Weather is probably a major factor when you plan your trip to La Vega, but bear in mind that cheaper options are usually available when the weather isn't as good. The hottest months are usually September and August, with an average temperature of 17°C, while the coldest months are January and December, with an average of 16°C. The rainiest months in La Vega are March, November, April and October, with each month seeing an average of 302 mm of rainfall.