Last updated: August 22, 2025
In Willow Grove, Australia, the average temperature in December hovers around 16°C (62°F). You might experience a range of temperatures, with a minimum dipping to 4°C (40°F) and a maximum soaring to 37°C (99°F). During this month, expect about 92 mm (3.6 in) of precipitation spread over 10 days, accompanied by an average humidity of 67%.
In December in Willow Grove, the average temperature is 16°C (62°F), with maximums reaching 37°C (99°F) and minimums dropping as low as 4°C (40°F). Be prepared for a wide range of temperatures when traveling to Willow Grove during this month.
In Willow Grove in December, the total precipitation amount is 92 mm (3.6 in), which falls over the course of 10 days.
In Willow Grove in December, humidity is 67%. With an average temperature of 16°C (62°F), this humidity feels like a warm, enveloping embrace, making outdoor explorations comfortable yet slightly damp, perfect for leisurely strolls and enjoying the vibrant local culture.
In Willow Grove in December, the maximum UV index is 14, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, so it's crucial to take precautions. For the detailed hourly UV index in Willow Grove, you can check here.
UV Risk Categories
Weather in Willow Grove varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Willow Grove, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 19°C (66°F) | 59 mm (2.3 inches) | 64% | extreme |
| February Weather | 17°C (63°F) | 61 mm (2.4 inches) | 65% | extreme |
| March Weather | 16°C (62°F) | 60 mm (2.4 inches) | 70% | extreme |
| April Weather | 13°C (56°F) | 68 mm (2.7 inches) | 75% | high |
| May Weather | 10°C (50°F) | 75 mm (2.9 inches) | 79% | moderate |
| June Weather | 8°C (46°F) | 61 mm (2.4 inches) | 81% | moderate |
| July Weather | 8°C (46°F) | 69 mm (2.7 inches) | 82% | moderate |
| August Weather | 8°C (46°F) | 98 mm (3.9 inches) | 80% | moderate |
| September Weather | 10°C (50°F) | 94 mm (3.7 inches) | 77% | high |
| October Weather | 12°C (54°F) | 98 mm (3.9 inches) | 71% | very high |
| November Weather | 14°C (58°F) | 97 mm (3.8 inches) | 71% | extreme |
| December Weather | 16°C (62°F) | 92 mm (3.6 inches) | 67% | extreme |