Why are there smoggy weather in these places near the sea in Southeast Asia?

July happens to be the rainy season in Thailand, and there are often sudden rainstorms as big as beans! The best time to travel to Thailand is 165438+ 10, and next March will be winter in China! The temperature in Thailand at this time is the coolest time of the year, and Bangkok at night is almost 25 degrees. If you go to the north, such as Chiang Mai, it will be cooler. The autumn temperature in China is below 20 degrees, and it is almost dry and rainy. The coolness mentioned here is when there is something to shelter from the wind and rain or when the night is compared with other months, the temperature under the big sun is not much different from other months, and it is quite hot!