Last updated: August 27, 2025
In December, the average temperature in Primero de Mayo, Mexico is a mild 15°C (58°F). Expect a range from a chilly minimum of 0°C (32°F) to a pleasant maximum of 27°C (80°F). With an average humidity of 88%, the air can feel quite damp, but you'll encounter very little rain, with just 6 mm (0.2 in) over 0 days.
In December in Primero de Mayo, the average temperature is 15°C (58°F). Maximums can reach 27°C (80°F) and minimums can be as low as 0°C (32°F). It's a great time for travelers to enjoy mild weather, making it perfect for outdoor activities and sightseeing.
In Primero de Mayo in December, the total precipitation amount is 6 mm (0.2 in), spread over a duration of 0 days.
In Primero de Mayo in December humidity is 88%. With an average temperature of 15°C (58°F), this humidity feels like a heavy blanket enveloping you, making travel somewhat uncomfortable and sticky, as every step seems to draw out the moisture from your skin.
In Primero de Mayo 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 Primero de Mayo.
UV Risk Categories
Weather in Primero de Mayo varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Primero de Mayo, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 14°C (58°F) | 8 mm (0.3 inches) | 84% | very high |
| February Weather | 16°C (61°F) | 6 mm (0.3 inches) | 78% | extreme |
| March Weather | 18°C (65°F) | 18 mm (0.7 inches) | 75% | extreme |
| April Weather | 19°C (67°F) | 44 mm (1.7 inches) | 70% | extreme |
| May Weather | 19°C (67°F) | 106 mm (4.2 inches) | 77% | extreme |
| June Weather | 19°C (66°F) | 215 mm (8.5 inches) | 76% | extreme |
| July Weather | 18°C (65°F) | 165 mm (6.5 inches) | 68% | extreme |
| August Weather | 18°C (65°F) | 209 mm (8.2 inches) | 70% | extreme |
| September Weather | 18°C (65°F) | 251 mm (9.9 inches) | 82% | extreme |
| October Weather | 17°C (64°F) | 102 mm (4.0 inches) | 91% | extreme |
| November Weather | 16°C (61°F) | 25 mm (1.0 inches) | 89% | very high |
| December Weather | 15°C (58°F) | 6 mm (0.2 inches) | 88% | very high |