Last updated: August 22, 2025
In Mountain River, Australia, the average temperature in December hovers around 15°C (59°F). Temperatures can vary significantly, with a minimum of 5°C (41°F) and a maximum reaching 35°C (95°F). Be prepared for 66 mm (2.6 in) of precipitation over approximately 11 days, coupled with an average humidity level of 70%. Enjoy exploring this dynamic climate!
In December in Mountain River, the average temperature is 15°C (59°F). The maximum can reach 35°C (95°F) and the minimum can be as low as 5°C (41°F). This makes it a great time for travelers to experience a mild climate with the possibility of warm days ideal for outdoor activities.
In Mountain River in December, the precipitation amount is 66 mm (2.6 in) spread over 11 days.
In Mountain River in December, humidity is 70%. With an average temperature of 15°C (59°F), this humidity feels like a warm embrace, making it slightly uncomfortable while traveling, as the moist air clings to your skin and can leave you feeling slightly lethargic.
In Mountain River in December, the maximum UV index reaches 13, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take protective measures. For detailed information, you can check the Hourly UV Index in Mountain River.
UV Risk Categories
Weather in Mountain River varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Mountain River, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 17°C (63°F) | 40 mm (1.6 inches) | 68% | extreme |
| February Weather | 16°C (60°F) | 48 mm (1.9 inches) | 68% | extreme |
| March Weather | 15°C (60°F) | 65 mm (2.6 inches) | 73% | very high |
| April Weather | 13°C (55°F) | 48 mm (1.9 inches) | 81% | high |
| May Weather | 10°C (51°F) | 53 mm (2.1 inches) | 86% | moderate |
| June Weather | 9°C (48°F) | 55 mm (2.2 inches) | 85% | low |
| July Weather | 8°C (46°F) | 46 mm (1.8 inches) | 86% | low |
| August Weather | 8°C (47°F) | 69 mm (2.7 inches) | 84% | moderate |
| September Weather | 10°C (50°F) | 54 mm (2.1 inches) | 82% | high |
| October Weather | 12°C (53°F) | 85 mm (3.3 inches) | 77% | very high |
| November Weather | 14°C (57°F) | 69 mm (2.7 inches) | 77% | very high |
| December Weather | 15°C (59°F) | 66 mm (2.6 inches) | 70% | extreme |