Our verdict
The best time to visit Kailua-Kona is April
In the height of summer, temperatures in Kailua-Kona can reach a maximum of 28℃ (82℉). The coldest it usually gets in winter-time in Kailua-Kona is around 17℃ (63℉).
The longest days between sunrise and sunset in Kailua-Kona are usually in July, so if you want to get the most out of your daytime activities, be sure to plan your visit around this time. On average it rains the most days in September, making it the wettest month of the year. Although it’s the wet season, it can often rain a little bit during the day or evening but have fine weather for a majority of the day too, so don’t let this put you off.
Learn everything you need to know (and none of the stuff you don’t) about when to go to Kailua-Kona below. Be sure to check out the handy tools we’ve included to help you search for flights and transport, accommodation, and everything else you need to plan and book your trip.
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Kailua-Kona seasons
Before you continue, it’s important to know when the seasons are in Kailua-Kona as they might be different to yours depending on where in the world you’re travelling from. Kailua-Kona is in the Northern Hemisphere, so the seasons fall during these months:
| Season | Months |
|---|---|
| Summer | June to August |
| Autumn/fall | September to November |
| Winter | December to February |
| Spring | March to May |
Average temperatures in Kailua-Kona
If the temperature is a big factor for you to help you decide when to visit, the chart below shows the average minimum and maximum temperatures in Kailua-Kona for each month side-by-side so you can easily see the difference in weather throughout the year. To see the temperatures in both Celsius (°C) and Fahrenheit (°F), hover or tap the shaded boxes on the graph.
Kailua-Kona climate by month
If you already have a rough idea about which months you might want to travel, the section below shows a detailed breakdown of the climate in Kailua-Kona for each month so you can see if it all suits your wants and needs. Scroll down, or use the quick menu below to jump to your preferred month.
Jump to:
Kailua-Kona in January
- Average temperature: 22℃ (71℉)
- Average high temperature: 23℃ (73℉)
- Average low temperature: 21℃ (69℉)
- Average humidity: 73%
- Average sunny days: 18 days
- Average rainfall: 12mm (0") over 8 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Kailua-Kona in January, make sure you pack t-shirts and maybe a light jumper for the evenings.
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Kailua-Kona in February
- Average temperature: 22℃ (71℉)
- Average high temperature: 23℃ (73℉)
- Average low temperature: 21℃ (69℉)
- Average humidity: 71%
- Average sunny days: 14 days
- Average rainfall: 23mm (1") over 8 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Kailua-Kona in February, make sure you pack t-shirts and maybe a light jumper for the evenings.
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Kailua-Kona in March
- Average temperature: 22℃ (71℉)
- Average high temperature: 23℃ (73℉)
- Average low temperature: 21℃ (69℉)
- Average humidity: 73%
- Average sunny days: 14 days
- Average rainfall: 22mm (1") over 11 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Kailua-Kona in March, make sure you pack t-shirts and maybe a light jumper for the evenings.
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Kailua-Kona in April
- Average temperature: 22℃ (72℉)
- Average high temperature: 23℃ (73℉)
- Average low temperature: 21℃ (70℉)
- Average humidity: 77%
- Average sunny days: 8 days
- Average rainfall: 23mm (1") over 16 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Kailua-Kona in April, make sure you pack t-shirts and light clothing.
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Kailua-Kona in May
- Average temperature: 23℃ (73℉)
- Average high temperature: 24℃ (75℉)
- Average low temperature: 22℃ (72℉)
- Average humidity: 77%
- Average sunny days: 7 days
- Average rainfall: 25mm (1") over 17 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Kailua-Kona in May, make sure you pack t-shirts and light clothing.
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Kailua-Kona in June
- Average temperature: 23℃ (74℉)
- Average high temperature: 24℃ (75℉)
- Average low temperature: 22℃ (72℉)
- Average humidity: 78%
- Average sunny days: 8 days
- Average rainfall: 16mm (1") over 13 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Kailua-Kona in June, make sure you pack t-shirts and light clothing.
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Kailua-Kona in July
- Average temperature: 24℃ (75℉)
- Average high temperature: 25℃ (76℉)
- Average low temperature: 23℃ (73℉)
- Average humidity: 79%
- Average sunny days: 11 days
- Average rainfall: 20mm (1") over 13 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Kailua-Kona in July, make sure you pack t-shirts and light clothing.
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Kailua-Kona in August
- Average temperature: 24℃ (76℉)
- Average high temperature: 25℃ (77℉)
- Average low temperature: 24℃ (74℉)
- Average humidity: 79%
- Average sunny days: 10 days
- Average rainfall: 17mm (1") over 12 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Kailua-Kona in August, make sure you pack t-shirts and light clothing.
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Kailua-Kona in September
- Average temperature: 24℃ (76℉)
- Average high temperature: 25℃ (77℉)
- Average low temperature: 23℃ (74℉)
- Average humidity: 78%
- Average sunny days: 8 days
- Average rainfall: 26mm (1") over 15 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Kailua-Kona in September, make sure you pack t-shirts and light clothing.
Kailua-Kona in October
- Average temperature: 24℃ (76℉)
- Average high temperature: 25℃ (77℉)
- Average low temperature: 24℃ (74℉)
- Average humidity: 77%
- Average sunny days: 9 days
- Average rainfall: 20mm (1") over 14 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Kailua-Kona in October, make sure you pack t-shirts and light clothing.
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Kailua-Kona in November
- Average temperature: 24℃ (74℉)
- Average high temperature: 24℃ (76℉)
- Average low temperature: 23℃ (73℉)
- Average humidity: 74%
- Average sunny days: 12 days
- Average rainfall: 16mm (1") over 10 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Kailua-Kona in November, make sure you pack t-shirts and light clothing.
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Kailua-Kona in December
- Average temperature: 23℃ (73℉)
- Average high temperature: 23℃ (74℉)
- Average low temperature: 22℃ (71℉)
- Average humidity: 74%
- Average sunny days: 13 days
- Average rainfall: 17mm (1") over 11 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Kailua-Kona in December, make sure you pack t-shirts and light clothing.
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