Visiting local bars in Barinas is more fun when you know what the weather holds. These rainfall averages and temperatures can help you decide the best time for bar hopping. The hottest months are usually February and March with an average temp of 80°F, while the coldest months are July and August with an average of 76°F. The rainiest months in Barinas are June, May, August, and July, with each month seeing an average of 10 inches of rainfall.