Keauhou Weather in September

With daytime temperatures of 25°C (77°F) and nighttime lows of 20°C (68°F), September in Keauhou brings high temperatures during the day. Do keep in mind that September is part of the rainy season, with frequent and often heavy rainfall.

Rainfall in Keauhou in September

As part of the rainy season, Keauhou sees around 17 days of rain in September, with an average of 427 mm (17 in). The rain this month falls heavily when it arrives, so waterproofs are worth keeping handy.

Temperature in Keauhou in September

Temperatures in Keauhou in September top out at 25°C (77°F) and drop to 20°C (68°F) overnight. This kind of day-to-night contrast is typical for this time of year. With overnight lows of 20°C (68°F), evenings stay pleasantly warm.

Sunshine in Keauhou in September

The days are predominantly sunny, with an estimated total of around 260 hours of sunshine. Rain is often only seen in the afternoon or evening, leaving clear skies for most of the day. This results in rainy months that still feel bright and are suitable for travel.

If you prefer dry days with pleasant temperatures, September may not be the ideal month to visit Keauhou. Our weather planner can help you explore destinations with more pleasant weather conditions.

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• January
• February
• March
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• May
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• October
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• December

For a detailed overview over the year and the best time to visit the United States of America, check out our Keauhou's climate page.

Keauhou Temperature in September

Min Temperature 20°C (68°F)  

Max Temperature 25°C (77°F)  

Chance of Rain 56%  

Precipitation 427 mm (17 in)  

Rainy days 17 days  

Sunshine 260 hours *  

Percentage Sunshine *  

* Data from: Kailua-Kona, the United States of America (9 KM, 5 Miles).

What to Wear in Keauhou in September

For Keauhou in September, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. Also bring a poncho, it will rain a lot! Waterproof everything you can. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.

What To Do in Keauhou in September

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

8/10

Camping

6/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit the United States of America, check out our Keauhou's climate page.

More climate data for Keauhou

Temperature Rainfall Sunshine

See the full Keauhou climate overview or explore weather in the United States of America.