How do you say

My friends and I are planning to travel for the next three months.

..in Chinese?

我和朋友计划在未来三个月去旅行。

wǒ hé péng yǒu jì huà zài wèi lái sān gè yuè qù lǚ xíng 。

How do you say "Temperatures have been fluctuating wildly in Hangzhou over the last three months." in Chinese?