In August in England, eight weeks after the summer solstice, the direct heat from the sun on a fine day feels much hotter than it does in April, eight weeks before the solstice, although its elevation is the same. I understand that the air temperature will be warmer, but why does the radiation feel more intense? Or is it an illusion?
Doug Fenna, Ryde, Isle of Wight, UK
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This article appeared in print under the headline “Seasons in the sunâ€