Traditional Culture Encyclopedia - Weather forecast - The sun is a little dim, but it is unbearably hot. What happened? Is it a sign of climate disaster?

The sun is a little dim, but it is unbearably hot. What happened? Is it a sign of climate disaster?

I don't think so.

Generally speaking, it is because of low air pressure or high humidity in the air.

If it's because of the low air pressure. The water in the body will be sultry if it is difficult to evaporate.

Besides, you can't measure whether the weather is hot just by the brightness of the sun.

Because visible light is only a part of solar radiation. And the energy is low.

And some ultraviolet rays. Although people can't see it. But the energy is much higher than visible light. It makes people feel hot.

Generally speaking. The upper atmosphere will block most ultraviolet rays from reaching the surface. Let visible light pass through. (The refractive index of light at different frequencies is different)

With the different local seasons, the upper atmosphere will change relatively. So when the upper atmosphere is relatively thin. When the blocking ability is weakened. Clouds with lower surface are thicker. It may be dark, but it's still hot.