Kailua-Kona Weather in September

Thinking of visiting Kailua-Kona in September? Expect high temperatures reaching 26°C (79°F) during the day, dropping to 22°C (72°F) at night. Heavy showers are common during the rainy season.

Rainfall in Kailua-Kona in September

Kailua-Kona is in the rainy season in September, with rain on around 16 days and an average of 356 mm (14 in). The rain this month falls heavily when it arrives, so waterproofs are worth keeping handy.

Temperature in Kailua-Kona in September

In September, expect high temperatures in Kailua-Kona, with highs of 26°C (79°F) and lows of 22°C (72°F) at night. The days can feel warmer than the evenings, so packing for both parts of the day is a good idea. With lows of 22°C (72°F), the nights are warm and generally comfortable.

Sunshine in Kailua-Kona in September

Expect a lot of sunshine this month, with about 260 hours of sun. Showers typically arrive in the late afternoon or evening, keeping mornings and early afternoons sunny. Even during the wet season, there's plenty of sunshine for sightseeing.

September in Kailua-Kona has its charm, but if you're looking for destinations with pleasant temperatures and sunny skies, our weather planner can help you explore other options in the world.

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 Kailua-Kona's climate page.

Kailua-Kona Temperature in September

Min Temperature 22°C (72°F)  

Max Temperature 26°C (79°F)  

Chance of Rain 55%  

Precipitation 356 mm (14 in)  

Rainy days 16 days  

Sunshine 260 hours  

Percentage Sunshine  

What to Wear in Kailua-Kona in September

Warm but pleasant conditions in Kailua-Kona in September. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. It's going to pour! Pack a good poncho and prepare for very wet conditions. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.

What To Do in Kailua-Kona in September

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

Swimming

8/10

Cycling

7/10

Walking

7/10

Camping

6/10

Outdoor sports

7/10

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 Kailua-Kona's climate page.

More climate data for Kailua-Kona

Temperature Rainfall Sunshine

See the full Kailua-Kona climate overview or explore weather in the United States of America.