Last updated: March 2, 2024
The weather in Kapa'a, United States, during January is characterized by an average temperature of 22°C (73°F). Highs can soar to 25°C (77°F), while lows may dip to 20°C (69°F). Typically, the humidity level in Kapa'a throughout January hovers around 78%.
Minimum temperature
Average temperature
Maximum temperature
Humidity
In January, Kapa'a averages 60 mm (2.3 inches) of rainfall, typically over the course of 11 rainy days. The month enjoys an average of 10 hours 56 minutes of daylight, with the sun shining for approximately 6 hours 58 minutes each day. Additionally, there is a 52% probability of sunny days during this period.
Precipitation
Rainy days
Sunshine hours
Chance of sun
In January, the UV Index in Kapa'a 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 | 0 | 1 | 2 | 4 | 6 | 7 | 7 | 6 | 5 | 3 | 1 | 1 | 0 |
| Exposure | Low | Moderate | High | Moderate | Low | ||||||||
| Time to burn | 45 min | 30 min | 25 min | 30 min | 45 min | ||||||||