Vanuatu Weather in May

May in Vanuatu signals the start of slightly cooler and less humid conditions compared to the earlier months of the wet season. That said, it still feels distinctly tropical. Expect average daytime highs of around 28°C (84°F), with nighttime lows dipping to about 21°C (70°F), perfect for beach days and balmy island nights.

Humidity begins to ease slightly, making outdoor activities like hiking, exploring villages, or visiting waterfalls more comfortable, though it’s still recommended to stay hydrated and take breaks in the shade during the hottest parts of the day.

Temperatures Across Vanuatu

• Efate (Port Vila) – The average high temperature is around 30°C (86°F), with an average low of 22°C (72°F).
• Espiritu Santo - The average high temperature is around 31°C (87.8°F), with an average low of 24°C (75.2°F).
• Malekula - The average high temperature is around 31°C (87.8°F), with an average low of 24°C (75.2°F).
• Tanna – The average high temperature is around 30°C (86°F), with an average low of 22°C (72°F).
• Banks Islands & Torres - The average high temperature is around 31°C (87.8°F), with an average low of 24°C (75.2°F).

Sea Temperature in May

Vanuatu’s coastal waters remain warm and inviting year-round. In May, the average sea temperature is around 27°C (81°F), making it ideal for snorkelling, diving, swimming, or simply cooling off in the clear, coral-rich lagoons.

As Vanuatu moves further into its drier season, May brings slightly shorter days, though "short" is relative in the tropics. You can still expect around 11 hours of daylight, with an average of six hours of bright sunshine daily, a solid amount for beach hopping, snorkelling, or scenic hikes around the islands.

UV Levels During May

UV levels remain very high in May, with the UV index around 8 at midday. This makes sun protection essential, so be sure to wear reef-safe sunscreen, hats, and protective clothing while enjoying outdoor activities.

For advice on sunscreen, take a look at The Best Sunscreens for Vanuatu + Sun Protection Tips.

Sunrise and Sunset During May

May has daylight hours lasting about 11 hours a day in Vanuatu.

• Sunrise: 6:03 am at the beginning of May and 6:12 am at the end of May
• Sunset: 5:34 pm at the beginning of May and 5:26 pm at the end of May

May marks the beginning of the drier season in Vanuatu, though occasional rain showers still occur. On average, the islands experience about 18 days with some rainfall, but most showers are brief and heavy, quickly giving way to sunshine, perfect for beach days, hiking, or exploring local villages.

Vanuatu receives around 164 mm (6.5 in) of rainfall in May, making it noticeably drier than the peak wet season months. The landscapes remain lush, and waterfalls continue to flow, just with fewer interruptions from the weather.

It’s an ideal time to visit if you’re looking for a mix of tropical sunshine, comfortable temperatures, and vibrant scenery.

Average Rainfall Across Vanuatu

• Efate (Port Vila) – The average rainfall in May is 164 mm (6.5 in)
• Espiritu Santo - The average rainfall in May is 217 mm (8.5 in)
• Malekula - The average rainfall in May is 204 mm (8 in)
• Tanna - The average rainfall in May is 181 mm (7.1 in)
• Banks Islands & Torres - The average rainfall in May is 209 mm (8.2 in)

In Vanuatu, May marks the official end of the South Pacific cyclone season, which runs from November to April. This means the likelihood of a tropical storm or cyclone forming during the month is very low. Historically, Vanuatu has experienced little to no significant cyclone activity in May, making it one of the safer months weather-wise to visit.

Still, it’s wise to stay weather-aware when travelling in the tropics, as occasional off-season disturbances can form across the South Pacific.

If you're travelling during this transitional time, it's worth brushing up on Cyclone Safety in Vanuatu, just in case.

For those wanting the most stable and predictable conditions, the mid-year dry season, particularly June through August, is ideal.

May is honestly one of our favourite times to visit Vanuatu, and we're not just saying that! With tourist numbers at their lowest and no major local holidays to navigate around, you'll find yourself with a wonderfully peaceful atmosphere that's perfect for soaking up everything this incredible archipelago has to offer.

The weather's delightfully warm and tropical, with just the occasional brief shower that rarely puts a damper on your plans. We've found that these little bursts of rain actually add to the charm (and they're great for cooling off after a hot day of exploring).

We recommend starting your Vanuatu adventure on Efate LINK#D017, where you'll discover some truly exceptional scuba diving opportunities. The various wrecks around Port Vila are absolutely spectacular, and Cathedral Caves will leave you mesmerised with its underwater formations. While you're there, treat yourself to a thrilling zipline tour and don't miss experiencing a traditional nakamal (kava bar).

Next, hop on a flight to Pentecost for the weekend to witness the incredible naghol (land diving) ceremonies. May is the perfect time to visit, as these death-defying rituals are in full swing.

Finally, unwind on Santo LINK#D053 where the underwater adventures continue. You can dive the legendary SS President Coolidge (one of the world's most accessible shipwrecks) or snorkel Million Dollar Point, where wartime equipment creates an underwater museum. For those seeking a bit more adventure, rope swing into pristine blue holes that remain blissfully uncrowded, or take a tour to Millennium Cave, an experience that's as thrilling as the name suggests.

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

• Light clothing layer (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 the sun and take the edge off those slightly cooler nights)
• 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.