August and September will have pleasant weather withoutbmuch sun cloudy with rain in some days. Tourist season starts from Oct to Feb end. December and January will be cold with winter temperatures dropping. If you are planning vistadome book atleast 3 months in advance. Avoid weekends and
Dussera 2 weeks, Dec 15-Jan 30 period as tourist influx will be more and crowded. You won't get that good vibe.