
- Solar Altitude & Azimuth: Toowoomba, Australia
- Solar Shading Design: Toowoomba, Australia
- Daylight & Orientation: Toowoomba, Australia
- Sun Path: Darwin, Australia
- Solar Altitude & Azimuth: Darwin, Australia
- Solar Shading Design: Darwin, Australia
- Daylight & Orientation: Darwin, Australia
- Sun Path: City of Port Phillip, Australia
- Solar Altitude & Azimuth: City of Port Phillip, Australia
- Solar Shading Design: City of Port Phillip, Australia
- Sun Path: Ballarat, Australia
- Solar Altitude & Azimuth: Ballarat, Australia
- Solar Shading Design: Ballarat, Australia
- Daylight & Orientation: Ballarat, Australia
- Sun Path: Mandurah, Australia
- Solar Altitude & Azimuth: Mandurah, Australia
- Solar Shading Design: Mandurah, Australia
- Daylight & Orientation: Mandurah, Australia
- Sun Path: Bendigo, Australia
- Solar Altitude & Azimuth: Bendigo, Australia
- Solar Shading Design: Bendigo, Australia
- Daylight & Orientation: Bendigo, Australia
- Sun Path: Caloundra, Australia
- Solar Altitude & Azimuth: Caloundra, Australia
- Solar Shading Design: Caloundra, Australia
- Daylight & Orientation: Caloundra, Australia
- Sun Path: Launceston, Australia
- Solar Altitude & Azimuth: Launceston, Australia
- Solar Shading Design: Launceston, Australia
- Daylight & Orientation: Launceston, Australia
- Sun Path: Maitland, Australia
- Solar Altitude & Azimuth: Maitland, Australia
- Solar Shading Design: Maitland, Australia
- Daylight & Orientation: Maitland, Australia
- Sun Path: Tuggeranong, Australia
- Solar Altitude & Azimuth: Tuggeranong, Australia
- Solar Shading Design: Tuggeranong, Australia
- Daylight & Orientation: Tuggeranong, Australia
- Sun Path: Mackay, Australia
- Solar Altitude & Azimuth: Mackay, Australia
- Solar Shading Design: Mackay, Australia
- Daylight & Orientation: Mackay, Australia
- Sun Path: Rockhampton, Australia
- Solar Altitude & Azimuth: Rockhampton, Australia
- Solar Shading Design: Rockhampton, Australia
- Daylight & Orientation: Rockhampton, Australia
- Sun Path: Coffs Harbour, Australia
- Solar Altitude & Azimuth: Coffs Harbour, Australia
- Solar Shading Design: Coffs Harbour, Australia
- Daylight & Orientation: Coffs Harbour, Australia
- Sun Path: Blue Mountains, Australia
- Solar Altitude & Azimuth: Blue Mountains, Australia
- Solar Shading Design: Blue Mountains, Australia
- Daylight & Orientation: Blue Mountains, Australia
- Sun Path: Bunbury, Australia
- Solar Altitude & Azimuth: Bunbury, Australia
- Solar Shading Design: Bunbury, Australia
- Daylight & Orientation: Bunbury, Australia
- Sun Path: Bundaberg, Australia
- Solar Altitude & Azimuth: Bundaberg, Australia
- Solar Shading Design: Bundaberg, Australia
- Daylight & Orientation: Bundaberg, Australia
- Sun Path: Adelaide Hills, Australia
- Solar Altitude & Azimuth: Adelaide Hills, Australia
- Solar Shading Design: Adelaide Hills, Australia
- Daylight & Orientation: Adelaide Hills, Australia
- Sun Path: Point Cook, Australia
- Solar Altitude & Azimuth: Point Cook, Australia
- Solar Shading Design: Point Cook, Australia
- Daylight & Orientation: Point Cook, Australia
- Sun Path: Craigieburn, Australia
- Solar Altitude & Azimuth: Craigieburn, Australia
- Solar Shading Design: Craigieburn, Australia
- Daylight & Orientation: Craigieburn, Australia
- Sun Path: Pittwater, Australia
- Solar Altitude & Azimuth: Pittwater, Australia
- Solar Shading Design: Pittwater, Australia
- Daylight & Orientation: Pittwater, Australia
- Sun Path: Melbourne City Centre, Australia
- Solar Altitude & Azimuth: Melbourne City Centre, Australia
- Solar Shading Design: Melbourne City Centre, Australia
- Sun Path: Tarneit, Australia
- Solar Shading Design: Tarneit, Australia
- Daylight & Orientation: Tarneit, Australia
- Sun Path: Pakenham, Australia
- Solar Altitude & Azimuth: Pakenham, Australia
- Solar Shading Design: Pakenham, Australia
- Daylight & Orientation: Pakenham, Australia
- Sun Path: Hervey Bay, Australia
- Solar Altitude & Azimuth: Hervey Bay, Australia
