Last updated: June 24, 2025
In Lima, United States, the average temperature in December hovers around 2°C (35°F), with minimums plunging to -23°C (-9°F) and maximums reaching a comfortable 17°C (64°F). Expect about 67 mm (2.6 in) of precipitation over 10 days, contributing to an average humidity of 86%. Be prepared for a chilly, damp month!
In December in Lima, the average temperature is 2°C (35°F). Maximum temperatures can reach 17°C (64°F), while minimums can drop to a chilling -23°C (-9°F). Be prepared for significant temperature fluctuations and dress accordingly when traveling during this time.
In Lima in December, the total precipitation amount is 67 mm (2.6 in) over a period of 10 days.
In Lima in December humidity is 86%. With an average temperature of 2°C (35°F), this humidity feels like a damp chill that seeps into your bones, making traveling quite uncomfortable as your clothes cling to you and the cold air cuts through any warmth you try to find.
In Lima 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 Lima, you can visit Hourly UV Index in Lima.
UV Risk Categories
Weather in Lima varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Lima, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -2°C (29°F) | 73 mm (2.9 inches) | 88% | moderate |
| February Weather | 0°C (32°F) | 91 mm (3.6 inches) | 87% | moderate |
| March Weather | 5°C (41°F) | 99 mm (3.9 inches) | 87% | high |
| April Weather | 10°C (51°F) | 103 mm (4.0 inches) | 87% | very high |
| May Weather | 17°C (63°F) | 127 mm (5.0 inches) | 81% | very high |
| June Weather | 22°C (72°F) | 122 mm (4.8 inches) | 82% | very high |
| July Weather | 24°C (76°F) | 104 mm (4.1 inches) | 81% | very high |
| August Weather | 23°C (73°F) | 92 mm (3.6 inches) | 78% | very high |
| September Weather | 20°C (68°F) | 71 mm (2.8 inches) | 78% | very high |
| October Weather | 14°C (57°F) | 93 mm (3.6 inches) | 82% | high |
| November Weather | 5°C (42°F) | 85 mm (3.3 inches) | 89% | moderate |
| December Weather | 2°C (35°F) | 67 mm (2.6 inches) | 86% | low |