What is the weather like during the summer (June, July, August)?
Summer weather is highlighted by the persistent tradewinds which occur about 90% of the time. These winds blowing from the northeast provide a cooling breeze accompanied by the occasional shower. The showers that occur tend to be brief and light in nature and confined to the windward, or east, sides of the islands and near the mountains. Daytime temperatures reach well into the 80s and even the lower 90s in some locations, especially the drier leeward sides. Overnight low temperatures are in the 70s. At higher elevations, such as Haleakala on Maui and Mauna Kea and Mauna Loa on the Big Island, temperatures are much cooler. Daytime highs will be in the 50s and 60s, with overnight lows in the 30s and 40s. During the 10% or so of the time that the tradewinds weaken, it can become rather humid. Hurricane season also begins in June, although it is not until late July and into August that the chances of a tropical system somewhere within the Central Pacific begin to really increase. On avera
