Planning for the weather is a good way to make your trip to Leona Vicario relaxing and enjoyable, especially when you’re splurging. The hottest months are usually August and July with an average temp of 82°F, while the coldest months are January and February with an average of 76°F. The rainiest months in Leona Vicario are June, September, October, and August, with each month seeing an average of 8 inches of rainfall.