August weather forecast
Waimalu, HI

August in Waimalu is often labeled as a month synonymous with mildly humid summer weather. The city experiences a modicum of heat with minimal fluctuations in daylight and sea temperature. Despite the slightly increased rainfall, August remains a comfortable month, also denoting a dip in wind speed to a significant 11.1mph (17.9km/h). As compared to July, the city receives shorter daylight, yet a hearty outdoor atmosphere prevails in August. Steaming through the summer days, Waimalu maintains a fascinating equilibrium between heat and precipitation throughout the month.

Temperature

Waimalu's temperatures tend to hit their maximum during August and September, with an average high-temperature of 82°F (27.8°C).

Heat index

The heat index value during August is appraised at a hot 87.8°F (31°C). If one sustains activity during exposure, it could lead to a sense of fatigue, with a chance of heat cramps.
Regarding the heat index, one should be aware it's determined by shaded settings and mild winds. The heat index may experience an enhancement of 15 Fahrenheit (8 Celsius) degrees under direct sunlight.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is a fusion of air temperature and moisture levels to demonstrate the sensation of heat. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and physical activity. It is important to note that direct sunlight can intensify the weather impact, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Young children typically face greater hazards than adults because they do not sweat as much. Their larger skin surface in comparison to their little bodies and the high heat production from their active nature compounds their vulnerability.

Humidity

The average relative humidity in August in Waimalu is 75%.

Rainfall

In Waimalu, Hawaii, in August, it is raining for 16.8 days, with typically 1.02" (26mm) of accumulated precipitation. Throughout the year, in Waimalu, Hawaii, there are 208.4 rainfall days, and 16.5" (419mm) of precipitation is accumulated.

Ocean temperature

August through October, with an average ocean temperature of 80.6°F (27°C), are months with the warmest seawater.
Note: Water temperature ranging from 77°F (25°C) to 84.2°F (29°C) is seen as very warm and delightful by everyone. During these temperatures, water activities become enjoyable, without causing discomfort for extended periods.

Daylight

In Waimalu, the average length of the day in August is 12h and 50min.
On the first day of August, sunrise is at 6:05 am and sunset at 7:10 pm. On the last day of the month, sunrise is at 6:15 am and sunset at 6:48 pm HST.

Sunshine

In August, the average sunshine in Waimalu is 8.3h.

UV index

The months with the lowest UV index are January through August, October through December, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for the average person.
Note: In August, the maximum UV index of 6 suggests this advice:
Persist with precautions and heed sun safety advice. Prevention of sunburn is compulsory. Avoid direct Sun exposure and seek shade between 10 a.m. and 4 p.m., when UV radiation is at its peak, but keep in mind that not all shade structures provide complete protection. Enhance your sun protection with tightly woven, yet airy clothing. Warning! Sand and water reflections boost the intensity of UV exposure.