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Solar radiation is at its strongest when the sun is directly overhead at midday. This is the brightest and hottest time on a clear day because the sun's radiation passes through less of Earth's atmosphere when it strikes Earth perpendicularly. These effects are much less in the early morning or late afternoon when some solar radiation is blocked because it passes through more atmosphere at a greater angle.

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16y ago

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Related Questions

What occurs when the sun is directly overhead at the equator?

Very small shadows.


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The sun is directly overhead at the summer solstice at the Tropic of Cancer (23.5oN). This is as the most northernly latitude which has the sun directly overhead at any time of the year. A similar case happen at the winter solstice at the Tropic of Capricorn (23.5oS).


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Not always. The sun is directly overhead at the equator at the spring and fall equinoxes.


How many days of a calendar year is the sun directly overhead in continental us?

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