Vanuatu stretches over 1,100km in a north-south direction meaning subtropical conditions in the south and tropical conditions in the north.
The best time of year to visit Vanuatu is April/May to October, the “dry” season, when temperatures range from 18 to 28 degrees Celsius. Light, casual clothing, plus a sweater for evenings usually suffice. November and December are warm but not unpleasantly so, generally. January to March is hot (26-34 degrees Celsius with up to 90% humidity), often wet and prone to cyclones, but being low season it's also a good time of year to take advantage of travel deals. While you can expect slightly more rain over the wet months, tropical rain showers are relatively common, usually lasting for less than an hour.
Espiritu Santo is home to Vanuatu's four highest peaks: Mt Tabwemasana, Mt Kotamtam, Mt Tawalaala and Santo Peak, each over 1,700m. The western side of the island is rugged mountainous terrain whereas the southern and eastern edges of the island are vast and flat, ideal for plantations and grazing cattle. As the largest island of Vanuatu, Santo has a great expanse of original rainforest and is home to a diverse range of colourful butterflies, tropical birds and beautiful orchids. In the north lies Vanuatu's first National Park, Vathe Conservation Area.