Bangkok has 9.7 million automobiles and motorbikes, a number the government says is eight times more than can be properly accommodated on existing roads. And those numbers are increasing by 700 additional cars and 400 motorbikes every day.
Annual Weather Averages. April is the hottest month in Bangkok with an average temperature of 87°F (31°C) and the coldest is December at 79°F (26°C) with the most daily sunshine hours at 9 in December. The wettest month is September with an average of 220mm of rain