Can I wear boots in the weather with the highest temperature of 25 degrees?

If it's breathable boots, you can wear them at 25 degrees or 35 degrees, and you won't be lame.

For example, desert combat troops in various countries wear high-top combat boots, which are breathable and not lame.

Or a shoe pad on the soles of your feet. Leather insoles are very effective in absorbing sweat and moisture, but if the boots are not breathable, they need to be replaced frequently.