Vanuatu Weather in September

September in Vanuatu is still very much a tropical month, with warm and comfortable temperatures ideal for outdoor adventures.

Expect average daytime highs of around 27°C (81°F), with evenings cooling slightly to a pleasant 19°C (66°F). Humidity is moderate, giving the islands a tropical feel without being oppressive.

Temperatures Across Vanuatu

• Efate (Port Vila) – The average high temperature is around 29°C (84.2°F), with an average low of 18°C (64.4°F).
• Espiritu Santo - The average high temperature is around 29°C (84.2°F), with an average low of 23°C (73.4°F).
• Malekula - The average high temperature is around 29°C (84.2°F), with an average low of 23°C (73.4°F).
• Tanna – The average high temperature is around 29°C (84.2°F), with an average low of 18°C (64.4°F).
• Banks Islands & Torres - The average high temperature is around 29°C (84.2°F), with an average low of 23°C (73.4°F).

Sea Temperature in September

The waters around Vanuatu remain inviting, averaging around 26°C (78.8°F) in September, perfect for swimming, snorkelling, diving, or just relaxing in the lagoon.

Even in September, technically still part of the cooler months, Vanuatu enjoys long, bright days. Expect about 12 hours of daylight, with around seven hours of sunshine daily, making it one of the sunniest months of the year. It's perfect for relaxing on the beach, exploring lush islands, or enjoying panoramic ocean views.

UV Levels During September

UV levels in Vanuatu climb significantly in September, with midday readings often reaching 11 or higher. That's considered extremely high, so applying reef-safe, high-factor sunscreen regularly is essential.

For more, check out The Best Sunscreens for Vanuatu + Sun Protection Tips.

Sunrise and Sunset During September

September has daylight hours lasting about 12 hours a day in Vanuatu.

• Sunrise: 5:58 am at the beginning of September and 5:35 am at the end of September
• Sunset: 5:46 pm at the beginning of September and 5:48 pm at the end of September.

September in Vanuatu brings mostly dry days with the occasional short-lived shower.

The islands typically see around 122 mm (4.8 in) of rainfall, spread across approximately 13 days during the month. When it does rain, it usually comes in brief tropical bursts rather than prolonged downpours.

Showers are unlikely to disrupt your plans, and the warm, balmy breeze will help dry things quickly. A light rain jacket can be handy just in case.

While September is still part of the dry season, it's slightly wetter than the peak dry months, so for the sunniest conditions, July or August may be preferable.

Average Rainfall Across Vanuatu

• Efate (Port Vila) – The average rainfall in September is 122 mm (4.8 in)
• Espiritu Santo - The average rainfall in September is 199 mm (7.8 in)
• Malekula - The average rainfall in September is 180 mm (7 in)
• Tanna - The average rainfall in September is 125 mm (4.9 in)
• Banks Islands & Torres - The average rainfall in September is 189 mm (7.4 in)

The South Pacific cyclone season runs from November to April. September falls well outside this period, making it one of the safest months to visit Vanuatu with a very low risk of tropical storms or cyclones.

Other months that have a low risk of tropical storms in Vanuatu include June, July and August. Find out more about tropical storms in our guide, Cyclone Safety in Vanuatu.

September is an ideal time to explore Vanuatu, with fewer tourists and warm, dry weather making outdoor activities especially enjoyable.

Start your journey on Efate LINK#D017, the most accessible island and home to the capital, Port Vila. Here, you can stroll along picturesque waterfronts, explore vibrant local markets and go horse trekking along the beaches. Plus, don't miss Fest Napuan, which is Vanuatu's largest music festival.

For a truly off-the-beaten-path adventure, we highly recommend visiting Ambrym in September. You'll discover active volcanoes that are wonderfully uncrowded compared to the popular Mt Yasur, but the real highlight is the incredible "Back to My Roots" festival.

This two-day celebration is, in our experience, one of the most authentic cultural experiences you can have in Vanuatu. This is the real deal; you'll witness chiefs passing their ranks and participate in genuine community ceremonies, complete with traditional kastom dancing.

If your schedule allows, we've found that visiting both Efate and an outer island gives you the complete picture of Vanuatu's incredible diversity.

Learn more about where to go in The Best Islands & Provinces to Visit in Vanuatu.

Be prepared for Vanuatu in September by packing these few seasonal essentials:

• Light clothing layers for the day (preferably linen, bamboo or merino preferably so it is super light - we like the sustainable bamboo clothing of Moso Morrow)
• Light long-sleeved tops (to cover from sun and mosquitoes)
• Sunhat
• Sunglasses
• Swimwear
• Rash vest (we like the UV-protecting Sharkskin rashies)
• Closed walking shoes
• Flip-flops/jandals/sandals
• Insect repellent
• High-factor sunscreen (that’s reef-safe and water-resistant)
• Sarong for ladies to cover pants, shorts or swimwear, especially if visiting the outer islands.

Get more ideas on what to pack with our guide, What to Pack for Vanuatu: Full Vanuatu Packing List.