Last updated: August 27, 2025
In January, the average temperature in Llangefni, United Kingdom hovers around 6°C (43°F). Expect chilly days, with minimums plummeting to -3°C (27°F) and highs reaching up to 14°C (57°F). Rainfall is not uncommon, with an average precipitation of 77 mm (3.0 in) spread over 13 days. You'll also find the air quite damp, with an average humidity of 89%. Be prepared for a brisk and wet month!
In January in Llangefni, the average temperature is 6°C (43°F), with maximums reaching 14°C (57°F) and minimums dropping as low as -3°C (27°F). Be prepared for chilly days and layer your clothing if you're planning to travel during this time.
In Llangefni in January, the precipitation amount is 77 mm (3.0 in) spread over a total of 13 days.
In Llangefni in January, humidity is 89%. With an average temperature of 6°C (43°F), this humidity feels like a chilly, damp embrace that can make outdoor activities uncomfortable and energy-draining, often leading travelers to seek shelter indoors or dress in layers to cope with the cold and moist air.
In Llangefni in January, 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 Llangefni.
UV Risk Categories
Weather in Llangefni varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in Llangefni, focusing on differences in temperature, rainfall, humidity, and UV levels.
Temperature | Precipitation | Humidity | UV | |
---|---|---|---|---|
January Weather | 6°C (43°F) | 77 mm (3.0 inches) | 89% | low |
February Weather | 6°C (44°F) | 103 mm (4.1 inches) | 88% | low |
March Weather | 7°C (45°F) | 104 mm (4.1 inches) | 86% | moderate |
April Weather | 9°C (48°F) | 55 mm (2.2 inches) | 84% | moderate |
May Weather | 12°C (53°F) | 71 mm (2.8 inches) | 79% | high |
June Weather | 15°C (59°F) | 91 mm (3.6 inches) | 81% | very high |
July Weather | 16°C (61°F) | 82 mm (3.2 inches) | 78% | very high |
August Weather | 16°C (61°F) | 105 mm (4.1 inches) | 79% | high |
September Weather | 14°C (57°F) | 98 mm (3.9 inches) | 85% | moderate |
October Weather | 11°C (53°F) | 128 mm (5.1 inches) | 90% | moderate |
November Weather | 9°C (48°F) | 111 mm (4.4 inches) | 91% | low |
December Weather | 7°C (45°F) | 129 mm (5.1 inches) | 89% | low |