Last updated: June 24, 2025
In December, the average temperature in San Augustine, United States hovers around 12°C (55°F). Expect a range where temperatures can dip to a chilly 0°C (33°F) or soar to a warm 27°C (81°F). With 130 mm (5.1 in) of precipitation spread over approximately 9 days, be prepared for some rain. The air will feel quite humid, with an average humidity of 88%, creating a lush environment.
In December in San Augustine, the average temperature is 12°C (55°F), with maximums reaching up to 27°C (81°F) and minimums dropping as low as 0°C (33°F). This range makes it an ideal time for travelers to experience diverse weather conditions, so packing layers is advisable.
In San Augustine in December, the precipitation amount is 130 mm (5.1 in) over the course of 9 days.
In San Augustine in December humidity is 88%. With an average temperature of 12°C (55°F), this humidity feels like a damp chill that clings to your skin, making outdoor exploration more challenging and requiring extra layers for comfort.
In San Augustine in December, the maximum UV index reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in San Augustine for better planning.
UV Risk Categories
Weather in San Augustine varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in San Augustine, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 10°C (51°F) | 107 mm (4.2 inches) | 81% | moderate |
| February Weather | 12°C (54°F) | 147 mm (5.8 inches) | 81% | high |
| March Weather | 17°C (63°F) | 124 mm (4.9 inches) | 79% | very high |
| April Weather | 19°C (67°F) | 156 mm (6.1 inches) | 80% | extreme |
| May Weather | 24°C (76°F) | 168 mm (6.6 inches) | 81% | extreme |
| June Weather | 27°C (81°F) | 147 mm (5.8 inches) | 76% | extreme |
| July Weather | 28°C (83°F) | 96 mm (3.8 inches) | 73% | extreme |
| August Weather | 28°C (83°F) | 145 mm (5.7 inches) | 71% | extreme |
| September Weather | 26°C (79°F) | 148 mm (5.8 inches) | 72% | very high |
| October Weather | 21°C (70°F) | 121 mm (4.8 inches) | 73% | very high |
| November Weather | 15°C (59°F) | 71 mm (2.8 inches) | 83% | high |
| December Weather | 12°C (55°F) | 130 mm (5.1 inches) | 88% | moderate |