December Weather in Kailua

Last updated: March 2, 2024

The weather in Kailua, United States, during December is characterized by an average temperature of 23°C (74°F). Highs can soar to 26°C (80°F), while lows may dip to 20°C (69°F). Typically, the humidity level in Kailua throughout December hovers around 79%.

20°C (69°F)

Minimum temperature

23°C (74°F)

Average temperature

26°C (80°F)

Maximum temperature

79%

Humidity

Precipitation and Sunshine hours

In December, Kailua averages 87 mm (3.4 inches) of rainfall, typically over the course of 16 rainy days. The month enjoys an average of 10 hours 50 minutes of daylight, with the sun shining for approximately 8 hours 13 minutes each day. Additionally, there is a 36% probability of sunny days during this period.

87 mm (3.4 inches)

Precipitation

16 rainy days

Rainy days

8 hours 13 minutes

Sunshine hours

36%

Chance of sun

UV Index

In December, the UV Index in Kailua reaches a maximum of 7, indicating a level of High exposure. The most intense UV radiation typically occurs between 12:00 and 14:00, during which unprotected skin may burn in as little as 25 minutes.

Average solar exposure data for the current time of the year. Actual values may vary and depend on many factors, such as cloud cover, vegetation cover, surface type, etc.
  07:00 08:00 09:00 10:00 11:00 12:00 13:00 14:00 15:00 16:00 17:00 18:00 19:00
UVI 1 1 2 4 6 7 7 6 3 2 1 0 0
Exposure Low Moderate High Moderate Low
Time to burn 45 min 30 min 25 min 30 min 45 min

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