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%.
Minimum temperature
Average temperature
Maximum temperature
Humidity
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.
Precipitation
Rainy days
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Chance of sun
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.
| 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 | ||||||||