Last updated: August 27, 2025
In San Antonio, Philippines, the average temperature in December hovers around 27°C (81°F), with daily variations ranging from a minimum of 25°C (77°F) to a maximum of 31°C (88°F). Expect 132 mm (5.2 in) of precipitation over 19 days, contributing to the region's average humidity of a sultry 87%.
In December in San Antonio, the average temperature is 27°C (81°F). Maximums can reach 31°C (88°F), while minimums can be as low as 25°C (77°F). This mild and warm climate makes it an ideal destination for travelers seeking pleasant weather.
In San Antonio in December, the precipitation amount is 132 mm (5.2 in) over the course of 19 days.
In San Antonio in December, humidity is 87%. With an average temperature of 27°C (81°F), this humidity feels like walking through a warm, damp blanket, making traveling feel heavy and exhausting.
In San Antonio in December, the maximum UV index reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, you can check the Hourly UV Index in San Antonio.
UV Risk Categories
Weather in San Antonio varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in San Antonio, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 26°C (80°F) | 189 mm (7.4 inches) | 90% | extreme |
| February Weather | 26°C (80°F) | 117 mm (4.6 inches) | 92% | extreme |
| March Weather | 27°C (80°F) | 123 mm (4.8 inches) | 90% | extreme |
| April Weather | 27°C (81°F) | 94 mm (3.7 inches) | 87% | extreme |
| May Weather | 27°C (81°F) | 168 mm (6.6 inches) | 83% | extreme |
| June Weather | 27°C (82°F) | 150 mm (5.9 inches) | 83% | extreme |
| July Weather | 27°C (82°F) | 173 mm (6.8 inches) | 82% | extreme |
| August Weather | 27°C (82°F) | 135 mm (5.3 inches) | 83% | extreme |
| September Weather | 27°C (82°F) | 111 mm (4.4 inches) | 85% | extreme |
| October Weather | 28°C (82°F) | 137 mm (5.4 inches) | 82% | extreme |
| November Weather | 27°C (81°F) | 99 mm (3.9 inches) | 83% | extreme |
| December Weather | 27°C (81°F) | 132 mm (5.2 inches) | 87% | extreme |