Planning for the weather is a good way to make your trip to Otavalo relaxing and enjoyable, especially when you're splurging. The hottest months are usually September and October, with an average temperature of 13°C, while the coldest months are August and July, with an average of 13°C. The rainiest months in Otavalo are April, November, March and February, with each month seeing an average of 280 mm of rainfall.