May weather forecast
Tanna, Vanuatu

May presents a further reduction of precipitation, down to 181mm (7.13"), nudging the weather towards drier conditions. The decline in the daily temperature range continues, with the lowest high temperature recording of 25°C (77°F) for the first half of the year. The hours of daylight are at their shortest, signifying longer nights. The combined effect of these changes sets stage for mid-year respite. UV levels begin to moderate, lowering the intensity of the day's heat.

Temperature

As Tanna welcomes May, the average high-temperature is noted at a still moderately hot 25°C (77°F), closely aligning with the preceding month. Tanna records a mean low-temperature of 18°C (64.4°F) in May.

Rainfall

In Tanna, during May, the rain falls for 19 days and regularly aggregates up to 181mm (7.13") of precipitation. In Tanna, during the entire year, the rain falls for 213 days and collects up to 2435mm (95.87") of precipitation.

Sea temperature

In Tanna, the average seawater temperature in May is 26°C (78.8°F).
Note: Surface water temperatures ranging from 25°C (77°F) to 29°C (84.2°F) are considered superb and highly pleasant for water activities over extended periods.

Daylight

The average length of the day in May in Tanna is 11h and 12min.
On the first day of the month, sunrise is at 05:57 and sunset at 17:21. On the last day of May, sunrise is at 06:09 and sunset at 17:11 +11.

Sunshine

The average sunshine in May is 6h.

UV index

In Tanna, the average daily maximum UV index in May is 8. A UV Index of 8 to 10 symbolizes a very high health vulnerability from unprotected exposure to Sun's UV rays for average individuals.
Note: In May, the maximum UV index of 8 transforms into these recommendations:
With the absence of protection, damage to skin and eyes can occur instantly. Ensure precautions are taken. Avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is most intense, and remember that not all shade structures provide full protection. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Be vigilant! The Sun's UV rays get a boost from sand and water reflections.