Last updated: March 2, 2024
The weather in Koloa, United States, during January is characterized by an average temperature of 22°C (71°F). Highs can soar to 25°C (78°F), while lows may dip to 18°C (65°F). Typically, the humidity level in Koloa throughout January hovers around 78%.
Minimum temperature
Average temperature
Maximum temperature
Humidity
In January, Koloa averages 38 mm (1.5 inches) of rainfall, typically over the course of 10 rainy days. The month enjoys an average of 10 hours 57 minutes of daylight, with the sun shining for approximately 6 hours 58 minutes each day. Additionally, there is a 51% probability of sunny days during this period.
Precipitation
Rainy days
Sunshine hours
Chance of sun
In January, the UV Index in Koloa reaches a maximum of 8, indicating a level of VeryHigh exposure. The most intense UV radiation typically occurs between 13:00 and 15:00, during which unprotected skin may burn in as little as 15 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 | 8 | 7 | 5 | 3 | 1 | 1 | 0 |
| Exposure | Low | Moderate | High | VeryHigh | High | Moderate | Low | ||||||
| Time to burn | 45 min | 30 min | 25 min | 15 min | 25 min | 30 min | 45 min | ||||||