Destination Points of Himacal Pradesh, Uttarakhand or North East state will be better option if you are planning in the month of May - September.
Well inquire it on Google for bookings etc.
Before I suggest you the destinations that you should consider visiting in May-June, I am telling you the places that you should avoid if you already have them in your mind. 1. Kerala – Unless you love travelling in rains, avoid Kerala. Monsoons arrive pretty early in Kerala, and it can ruin your travel plans 2. Rajasthan – Rajasthan is extremely hot during summers and hence not ideal for tourists These are some destinations that enjoy good weather during summers: 1. Himachal Pradesh – Manali, Tirthan, Jibhi, Parvati Valley, Spiti 2. Ladakh
3. Kashmir While you may consider Northeast India also, be prepared for some rain. Additionally these are some more destinations that you may consider: