Last updated: August 27, 2025
In Primero de Mayo, Mexico, the average temperature for December hovers around 13°C (56°F), providing a mild climate for outdoor activities. However, be prepared for a temperature range that can swing from a brisk -7°C (20°F) to a warm 29°C (84°F). This month sees precipitation of 9 mm (0.3 in) over 1 day, contributing to an average humidity level of 83%. Whether you're braving the chill or enjoying the warmth, this month offers a unique experience for all!
In December in Primero de Mayo, the average temperature is 13°C (56°F), with maximums reaching up to 29°C (84°F) and minimums dropping as low as -7°C (20°F). This wide temperature range suggests that travelers should be prepared for both warm days and chilly nights.
In Primero de Mayo in December, the precipitation amount is 9 mm (0.3 in) over the course of 1 day.
In Primero de Mayo in December humidity is 83%. With an average temperature of 13°C (56°F), this humidity feels like a damp blanket wrapping around you, making travel a bit uncomfortable as the air feels heavy and the moisture clings to your skin.
In Primero de Mayo in December, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more 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 | 13°C (55°F) | 11 mm (0.4 inches) | 71% | very high |
| February Weather | 15°C (59°F) | 10 mm (0.4 inches) | 64% | extreme |
| March Weather | 18°C (65°F) | 5 mm (0.2 inches) | 49% | extreme |
| April Weather | 20°C (69°F) | 2 mm (0.1 inches) | 47% | extreme |
| May Weather | 23°C (74°F) | 9 mm (0.3 inches) | 55% | extreme |
| June Weather | 24°C (75°F) | 46 mm (1.8 inches) | 77% | extreme |
| July Weather | 21°C (71°F) | 139 mm (5.5 inches) | 82% | extreme |
| August Weather | 22°C (71°F) | 91 mm (3.6 inches) | 83% | extreme |
| September Weather | 19°C (67°F) | 126 mm (4.9 inches) | 86% | extreme |
| October Weather | 19°C (66°F) | 48 mm (1.9 inches) | 83% | extreme |
| November Weather | 16°C (61°F) | 12 mm (0.5 inches) | 80% | very high |
| December Weather | 13°C (56°F) | 9 mm (0.3 inches) | 83% | high |