When to Go

The tourist season in Venezuela runs year-round, but consider the climate and Venezuelan holidays before finalizing your travel plans. Venezuela has a dry season (late November to early May) and a wet season (the rest of the year). The dry season is certainly more pleasant for traveling, particularly for hiking or other outdoor activities, though sightseeing in cities or towns won’t be greatly disturbed by rain. Some sights, such as waterfalls, are actually more impressive in the wet season. Angel Falls is absolutely spectacular after heavy rains in the wet months, but may be little more than a thin ribbon of water in the dry season. Furthermore, the falls can be inaccessible by boat in dry months.

Venezuelans are mad about traveling to visit friends, family and the beach over Christmas (through till mid-January), Carnaval (several days prior to Ash Wednesday) and Semana Santa (Holy Week; the week before Easter Sunday). These periods are colorful and alive with a host of festivities, but you may need to plan ahead for accommodation and transport.

Source:
http://opentravel.com/Venezuela-Vacations-Guide
http://foter.com/Venezuela/