# Solar & Daylight Data

> Sun-path, solar altitude and azimuth, and daylighting inputs for architects — how to read sun-path diagrams and use computed solar angles for orientation, shading, and passive design.

- Canonical: https://harth.build/resources/solar-data/

Where the sun sits in the sky at a given latitude, date, and time drives orientation, shading, glazing, and passive-solar strategy long before energy modeling begins. The pages below explain the geometry architects rely on — sun-path diagrams, solar altitude and azimuth, and solar noon — and show how the numbers are computed from latitude and solar declination.

Values here are calculated from standard solar-geometry equations and are approximate: they use mean declination and ignore atmospheric refraction, the equation of time, and local horizon obstructions. Use them to reason about orientation and shading at concept stage, then confirm with a full solar study or energy model as the design develops.

_Prepared by Harth as generated collection navigation. Evidence and review scope are recorded on each linked page._

## United States and general guides

- [Understanding Sun-Path Diagrams](https://harth.build/resources/solar-data/understanding-sun-path-diagrams.md)
- [Solar Altitude and Azimuth Explained](https://harth.build/resources/solar-data/solar-altitude-and-azimuth-explained.md)
- [Sun Path & Solar Angles for Phoenix, AZ](https://harth.build/resources/solar-data/sun-path-and-solar-angles-phoenix-az.md)
- [Sun Path & Solar Angles for Albuquerque, NM](https://harth.build/resources/solar-data/sun-path-and-solar-angles-albuquerque-nm.md)
- [Sun Path & Solar Angles for Anchorage, AK](https://harth.build/resources/solar-data/sun-path-and-solar-angles-anchorage-ak.md)
- [Sun Path & Solar Angles for Atlanta, GA](https://harth.build/resources/solar-data/sun-path-and-solar-angles-atlanta-ga.md)
- [Sun Path & Solar Angles for Austin, TX](https://harth.build/resources/solar-data/sun-path-and-solar-angles-austin-tx.md)
- [Sun Path & Solar Angles for Boston, MA](https://harth.build/resources/solar-data/sun-path-and-solar-angles-boston-ma.md)
- [Sun Path & Solar Angles for Chicago, IL](https://harth.build/resources/solar-data/sun-path-and-solar-angles-chicago-il.md)
- [Sun Path & Solar Angles for Dallas, TX](https://harth.build/resources/solar-data/sun-path-and-solar-angles-dallas-tx.md)
- [Sun Path & Solar Angles for Denver, CO](https://harth.build/resources/solar-data/sun-path-and-solar-angles-denver-co.md)
- [Sun Path & Solar Angles for Honolulu, HI](https://harth.build/resources/solar-data/sun-path-and-solar-angles-honolulu-hi.md)
- [Sun Path & Solar Angles for Houston, TX](https://harth.build/resources/solar-data/sun-path-and-solar-angles-houston-tx.md)
- [Sun Path & Solar Angles for Las Vegas, NV](https://harth.build/resources/solar-data/sun-path-and-solar-angles-las-vegas-nv.md)
- [Sun Path & Solar Angles for Los Angeles, CA](https://harth.build/resources/solar-data/sun-path-and-solar-angles-los-angeles-ca.md)
- [Sun Path & Solar Angles for Miami, FL](https://harth.build/resources/solar-data/sun-path-and-solar-angles-miami-fl.md)
- [Sun Path & Solar Angles for Minneapolis, MN](https://harth.build/resources/solar-data/sun-path-and-solar-angles-minneapolis-mn.md)
- [Sun Path & Solar Angles for New York, NY](https://harth.build/resources/solar-data/sun-path-and-solar-angles-new-york-ny.md)
- [Sun Path & Solar Angles for Portland, OR](https://harth.build/resources/solar-data/sun-path-and-solar-angles-portland-or.md)
- [Sun Path & Solar Angles for Salt Lake City, UT](https://harth.build/resources/solar-data/sun-path-and-solar-angles-salt-lake-city-ut.md)
- [Sun Path & Solar Angles for San Diego, CA](https://harth.build/resources/solar-data/sun-path-and-solar-angles-san-diego-ca.md)
- [Sun Path & Solar Angles for San Francisco, CA](https://harth.build/resources/solar-data/sun-path-and-solar-angles-san-francisco-ca.md)
- [Sun Path & Solar Angles for Seattle, WA](https://harth.build/resources/solar-data/sun-path-and-solar-angles-seattle-wa.md)
- [Sun Path & Solar Angles for Washington, DC](https://harth.build/resources/solar-data/sun-path-and-solar-angles-washington-dc.md)
- [Sun Path & Solar Angles for New Orleans, LA](https://harth.build/resources/solar-data/sun-path-and-solar-angles-new-orleans-la.md)
- [Sun Path & Solar Angles for Nashville, TN](https://harth.build/resources/solar-data/sun-path-and-solar-angles-nashville-tn.md)
- [Sun Path & Solar Angles for Tucson, AZ](https://harth.build/resources/solar-data/sun-path-and-solar-angles-tucson-az.md)
- [Sun Path & Solar Angles for Boise, ID](https://harth.build/resources/solar-data/sun-path-and-solar-angles-boise-id.md)

## By country

- [Solar & Daylight Data: Australia (180 pages)](https://harth.build/resources/solar-data/australia.md)
- [Solar & Daylight Data: Canada (180 pages)](https://harth.build/resources/solar-data/canada.md)
- [Solar & Daylight Data: Hong Kong (177 pages)](https://harth.build/resources/solar-data/hong-kong.md)
- [Solar & Daylight Data: India (180 pages)](https://harth.build/resources/solar-data/india.md)
- [Solar & Daylight Data: Ireland (180 pages)](https://harth.build/resources/solar-data/ireland.md)
- [Solar & Daylight Data: Kenya (180 pages)](https://harth.build/resources/solar-data/kenya.md)
- [Solar & Daylight Data: Malaysia (100 pages)](https://harth.build/resources/solar-data/malaysia.md)
- [Solar & Daylight Data: New Zealand (44 pages)](https://harth.build/resources/solar-data/new-zealand.md)
- [Solar & Daylight Data: Nigeria (45 pages)](https://harth.build/resources/solar-data/nigeria.md)
- [Solar & Daylight Data: Philippines (44 pages)](https://harth.build/resources/solar-data/philippines.md)
- [Solar & Daylight Data: Singapore (41 pages)](https://harth.build/resources/solar-data/singapore.md)
- [Solar & Daylight Data: South Africa (45 pages)](https://harth.build/resources/solar-data/south-africa.md)
- [Solar & Daylight Data: United Arab Emirates (176 pages)](https://harth.build/resources/solar-data/united-arab-emirates.md)
- [Solar & Daylight Data: United Kingdom (45 pages)](https://harth.build/resources/solar-data/united-kingdom.md)

![Labeled sun-path diagram: Solar & Daylight Data](https://efwwel0vyt9vy5so.public.blob.vercel-storage.com/images/solar-data/index/diagram-1344.webp)

*Sun-path, solar altitude and azimuth, and daylighting inputs for architects — how to read sun-path diagrams and use computed solar angles for orientation, sh…*

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