Planning for the weather is a good way to make your trip to Sululta relaxing and enjoyable, especially when you’re splurging. The hottest months are usually March and February with an average temp of 63°F, while the coldest months are November and December with an average of 59°F. The rainiest months in Sululta are July, August, September, and June, with each month seeing an average of 15 inches of rainfall.