Planning for the weather is a good way to make your trip to Solan relaxing and enjoyable, especially when you’re splurging. The hottest months are usually June and May, with an average temperature of 21°C, while the coldest months are January and February, with an average of 8°C. The rainiest months in Solan are July, August, September and June, with each month seeing an average of 399 mm of rainfall.