Climate - Vanuatu

The climate in detail

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• North - Vanua Lava
• Center-South - Port Vila, Aneityum
• Cyclones
• When to go
• What to pack

North

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The northern islands are divided into four provinces: Torba (an acronym based on the initial letters of the Torres Islands and the Banks Islands), Sanma (which includes Espiritu Santo, the largest island of Vanuatu), Malampa (which includes Malakula, the second largest island), and Penama.

Vanua Lava

The winter season, from July to September, is warm on the northern islands, with highs around 28/29 °C (82/84 °F), as we can see from the average temperatures of Sola, on the island of Vanua Lava, belonging to the Banks Islands and located at almost 14 degrees south latitude.

The rains in Vanua Lava are abundant throughout the year, as generally happens on the northern islands having an equatorial climate, although they decrease slightly in the austral winter. Here is the average rainfall.

On the northern islands, the sea is warm enough to swim in all year round, as we can see in the following table.

Moving south, the winter becomes gradually cooler; however, on the islands of Espiritu Santo (see Luganville) and Malakula, the minimum temperature remains above 20 °C (68 °F) even in the coolest months.

Center-South

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In the center of Vanuatu we find the province of Shefa, an acronym based on the Shepherd islands, as well as Epi and Efate. In the south we find the province of Tafea, an acronym based on the islands of Tanna, Aneityum, Futuna, Erromango and Aniwa.
On the central islands, the daytime temperature in winter is around 27 °C (81 °F), while on the southern islands, it drops to 25/26 °C (77/79 °F). At night, on these islands of the center and the south, the average temperatures are around 17/18 °C (63/64 °F), moreover, there may be cool periods, in which they drop to 12/13 °C (54/55 °F).

Port Vila

The capital, Port Vila, is located on the central island of Efate, at almost 14 degrees south latitude. Here are the average temperatures.

In Port Vila, and in general on the central and southern islands, the decrease in rainfall from May to October is evident, even though it remains above 100 mm (4 in) per month. Here is the average rainfall.

The amount of sunshine in Port Vila, and in general in Vanuatu, is not great but it's neither poor: the sun often shines, but some cloudiness, maybe associated with showers and thunderstorms, is always possible. Here are the average sunshine hours per day.

The sea remains quite warm to swim in also on the central islands, where the sea temperature drops to 26 °C (79 °F) from June to October. Here are the average sea temperatures near Port Vila.

Aneityum

On the southernmost islands, the winter is even cooler, to the point that the average daily temperature drops to 21.5 °C (70.5 °F) in July and August, as we can see from the data of Aneityum (or Keamu), the southernmost island of Vanuatu, located in the province of Tafea.

Consequently, on the southernmost islands, the sea is cooler as well, though it's still warm enough for swimming, in fact, the water temperature drops to 24 °C (75 °F) from July to October, as we can see from the data of Aneityum.

Tropical cyclones

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The Vanuatus are affected by tropical cyclones. Cyclones are usually formed from November to mid-May, though they are most likely from late December to early April. Outside of this period, there has been Cyclone Xavier, which brushed the northern islands in late October 2006. A particularly intense cyclone was Pam, which hit the islands in March 2015.

When to go

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On the northern islands of Vanuatu (down to Espiritu Santo and Malakula), the best time is from July to September, since it is the least hot and rainy period of the year.
On the central and southern islands, which include the capital, the best time is from May to October. Considering that, on these islands, it can get cool from June to September, you may prefer the period mid-May to mid-June, and even more the month of October, when it's a bit warmer, and heavy rains are still to come.
Even in the least rainy months, however, there is no lack of showers, especially on the northernmost islands.

What to pack

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In winter (June to August): pack light clothes for the day, a scarf for the breeze, a sweatshirt for the evening, and possibly a light jacket on the southern islands; a light raincoat or umbrella. When going to the reef, you can bring snorkeling equipment, including water shoes or rubber-soled shoes.
In summer (December to February): pack tropics-friendly, loose-fitting clothing, a sun hat, a scarf for the breeze, a light sweatshirt for the evening, and a light raincoat or umbrella.

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