Last updated: March 2, 2024
The weather in Portland, Australia, during December is characterized by an average temperature of 19°C (66°F). Highs can soar to 33°C (92°F), while lows may dip to 7°C (45°F). Typically, the humidity level in Portland throughout December hovers around 62%.
Minimum temperature
Average temperature
Maximum temperature
Humidity
In December, Portland averages 76 mm (3.0 inches) of rainfall, typically over the course of 10 rainy days. The month enjoys an average of 14 hours 18 minutes of daylight, with the sun shining for approximately 10 hours 26 minutes each day. Additionally, there is a 39% probability of sunny days during this period.
Precipitation
Rainy days
Sunshine hours
Chance of sun
In December, the UV Index in Portland 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 | 14 | 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 | ||||||