When is the most comfortable temperature?

In our Jilin area, the temperature is relative, and the body has two periods to adapt to it, namely:

The first period is:

From the end of May to the end of June, the weather was fine, everything recovered, and the temperature was 18~26 degrees Celsius.

The second period is:

From the early September of 10 to the early September of 10, the autumn is crisp and fruitful, and the temperature is 18~26 degrees Celsius.

The weather and climate in these two stages are most suitable for people to engage in various activities, neither too hot nor too cold, and feel most comfortable!