Last updated: August 27, 2025
In December, the average temperature in San Isidro Buenos Aires, Mexico hovers around 16°C (62°F). Expect a range from a cool 4°C (40°F) to a warm 29°C (85°F). During this month, anticipate 72 mm (2.8 in) of precipitation spread over 11 days, accompanied by an average humidity of 88%. Be prepared for varying weather as you explore this unique destination!
In December in San Isidro Buenos Aires, the average temperature is 16°C (62°F). Maximum temperatures can reach up to 29°C (85°F), while minima can drop as low as 4°C (40°F). This makes it a great time to visit San Isidro Buenos Aires, as you can enjoy mild weather with the possibility of warm days and cool evenings.
In San Isidro Buenos Aires in December, the precipitation amount is 72 mm (2.8 in) over the course of 11 days.
In San Isidro Buenos Aires in December humidity is 88%. With an average temperature of 16°C (62°F), this humidity feels like a heavy blanket enveloping you, making each step feel sluggish and draining, which can be quite challenging for travelers.
In San Isidro Buenos Aires in December, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in San Isidro Buenos Aires.
UV Risk Categories
Weather in San Isidro Buenos Aires varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in San Isidro Buenos Aires, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 16°C (61°F) | 96 mm (3.8 inches) | 84% | very high |
| February Weather | 17°C (64°F) | 83 mm (3.3 inches) | 80% | extreme |
| March Weather | 19°C (66°F) | 87 mm (3.4 inches) | 73% | extreme |
| April Weather | 21°C (70°F) | 124 mm (4.9 inches) | 67% | extreme |
| May Weather | 22°C (72°F) | 181 mm (7.1 inches) | 72% | extreme |
| June Weather | 21°C (71°F) | 375 mm (14.8 inches) | 73% | extreme |
| July Weather | 21°C (70°F) | 239 mm (9.4 inches) | 76% | extreme |
| August Weather | 21°C (70°F) | 322 mm (12.7 inches) | 80% | extreme |
| September Weather | 21°C (70°F) | 402 mm (15.8 inches) | 84% | extreme |
| October Weather | 20°C (68°F) | 328 mm (12.9 inches) | 89% | extreme |
| November Weather | 18°C (64°F) | 176 mm (6.9 inches) | 88% | very high |
| December Weather | 16°C (62°F) | 72 mm (2.8 inches) | 88% | very high |