Number + 月
三月 (sānyuè) means "March," the third month of the year. Chinese months are formed by placing a number (1–12) before 月 (month). To say "in March," simply use 三月 or add a time phrase like 今年三月 (this March).
三月的天气忽冷忽热,容易感冒。
Sān yuè de tiānqì hūlěng hūrè, róngyì gǎnmào.
The weather in March is unpredictably hot and cold, making it easy to catch a cold.
今年三月我打算去日本看樱花。
Jīnnián sān yuè wǒ dǎsuàn qù Rìběn kàn yīnghuā.
I plan to go to Japan to see the cherry blossoms this March.
她是三月出生的,属于双鱼座。
Tā shì sān yuè chūshēng de, shǔyú Shuāngyú Zuò.
She was born in March and is a Pisces.
三月的天气忽冷忽热,容易感冒。
Sānyuè de tiānqì hū lěng hū rè, róngyì gǎnmào.
The weather in March is unpredictably hot and cold, making it easy to catch a cold.
今年三月我打算去日本看樱花。
Jīnnián sānyuè wǒ dǎsuàn qù Rìběn kàn yīnghuā.
I plan to go to Japan to see the cherry blossoms this March.
她是三月出生的,属于双鱼座。
Tā shì sānyuè chūshēng de, shǔyú Shuāngyú Zuò.
She was born in March and is a Pisces.