May weather forecast
Nuku'alofa, Tonga

May sees a further continuation of the trend set in April. The weather in Nuku'alofa undergoes a noticeable cooling from the hot and rainy season, the temperature scaling down to a comfortable range. Relative humidity also undergoes a slight elevation. Despite the scaled-down sunlight hours, the daylight remains ample enough to explore the surroundings. Sea temperatures follow the same trend, cooling gradually from the previous months.

Temperature

May experiences an average high-temperature of a still warm 26.8°C (80.2°F), barely different from April's 28.5°C (83.3°F). Nuku'alofa experiences a consistent average temperature of 20.3°C (68.5°F) throughout the nights in May.

Humidity

In Nuku'alofa, the average relative humidity in May is 78%.

Rainfall

In May, in Nuku'alofa, the rain falls for 15 days. Throughout May, 111mm (4.37") of precipitation is accumulated. Throughout the year, in Nuku'alofa, Tonga, there are 180 rainfall days, and 1721mm (67.76") of precipitation is accumulated.

Sea temperature

In Nuku'alofa, in May, the average water temperature is 26.8°C (80.2°F).
Note: For water activities like swimming, diving, and more, temperatures ranging between 25°C (77°F) and 29°C (84.2°F) offer superior comfort and enjoyment for lengthy durations.

Daylight

The average length of the day in May is 11h and 6min.
On the first day of the month, sunrise is at 06:58 and sunset at 18:17. On the last day of May, in Nuku'alofa, sunrise is at 07:10 and sunset at 18:06 +13.

Sunshine

The average sunshine in May is 9h.

UV index

The average daily maximum UV index in May in Nuku'alofa, Tonga, is 7. A UV Index of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for the ordinary person.
Note: The maximum daily UV index of 7 in May converts into the following recommendations:
Escape overexposure. People with light skin may incur burns in fewer than 20 minutes. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. During bright days, sunglasses that offer UVA and UVB defense are recommended. Warning! Sand and water reflections boost the intensity of UV exposure.