Last updated: March 2, 2024
The weather in Katoomba, Australia, during December is characterized by an average temperature of 18°C (65°F). Highs can soar to 34°C (93°F), while lows may dip to 8°C (46°F). Typically, the humidity level in Katoomba throughout December hovers around 68%.
Minimum temperature
Average temperature
Maximum temperature
Humidity
In December, Katoomba averages 133 mm (5.2 inches) of rainfall, typically over the course of 16 rainy days. The month enjoys an average of 14 hours 20 minutes of daylight, with the sun shining for approximately 10 hours 31 minutes each day. Additionally, there is a 34% probability of sunny days during this period.
Precipitation
Rainy days
Sunshine hours
Chance of sun
In December, the UV Index in Katoomba reaches a maximum of 15, indicating a level of Extreme exposure. The most intense UV radiation typically occurs between 13:00 and 15:00, during which unprotected skin may burn in as little as 10 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 | 3 | 5 | 8 | 12 | 14 | 15 | 13 | 11 | 7 | 4 | 2 | 1 |
| Exposure | Low | Moderate | VeryHigh | Extreme | High | Moderate | Low | ||||||
| Time to burn | 45 min | 30 min | 15 min | 10 min | 25 min | 30 min | 45 min | ||||||