Hawaii's Summer Temperatures: Consistently Warm

Hawaii enjoys remarkably stable temperatures year-round. During the summer months (June through August), the average daily temperature is around 80 °F (27 °C). Daytime highs typically reach the mid-80s °F (29–30 °C), while nighttime lows rarely dip below the low 70s °F (21–22 °C). Trade winds provide natural cooling, and ocean temperatures stay in the high 70s °F, making swimming pleasant throughout the season.