The whole of Malaysia is a tropical rainforest climate, with hot and rainy seasons. The coastal areas are affected by the alternation of the southwest monsoon and the northeast monsoon.

Malaysia is mainly composed of East Malaysia (Sabah and Sarawak) and West Malaysia (Malay Peninsula) separated by the South China Sea.

Most of Malaysia's coastal areas are plains, while the central part is a plateau covered with dense tropical rainforests. The highest peak is Mount Kinabalu on Sabah. Malaysia is hot and humid because it is close to the equator. The southwest wind is blowing from April to October every year, and the northeast wind is blowing from October to February.

The average rainfall in West Malaysia is 2000-2500 mm, while that in East Malaysia is above 3000 mm. The rainfall is the lowest in June-July, with the most rainfall in August-September and October-December.

Although there is a lot of rainfall, the rain stops quickly, and there are very few rainy days. Therefore, Malaysia is a place with eternal summer and eternal sunshine. The temperature changes are small throughout the year.

Although it was hot during the day, there was a shower every afternoon, and after the rain, the weather turned cold, so there was a description of "the four seasons are all like summer, and when it rains, the Autumn is arrived." In the evening, there is a monsoon blowing, which is more cool and pleasant.

However, if you have a business event, it is best to go from March to November every year. Most Malaysian businessmen take a vacation from December to February.

It is not advisable to go to the week of Christmas and Easter, and to avoid the Muslim holy month and the Chinese New Year. The temperature difference during the year is extremely small, with an average temperature between 26 and 29 °C.

The annual rainfall is abundant, and the rainy season is from October to December. Traveling in Malaysia is basically appropriate throughout the year.