Kailua Weather in December

With daytime temperatures of 26°C (79°F) and nighttime lows of 22°C (72°F), December in Kailua brings high temperatures during the day. It is also the wettest month of the year, so pack an umbrella.

Rainfall in Kailua in December

With this being the wettest month, keeping an umbrella on hand might save you from getting wet from a sudden shower. Based on our climate data of the past 30 years, about 11 days of rain are anticipated, with 61 mm (2.4 in) on average. The rainfall pattern this month is fairly balanced. Showers tend to be moderate rather than extreme.

Temperature in Kailua in December

Kailua in December has perfect weather. Days reach 26°C (79°F) and nights cool to 22°C (72°F). This gives the month a fairly typical daily rhythm, with warmer afternoons and more comfortable nights. At 22°C (72°F) overnight, nights are warm enough to sit outside comfortably in light clothing.

Sunshine in Kailua in December

Expect a lot of sunshine this month, with about 199 hours of sun. These sunny conditions add to the overall experience.

Wind Speed in Kailua in December

In December, average wind speeds reach 4 m/s (8 knots), leading to light to moderate breezes. Conditions vary from day to day, with both calm and windier periods.

Average water temperature in December

The water is 25°C (77°F) this month — warm enough that getting in requires no effort at all. Good conditions for swimming, snorkeling, or just floating around.

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

Kailua Temperature in December

Min Temperature 22°C (72°F)  

Max Temperature 26°C (79°F)  

Water Temperature 25°C (77°F) *  

Chance of Rain 37%  

Precipitation 61 mm (2.4 in)  

Rainy days 11 days  

Humidity 72% *  

Windspeed 4 m/s (8 knots) *  

Sunshine 199 hours *  

Percentage Sunshine 59% *  

* Data from: Honolulu, the United States of America (20 KM, 12 Miles).

What to Wear in Kailua in December

Warm but pleasant conditions in Kailua in December. 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. Wet weather is likely, so pack waterproof gear for multiple rainy days. Expect water temperatures of around 25°C (77°F), which is ideal for taking a refreshing dip. Bring swimwear and consider packing a towel for drying off. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.

What To Do in Kailua in December

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

Swimming

7/10

Cycling

8/10

Walking

8/10

Camping

8/10

Outdoor sports

8/10

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's climate page.

More climate data for Kailua

Temperature Rainfall Sunshine Humidity Wind Speed Water Temp

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