April weather forecast
Arutanga, Cook Islands

April’s weather patterns see a gentle drop in temperature, marking the beginning of the transition towards the dry season in Arutanga. The presence of less humidity is noticeable as compared to the previous months, adding a crispness to the air. With an average of 115mm (4.53") of rainfall, the weather becomes less wet relative to March. Despite less daylight hours, the comfortable temperature and decrease in rainfall make April an ideal time for exploring Arutanga’s landscapes and oceanic wonders. The reduced rainfall is compensated by a more substantial wind speed, offering a comfortable and tranquil environment.

Temperature

Arutanga, Cook Islands, marks the onset of April with an average high-temperature of a still moderately hot 27.7°C (81.9°F), a subtle shift from March's 27.9°C (82.2°F). Arutanga's nights in April maintain a consistent average of 27°C (80.6°F), demonstrating a minimal differential from its daytime temperature.

Heat index

In April, the heat index is computed to be a tropical 31°C (87.8°F). Enduring exposure and ongoing activity could cause a sense of fatigue and subsequent heat cramps.
Given the heat index, its values are aligned with shaded sites and gentle winds. Exposure to the direct sun might augment heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is a measure of how hot it feels when the actual air humidity is factored in. The individual's impression of temperature can be shaped by additional aspects such as metabolic variations, physical activity, and clothing. With direct sunlight, be aware that it might enhance the heat sensation, raising the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. In general, younger individuals are at greater risk than adults because they tend to sweat less. Also, having a larger skin surface to body size ratio and greater heat production due to their active behavior contribute to this danger.

Humidity

The average relative humidity in April in Arutanga is 77%.

Rainfall

In Arutanga, Cook Islands, in April, during 23 rainfall days, 115mm (4.53") of precipitation is typically accumulated. In Arutanga, during the entire year, the rain falls for 214.3 days and collects up to 1133mm (44.61") of precipitation.

Sea temperature

January through April, with an average sea temperature of 28°C (82.4°F), are months with the warmest seawater in Arutanga.
Note: Swimming, diving, and other water activities in the temperature range of 25°C (77°F) to 29°C (84.2°F) are perceived as very enjoyable and comfortable for prolonged durations.

Daylight

In Arutanga, the average length of the day in April is 11h and 40min.
On the first day of the month, sunrise is at 06:46 and sunset at 18:39. On the last day of April, in Arutanga, sunrise is at 06:53 and sunset at 18:18 -10.

Sunshine

The average sunshine in April in Arutanga is 7.6h.

UV index

The months with the highest UV index in Arutanga are January through May, October through December, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The maximum UV index of 7 during April translates into these guidelines:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Between 10 a.m. and 4 p.m., UV radiation is strongest. Make an effort to avoid direct sunlight during this time, remembering that shade structures may not provide full sun protection. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. Be cautious! Sand and water surfaces make the Sun's UV rays more potent.