I visited manali in the month of oct. this place has alot to offer. manali hill station has a picturesque beauty. manali according to me can me fun when there is off season because it gets too crowded during the peak season of summer and christmas and new year celebrations. there are a number of tourist spots that u can see from rohtang pass. solang valley, tibetan monastery manikaran bijli mahadev. I recommed u to go bijli mahadev its a easy trek through stairs that will lead you to top. it is 80 km from manali. manali mall road comes to life at night you can buy various items here. you can also enjoy the himanchali cuisine here. manali has something for every one its a beautiful place for holiday .