The north shore of Kaua'i would be great in either of those months!
Be aware that it is hurricane season though. The Hawaiian Islands just experienced one by the name of Iselle not that long ago. The Big Island took the brunt of it.
I wouldn't worry about rain on either island in either month.
Check the rain fall charts and don't. Stay in rain Forrest areas.
Both are fabulous during those summer months. As Joan said, there is a risk of hurricanes, but usually are ok. Those months are when north Kauai is at it's best. The water in the north is usually perfect for swimming and snorkeling. If there is rain..it is usually quick showers or showers during the night. It is amazingly beautiful. Same on Maui.
In my opinion not like you see on the east coast
i am from NY and have seen some dosies
The Pacific Hurricane season is from June to Dec
But it is different than the Atlantic season. There multiple storms travel through a small area of the carib and come up against the entire east coast of the US
In the Pacific storms have to travel over thousands of miles of open water and hit a tiny speck in the middle of the Pacific.
This past storm was a very rare event and personally we never even worry about hurricanes and we have been coming go Maui fir decades in hurricane season, most we've had is a loss of the trades due to a distant storm
Good to know about but don't think you need to plan around it like in the CaribEdited: 28 August 2014, 15:35
***The Hawaiian Islands just experienced one by the name of Iselle not that long ago***
The Hawaiian "Islands" didn't just experience a hurricane it was a tropical storm, it hit half of one island and broke up when it hit the volcanoes that were higher than it. Maui got some rain, but Kona didn't.
It was only the second tropical storm ever to hit the Big Island and the last time a hurricane hit landfall in Hawaii was 22 years ago with Iniki. Even talking about hurricanes seems silly since they almost never effect Hawaii.
Rain is not a huge problem on either island in July & August and the south sides are drier, but just barely.Edited: 28 August 2014, 16:12
Also, national weather maps will almost always show 'rain' over the islands -- because there will be some rain in higher elevations, but not where you will be staying. The pali of Kauai are that beautiful green due to rainfall that seldom reaches lower elevations except as transitory showers.
Although the "hurricane" was ONLY a "tropical storm" parts of the east side of the island of Hawaii was decimated. Tell those who don't have homes anymore it was just "silly to talk hurricanes" in Hawaii.