Last updated: June 24, 2025
In December, the average temperature in Wellington, United States hovers around 0°C (33°F). Expect a chilly range, with minimum temperatures dropping to -17°C (1°F) and peaking at a mild 22°C (71°F). The region experiences approximately 18 mm (0.7 in) of precipitation over 4 days, accompanied by high humidity levels averaging 85%.
In December in Wellington, the average temperature is 0°C (33°F). Maximum temperatures can reach 22°C (71°F), while the minimum can drop as low as -17°C (1°F). Travelers should be prepared for a wide range of temperatures, making layered clothing essential for outdoor activities.
In Wellington in December, the total precipitation amount is 18 mm (0.7 in) spread over a duration of 4 days.
In Wellington in December, humidity is 85%. With an average temperature of 0°C (33°F), this humidity feels like a heavy blanket, making the air feel colder and more biting, while creating an uncomfortable clamminess that can dampen the thrill of traveling.
In Wellington in December, the maximum UV index reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in Wellington for better planning.
UV Risk Categories
Weather in Wellington varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Wellington, focusing on differences in temperature, rainfall, humidity, and UV levels.
Temperature | Precipitation | Humidity | UV | |
---|---|---|---|---|
January Weather | -1°C (30°F) | 16 mm (0.6 inches) | 84% | moderate |
February Weather | -2°C (28°F) | 24 mm (0.9 inches) | 85% | high |
March Weather | 4°C (39°F) | 53 mm (2.1 inches) | 75% | very high |
April Weather | 7°C (45°F) | 54 mm (2.1 inches) | 67% | very high |
May Weather | 12°C (54°F) | 116 mm (4.6 inches) | 67% | extreme |
June Weather | 19°C (67°F) | 46 mm (1.8 inches) | 68% | extreme |
July Weather | 22°C (73°F) | 35 mm (1.4 inches) | 62% | extreme |
August Weather | 21°C (71°F) | 37 mm (1.5 inches) | 63% | extreme |
September Weather | 18°C (64°F) | 26 mm (1.0 inches) | 63% | very high |
October Weather | 8°C (47°F) | 36 mm (1.4 inches) | 72% | high |
November Weather | 4°C (40°F) | 24 mm (0.9 inches) | 79% | moderate |
December Weather | 0°C (33°F) | 18 mm (0.7 inches) | 85% | moderate |