Planning for the weather is an important factor for making your trip to Monserrate a success, especially when you’re splurging. The hottest months are usually August and July, with an average temperature of 19°C, while the coldest months are January and February, with an average of 11°C. The rainiest months in Monserrate are October, December, November and January, with each month seeing an average of 223 mm of rainfall.