- Solar Shading Design: Hervey Bay, Australia
- Daylight & Orientation: Hervey Bay, Australia
- Sun Path: Port Macquarie, Australia
- Solar Altitude & Azimuth: Port Macquarie, Australia
- Solar Shading Design: Port Macquarie, Australia
- Daylight & Orientation: Port Macquarie, Australia
- Sun Path: Reservoir, Australia
- Solar Altitude & Azimuth: Reservoir, Australia
- Solar Shading Design: Reservoir, Australia
- Daylight & Orientation: Reservoir, Australia
- Sun Path: Berwick, Australia
- Solar Altitude & Azimuth: Berwick, Australia
- Solar Shading Design: Berwick, Australia
- Daylight & Orientation: Berwick, Australia
- Sun Path: Werribee, Australia
- Solar Altitude & Azimuth: Werribee, Australia
- Solar Shading Design: Werribee, Australia
- Daylight & Orientation: Werribee, Australia
- Sun Path: Blacktown, Australia
- Solar Altitude & Azimuth: Blacktown, Australia
- Solar Shading Design: Blacktown, Australia
- Daylight & Orientation: Blacktown, Australia
- Sun Path: Sydney, Australia
- Solar Altitude & Azimuth: Sydney, Australia
- Solar Shading Design: Sydney, Australia
- Daylight & Orientation: Sydney, Australia
- Sun Path: Melbourne, Australia
- Solar Shading Design: Melbourne, Australia
- Daylight & Orientation: Melbourne, Australia
- Sun Path: Brisbane, Australia
- Solar Altitude & Azimuth: Brisbane, Australia
- Solar Shading Design: Brisbane, Australia
- Daylight & Orientation: Brisbane, Australia
- Sun Path: Perth, Australia
- Solar Altitude & Azimuth: Perth, Australia
- Solar Shading Design: Perth, Australia
- Daylight & Orientation: Perth, Australia
- All solar & daylight data guidance for Australia
Sources and method
Location data from the GeoNames AU dump (CC BY 4.0, snapshot 2026-08-31, GeoNames ID 2078025). Regulatory starting point: Australian Building Codes Board and the applicable state or territory 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. Project-date refinement reference: NREL Solar Position Algorithm.
Source links
Frequently asked questions
What does the daylight and building orientation record for Adelaide establish?
The daylight and building orientation record for Adelaide establishes a reproducible discovery point at -34.9287, 138.5986 (GeoNames ID 2078025, administrative area 05) and a Australia source path. It does not establish a final project value, approval or parcel decision.
What must be replaced before using this daylight and building orientation workflow for a project in Adelaide?
For the daylight and building orientation record in Adelaide, replace the -34.9287, 138.5986 city reference with the surveyed site or parcel, identify the competent local authority, and verify the current documents under National Construction Code plus state and territory variations. Record the edition, retrieval date, units, assumptions and named checker before relying on the result.
Related pages
- Solar & Daylight Data: Canada
Canada solar & daylight data for architects: 175 city pages with reproducible location records and source paths.
- Daylight & Orientation: Aberdeen, Hong Kong
Daylight and orientation for Aberdeen, Hong Kong: geometric day length 10.6–13.4 h, solar sunrise/sunset and noon bearing by month; June noon altitude 88.8°.
- Daylight & Orientation: Abu Dhabi, UAE
Daylight and orientation for Abu Dhabi, UAE: geometric day length 10.5–13.5 h, solar sunrise/sunset and noon bearing by month; June noon altitude 89.0°.
- Daylight & Orientation: Adelaide Hills, Australia
Daylight for Adelaide Hills, Australia: day length 9.7–14.3 h, sunrise/sunset and noon bearing by month; June noon altitude 31.7°.
- Daylight & Orientation: Agra, India
Daylight and orientation for Agra, India: geometric day length 10.3–13.7 h, solar sunrise/sunset and noon bearing by month; June noon altitude 86.3°.
- Daylight & Orientation: Ahmedabad, India
Daylight and orientation for Ahmedabad, India: geometric day length 10.6–13.4 h, solar sunrise/sunset and noon bearing by month; June noon altitude 89.6°.