Last updated: August 27, 2025
In December, the average temperature in San Isidro, Philippines is a pleasant 27°C (81°F). Expect a comfortable range, with minimums around 25°C (77°F) and maximums peaking at 29°C (85°F). Be prepared for some rain, as the area sees an average precipitation of 477 mm (18.8 in) over the course of 30 days, accompanied by high humidity levels of 88%.
In December in San Isidro, the average temperature is 27°C (81°F). The maximum can reach 29°C (85°F), while the minimum can be as low as 25°C (77°F). This pleasant weather makes San Isidro an ideal destination for travelers seeking warmth and sunshine.
In San Isidro, in December, the precipitation amount is 477 mm (18.8 in) over a span of 30 days.
In San Isidro in December, humidity is 88%. With an average temperature of 27°C (81°F), this humidity feels like a warm, thick blanket wrapping around you as you travel, making every step feel more laborious and requiring frequent breaks to cool down and hydrate.
In San Isidro 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 Isidro.
UV Risk Categories
Weather in San Isidro varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in San Isidro, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 27°C (80°F) | 312 mm (12.3 inches) | 90% | extreme |
| February Weather | 26°C (80°F) | 264 mm (10.4 inches) | 90% | extreme |
| March Weather | 27°C (80°F) | 202 mm (7.9 inches) | 90% | extreme |
| April Weather | 27°C (81°F) | 137 mm (5.4 inches) | 88% | extreme |
| May Weather | 28°C (82°F) | 187 mm (7.4 inches) | 83% | extreme |
| June Weather | 28°C (82°F) | 210 mm (8.3 inches) | 81% | extreme |
| July Weather | 28°C (83°F) | 216 mm (8.5 inches) | 80% | extreme |
| August Weather | 28°C (83°F) | 178 mm (7.0 inches) | 81% | extreme |
| September Weather | 28°C (82°F) | 167 mm (6.6 inches) | 84% | extreme |
| October Weather | 28°C (82°F) | 269 mm (10.6 inches) | 81% | extreme |
| November Weather | 27°C (81°F) | 282 mm (11.1 inches) | 84% | extreme |
| December Weather | 27°C (81°F) | 477 mm (18.8 inches) | 88% | extreme |