Waipahu, HI has a tropical climate that is characterized by hot temperatures and high humidity levels. The average daily temperature in Waipahu is around 85 degrees Fahrenheit (29.4 degrees Celsius). During the summer months, temperatures can reach up to 90 degrees Fahrenheit (32.2 degrees Celsius). In the winter months, temperatures tend to be slightly cooler averaging around 82 degrees Fahrenheit (27.8 degrees Celsius). Rainfall in Waipahu is abundant with an annual total of more than 70 inches per year, making it one of the wettest places on Oahu. The area typically sees short bursts of rain throughout the day during its wet season which lasts from October through April.
Waipahu, Hawaii gets 17 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Waipahu averages 0 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 276 sunny days per year in Waipahu. The US average is 205 sunny days.
Waipahu gets some kind of precipitation, on average, 81 days per year. Precipitation is rain, snow, sleet, or hail that falls to the ground. In order for precipitation to be counted you have to get at least .01 inches on the ground to measure.
Weather Highlights
Summer High: the July high is around 88 degrees
Winter Low: the January low is 64
Rain: averages 17 inches of rain a year
Snow: averages 0 inches of snow a year