Kailua-Kona in September
Great time to visit
September marks a return to sanity after the summer crush. Better weather than August and reasonable crowds make it a solid choice.
Weather
September brings relief as trade winds return and temperatures moderate slightly. Humidity drops and those stifling August conditions give way to more comfortable weather. Rain remains minimal.
31°C high23°C low3 rain days
Crowds & Cost
moderate crowds
~$225/day average
Events & Festivals
- •Aloha Festivals
- •Kona Coffee Cultural Festival begins
September Tips
- •Excellent month for hiking as temperatures cool down
- •Crowds thin out after Labor Day
- •Perfect time for exploring inland attractions
All Months
Kailua-Kona enjoys year-round sunshine thanks to its location on the Big Island's dry side. The best months are April through June and September through November – you'll get perfect weather without the peak season crowds or prices. Summer brings more families and higher hotel rates, but the ocean is warmest for swimming and snorkeling. Winter sees occasional rain and bigger surf, but temperatures still hover around 80°F. Here's what most people don't know – October is Ironman month, transforming the quiet town into an athlete's paradise. Hotel rates spike, restaurants book solid, and Ali'i Drive closes for the race. It's electric if you're into triathlon culture, exhausting if you're not. The shoulder seasons of April-May and September-November offer the sweet spot of good weather, reasonable prices, and manageable crowds.
Kailua-Kona Scores
Solo
7/10
Couples
7/10
Families
8/10
Adventure
8/10
Budget
5/10
Luxury
7/10
BUILD YOUR KAILUA-KONA PLAN
Insider picks, smart timing, and a plan ready when you are.