Last updated: August 27, 2025
In December, the average temperature in San Jose, Philippines reaches a warm 27°C (82°F). With a minimum of 24°C (76°F) and a maximum of 29°C (85°F), it’s perfect for outdoor activities. However, be prepared for some rain, as precipitation averages 162 mm (6.4 in) over 11 days. The average humidity is quite high at 86%, making the air feel pleasantly tropical.
In December in San Jose, the average temperature is 27°C (82°F). The maximum can reach 29°C (85°F), while the minimum can drop to as low as 24°C (76°F). This makes it an ideal time for traveling, as you can enjoy warm weather with comfortable temperatures.
In San Jose in December, the total precipitation amount is 162 mm (6.4 in), which falls over the course of 11 days.
In San Jose in December humidity is 86%. With an average temperature of 27°C (82°F), this humidity feels like a warm, heavy blanket enveloping you, making outdoor activities a challenge and necessitating frequent breaks to stay hydrated while traveling.
In San Jose 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 Jose.
UV Risk Categories
Weather in San Jose varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in San Jose, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 27°C (81°F) | 39 mm (1.5 inches) | 78% | extreme |
| February Weather | 27°C (80°F) | 19 mm (0.8 inches) | 75% | extreme |
| March Weather | 27°C (82°F) | 22 mm (0.9 inches) | 74% | extreme |
| April Weather | 28°C (83°F) | 28 mm (1.1 inches) | 76% | extreme |
| May Weather | 29°C (84°F) | 79 mm (3.1 inches) | 76% | extreme |
| June Weather | 28°C (83°F) | 352 mm (13.9 inches) | 81% | extreme |
| July Weather | 27°C (82°F) | 633 mm (24.9 inches) | 84% | extreme |
| August Weather | 27°C (82°F) | 450 mm (17.7 inches) | 85% | extreme |
| September Weather | 27°C (82°F) | 415 mm (16.3 inches) | 85% | extreme |
| October Weather | 28°C (82°F) | 373 mm (14.7 inches) | 82% | extreme |
| November Weather | 28°C (82°F) | 142 mm (5.6 inches) | 85% | extreme |
| December Weather | 27°C (82°F) | 162 mm (6.4 inches) | 86% | extreme |