Oahu
Some claim Oahu has the best weather in the state. Regardless, the whole island certainly enjoys great conditions year round. Expect temperatures averaging 80°F from mid-November through March. The mercury then climbs into the upper-80's.

Rain showers favor the windward (east) side, but tend to be quick squalls. Winter is wetter, sure... but the season makes up for it with fantastic surfing and whale watching.

Bargain-hunters prefer mid- to late May and anytime in September. Avoid the last week in April, when many Japanese visit and accommodations can be hard to find.