Last updated: August 27, 2025
In December, the average temperature in Welland, United Kingdom hovers around 6°C (44°F). Visitors should be prepared for chilly conditions, as temperatures can drop to a brisk -10°C (14°F) at times, while the mercury may rise to a mild 14°C (58°F). Expect about 82 mm (3.2 in) of precipitation spread over 15 days, with an average humidity level of a sultry 92%. 🥶☔️
In December in Welland, the average temperature is 6°C (44°F). Maximums can reach 14°C (58°F) and minimums can be as low as -10°C (14°F). It’s advisable to pack warm clothing and plan indoor activities, as the weather can be quite chilly.
In Welland in December, the precipitation amount is 82 mm (3.2 in) over the course of 15 days.
In Welland in December, humidity is 92%. With an average temperature of 6°C (44°F), this humidity feels like a damp chill that clings to your skin, making outdoor explorations uncomfortable and leaving you longing for warmer, drier conditions.
In Welland in December, the maximum UV index is 1, which corresponds to a low Exposure Category. This means you have a time to burn of 45 minutes. For more details, you can check the Hourly UV Index in Welland.
UV Risk Categories
Weather in Welland varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Welland, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 5°C (41°F) | 50 mm (2.0 inches) | 91% | low |
| February Weather | 6°C (43°F) | 55 mm (2.2 inches) | 89% | low |
| March Weather | 7°C (45°F) | 66 mm (2.6 inches) | 86% | moderate |
| April Weather | 9°C (49°F) | 46 mm (1.8 inches) | 85% | moderate |
| May Weather | 12°C (55°F) | 69 mm (2.7 inches) | 79% | high |
| June Weather | 16°C (61°F) | 73 mm (2.9 inches) | 80% | very high |
| July Weather | 18°C (64°F) | 62 mm (2.4 inches) | 71% | very high |
| August Weather | 17°C (63°F) | 69 mm (2.7 inches) | 76% | high |
| September Weather | 15°C (58°F) | 52 mm (2.1 inches) | 82% | high |
| October Weather | 11°C (53°F) | 90 mm (3.6 inches) | 90% | moderate |
| November Weather | 8°C (46°F) | 68 mm (2.7 inches) | 92% | low |
| December Weather | 6°C (44°F) | 82 mm (3.2 inches) | 92% | low |