Last updated: August 27, 2025
In December, the average temperature in Arroyo San Isidro, Mexico is a pleasant 23°C (73°F). Expect minimums of 14°C (58°F) and maximums reaching 33°C (91°F). Rainfall totals around 45 mm (1.8 in) spread over 10 days, accompanied by a high average humidity of 91%. Whether you're exploring or relaxing, this month offers a tropical vibe perfect for outdoor adventures! 🌴✨
In December in Arroyo San Isidro, the average temperature is 23°C (73°F). Maximums can reach 33°C (91°F) and minimums can be as low as 14°C (58°F). This mild climate makes Arroyo San Isidro an ideal destination for travelers seeking pleasant weather.
In Arroyo San Isidro in December, the precipitation amount is 45 mm (1.8 in) spread over a duration of 10 days.
In Arroyo San Isidro in December, humidity is 91%. With an average temperature of 23°C (73°F), this humidity feels like a heavy blanket wrapping around you, making travel feel sticky and exhausting, as the heat clings to your skin and draining your energy with every step.
In Arroyo San Isidro in December, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Arroyo San Isidro.
UV Risk Categories
Weather in Arroyo San Isidro varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Arroyo San Isidro, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 22°C (72°F) | 46 mm (1.8 inches) | 88% | very high |
| February Weather | 23°C (74°F) | 36 mm (1.4 inches) | 86% | extreme |
| March Weather | 25°C (77°F) | 25 mm (1.0 inches) | 84% | extreme |
| April Weather | 27°C (82°F) | 32 mm (1.3 inches) | 81% | extreme |
| May Weather | 29°C (85°F) | 58 mm (2.3 inches) | 82% | extreme |
| June Weather | 28°C (83°F) | 288 mm (11.3 inches) | 81% | extreme |
| July Weather | 28°C (82°F) | 223 mm (8.8 inches) | 81% | extreme |
| August Weather | 28°C (83°F) | 239 mm (9.4 inches) | 82% | extreme |
| September Weather | 28°C (82°F) | 310 mm (12.2 inches) | 86% | extreme |
| October Weather | 27°C (80°F) | 267 mm (10.5 inches) | 90% | extreme |
| November Weather | 24°C (76°F) | 127 mm (5.0 inches) | 91% | very high |
| December Weather | 23°C (73°F) | 45 mm (1.8 inches) | 91% | very high |