Last updated: June 24, 2025
In Hayti, United States, the average temperature in December hovers around -5°C (24°F). However, be prepared for some dramatic swings, as temperatures can plunge to a chilling -26°C (-14°F) or reach a mild 13°C (56°F). During this month, you can expect about 30 mm (1.2 in) of precipitation over approximately 5 days. With an average humidity of 84%, it's crucial to bundle up and stay warm!
In December in Hayti, the average temperature is -5°C (24°F), with a maximum that can reach 13°C (56°F) and a minimum that can drop as low as -26°C (-14°F). Travelers should be prepared for a wide range of temperatures, so dressing in layers and bringing warm clothing is essential.
In Hayti in December, the precipitation amount is 30 mm (1.2 in) over the course of 5 days.
In Hayti in December, humidity is 84%. With an average temperature of -5°C (24°F), this humidity feels like an icy blanket wrapped around you, making the air feel even colder and more biting, which can be quite uncomfortable for traveling.
In Hayti in December, the maximum UV index is 2, which corresponds to a low exposure category. With this level of UV radiation, the time to burn is approximately 45 minutes. To learn more about the hourly UV index in Hayti, you can visit Hourly UV Index in Hayti.
UV Risk Categories
Weather in Hayti varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Hayti, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -9°C (15°F) | 21 mm (0.8 inches) | 85% | moderate |
| February Weather | -10°C (15°F) | 17 mm (0.7 inches) | 89% | moderate |
| March Weather | -1°C (31°F) | 50 mm (2.0 inches) | 81% | high |
| April Weather | 5°C (41°F) | 70 mm (2.8 inches) | 82% | very high |
| May Weather | 13°C (57°F) | 85 mm (3.3 inches) | 76% | very high |
| June Weather | 21°C (70°F) | 78 mm (3.1 inches) | 81% | very high |
| July Weather | 23°C (73°F) | 80 mm (3.2 inches) | 82% | very high |
| August Weather | 21°C (70°F) | 101 mm (4.0 inches) | 83% | very high |
| September Weather | 17°C (63°F) | 88 mm (3.5 inches) | 82% | very high |
| October Weather | 8°C (46°F) | 79 mm (3.1 inches) | 82% | moderate |
| November Weather | 0°C (33°F) | 23 mm (0.9 inches) | 87% | moderate |
| December Weather | -5°C (24°F) | 30 mm (1.2 inches) | 84% | low |