If you’re hoping to get lost in the rain on your romantic getaway, take a look at these details about year-round temperatures in Chail: 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 9°C. The rainiest months in Chail are July, August, September and June, with each month seeing an average of 399 mm of rainfall.