There's nothing like an all-inclusive holiday in Gaspar Hernandez to refresh you, especially when you know what kind of weather to expect. Here's some information to help you choose when to book: The hottest months are usually June and September, with an average temperature of 26°C, while the coldest months are January and February, with an average of 22°C. January and February are the driest months, while May and August are the rainiest months.