April weather forecast
Alofi, Niue

Alofi, Niue in April experiences a further dip in temperatures and rainfall amounts; a notable shift towards drier weather is observed. Rainfall, dramatically less than the initial months of the year, measures only 108mm (4.25"). This decrease signals the change in season, with fewer hours of daylight reciprocating this shift. Cooler winds and sea temperatures denote a move from summer into the cooler months of the year.

Temperature

April's advent presents an average high-temperature of a still moderately hot 27.3°C (81.1°F), indicating a slight variation from the conditions of the previous month. April notes an average low temperature of 26.5°C (79.7°F), subtly down from the daytime highs.

Heat index

The heat index value for April is estimated at a tropical 30°C (86°F). Ongoing activity coupled with exposure often results in weariness and could induce heat cramps.
Note that heat index values are valued for light wind and location in the shade. Direct sunlight can cause a surge in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', combines both the air temperature and the humidity level to give a perceived human temperature. Elements such as metabolic variations, being pregnant, and physical activity can impact one's weather perception. When exposed to direct sunlight, it's possible for the heat index to increase by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Young children are more at risk than adults since they tend to sweat less. Moreover, their large skin surface in proportion to their small bodies and the high heat production due to their activities contribute to their vulnerability.

Humidity

The months with the lowest humidity are March, April, June through August, with an average relative humidity of 77%.

Rainfall

In Alofi, in April, during 15.7 rainfall days, 108mm (4.25") of precipitation is typically accumulated. Throughout the year, there are 229.1 rainfall days, and 1209mm (47.6") of precipitation is accumulated.

Sea temperature

The months with the warmest seawater in Alofi are January through April, with an average sea temperature of 28°C (82.4°F).
Note: Surface water temperatures between 25°C (77°F) and 29°C (84.2°F) offer outstanding conditions for any water activity, providing extreme pleasure for extended periods.

Daylight

The average length of the day in April is 11h and 39min.
On the first day of April, sunrise is at 06:26 and sunset at 18:19. On the last day of the month, sunrise is at 06:34 and sunset at 17:59 -11.

Sunshine

In Alofi, the average sunshine in April is 7.2h.

UV index

The months with the highest UV index in Alofi are January through May, November and December, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for average individuals.
Note: In April, the maximum UV index of 7 suggests this advice:
Escape overexposure. People with light skin may incur burns in fewer than 20 minutes. It's important to stay in the shade and limit exposure to the sun from 10 a.m. to 4 p.m., when UV radiation is most intense, although remember that shade structures may not provide full sun protection. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Attention! UV radiation is markedly stronger with water and sand reflections.