Solar Noon 2 topics · 2 sources ScienceEnergyThe time of the day, at a specific location, when the sun reaches its highest, apparent point in the sky; equal to true or due, geographic south.US DOE Office of Energy Efficiency & Renewable Energy — Glossary of Energy-Related Terms retrieved 2014-05-26 Cite ScienceWeatherThe time of day at which the sun is the highest in the sky. This time varies through the year due to the change in speed of the earth's orbit around the sun.NOAA National Weather Service — National Weather Service Glossary Cite