Phetchaburi province next to Thai Gulf receive the influence of the South-East monsoon in the rainy season, which in effect makes the rain and wind from North-East monsoon in winter, the cold air.
Phetchaburi Province on the Gulf of Thailand has been the influence of southwest monsoon rains. Which results in the rain. And the influence of the northeast monsoon in winter. As a cold
In the influence of the Gulf in the southeast monsoon in the rainy season, which is the rain. And influenced by the northeast monsoon in winter, the cold weather.